35 files changed, 5837 insertions, 0 deletions

diff --git a/bitbake/lib/bb/__init__.py b/bitbake/lib/bb/__init__.py
new file mode 100644
index 0000000000..00b0e8b57f
--- /dev/null
+++ b/bitbake/lib/bb/__init__.py
@@ -0,0 +1,1266 @@
+#!/usr/bin/python
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+"""
+BitBake Build System Python Library
+
+Copyright (C) 2003  Holger Schurig
+Copyright (C) 2003, 2004  Chris Larson
+
+Based on Gentoo's portage.py.
+
+This program is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free Software
+Foundation; either version 2 of the License, or (at your option) any later
+version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+Place, Suite 330, Boston, MA 02111-1307 USA.
+"""
+
+__version__ = "1.3.2"
+
+__all__ = [
+
+    "debug",
+    "note",
+    "error",
+    "fatal",
+
+    "mkdirhier",
+    "movefile",
+
+    "tokenize",
+    "evaluate",
+    "flatten",
+    "relparse",
+    "ververify",
+    "isjustname",
+    "isspecific",
+    "pkgsplit",
+    "catpkgsplit",
+    "vercmp",
+    "pkgcmp",
+    "dep_parenreduce",
+    "dep_opconvert",
+    "digraph",
+
+# fetch
+    "decodeurl",
+    "encodeurl",
+
+# modules
+    "parse",
+    "data",
+    "event",
+    "build",
+    "fetch",
+    "manifest"
+ ]
+
+whitespace = '\t\n\x0b\x0c\r '
+lowercase = 'abcdefghijklmnopqrstuvwxyz'
+
+import sys, os, types, re, string
+
+#projectdir = os.path.dirname(os.path.dirname(os.path.abspath(sys.argv[0])))
+projectdir = os.getcwd()
+
+debug_level = 0
+
+if "BBDEBUG" in os.environ:
+    level = int(os.environ["BBDEBUG"])
+    if level:
+        debug_level = level
+    else:
+        debug_level = 0
+
+class VarExpandError(Exception):
+    pass
+
+class MalformedUrl(Exception):
+    """Exception raised when encountering an invalid url"""
+
+
+#######################################################################
+#######################################################################
+#
+# SECTION: Debug
+#
+# PURPOSE: little functions to make yourself known
+#
+#######################################################################
+#######################################################################
+
+debug_prepend = ''
+
+
+def debug(lvl, *args):
+    if debug_level >= lvl:
+        print debug_prepend + 'DEBUG:', ''.join(args)
+
+def note(*args):
+    print debug_prepend + 'NOTE:', ''.join(args)
+
+def error(*args):
+    print debug_prepend + 'ERROR:', ''.join(args)
+
+def fatal(*args):
+    print debug_prepend + 'ERROR:', ''.join(args)
+    sys.exit(1)
+
+
+#######################################################################
+#######################################################################
+#
+# SECTION: File
+#
+# PURPOSE: Basic file and directory tree related functions
+#
+#######################################################################
+#######################################################################
+
+def mkdirhier(dir):
+    """Create a directory like 'mkdir -p', but does not complain if
+    directory already exists like os.makedirs
+    """
+
+    debug(3, "mkdirhier(%s)" % dir)
+    try:
+        os.makedirs(dir)
+        debug(2, "created " + dir)
+    except OSError, e:
+        if e.errno != 17: raise e
+
+
+#######################################################################
+
+import stat
+
+def movefile(src,dest,newmtime=None,sstat=None):
+    """Moves a file from src to dest, preserving all permissions and
+    attributes; mtime will be preserved even when moving across
+    filesystems.  Returns true on success and false on failure. Move is
+    atomic.
+    """
+
+    #print "movefile("+src+","+dest+","+str(newmtime)+","+str(sstat)+")"
+    try:
+        if not sstat:
+            sstat=os.lstat(src)
+    except Exception, e:
+        print "!!! Stating source file failed... movefile()"
+        print "!!!",e
+        return None
+
+    destexists=1
+    try:
+        dstat=os.lstat(dest)
+    except:
+        dstat=os.lstat(os.path.dirname(dest))
+        destexists=0
+
+    if destexists:
+        if stat.S_ISLNK(dstat[stat.ST_MODE]):
+            try:
+                os.unlink(dest)
+                destexists=0
+            except Exception, e:
+                pass
+
+    if stat.S_ISLNK(sstat[stat.ST_MODE]):
+        try:
+            target=os.readlink(src)
+            if destexists and not stat.S_ISDIR(dstat[stat.ST_MODE]):
+                os.unlink(dest)
+            os.symlink(target,dest)
+#            os.lchown(dest,sstat[stat.ST_UID],sstat[stat.ST_GID])
+            os.unlink(src)
+            return os.lstat(dest)
+        except Exception, e:
+            print "!!! failed to properly create symlink:"
+            print "!!!",dest,"->",target
+            print "!!!",e
+            return None
+
+    renamefailed=1
+    if sstat[stat.ST_DEV]==dstat[stat.ST_DEV]:
+        try:
+            ret=os.rename(src,dest)
+            renamefailed=0
+        except Exception, e:
+            import errno
+            if e[0]!=errno.EXDEV:
+                # Some random error.
+                print "!!! Failed to move",src,"to",dest
+                print "!!!",e
+                return None
+            # Invalid cross-device-link 'bind' mounted or actually Cross-Device
+
+    if renamefailed:
+        didcopy=0
+        if stat.S_ISREG(sstat[stat.ST_MODE]):
+            try: # For safety copy then move it over.
+                shutil.copyfile(src,dest+"#new")
+                os.rename(dest+"#new",dest)
+                didcopy=1
+            except Exception, e:
+                print '!!! copy',src,'->',dest,'failed.'
+                print "!!!",e
+                return None
+        else:
+            #we don't yet handle special, so we need to fall back to /bin/mv
+            a=getstatusoutput("/bin/mv -f "+"'"+src+"' '"+dest+"'")
+            if a[0]!=0:
+                print "!!! Failed to move special file:"
+                print "!!! '"+src+"' to '"+dest+"'"
+                print "!!!",a
+                return None # failure
+        try:
+            if didcopy:
+                missingos.lchown(dest,sstat[stat.ST_UID],sstat[stat.ST_GID])
+                os.chmod(dest, stat.S_IMODE(sstat[stat.ST_MODE])) # Sticky is reset on chown
+                os.unlink(src)
+        except Exception, e:
+            print "!!! Failed to chown/chmod/unlink in movefile()"
+            print "!!!",dest
+            print "!!!",e
+            return None
+
+    if newmtime:
+        os.utime(dest,(newmtime,newmtime))
+    else:
+        os.utime(dest, (sstat[stat.ST_ATIME], sstat[stat.ST_MTIME]))
+        newmtime=sstat[stat.ST_MTIME]
+    return newmtime
+
+
+
+#######################################################################
+#######################################################################
+#
+# SECTION: Download
+#
+# PURPOSE: Download via HTTP, FTP, CVS, BITKEEPER, handling of MD5-signatures
+#          and mirrors
+#
+#######################################################################
+#######################################################################
+
+def decodeurl(url):
+    """Decodes an URL into the tokens (scheme, network location, path,
+    user, password, parameters).
+
+    >>> decodeurl("http://www.google.com/index.html")
+    ('http', 'www.google.com', '/index.html', '', '', {})
+
+    CVS url with username, host and cvsroot. The cvs module to check out is in the
+    parameters:
+
+    >>> decodeurl("cvs://anoncvs@cvs.handhelds.org/cvs;module=familiar/dist/ipkg")
+    ('cvs', 'cvs.handhelds.org', '/cvs', 'anoncvs', '', {'module': 'familiar/dist/ipkg'})
+
+    Dito, but this time the username has a password part. And we also request a special tag
+    to check out.
+
+    >>> decodeurl("cvs://anoncvs:anonymous@cvs.handhelds.org/cvs;module=familiar/dist/ipkg;tag=V0-99-81")
+    ('cvs', 'cvs.handhelds.org', '/cvs', 'anoncvs', 'anonymous', {'tag': 'V0-99-81', 'module': 'familiar/dist/ipkg'})
+    """
+
+    m = re.compile('(?P<type>[^:]*)://((?P<user>.+)@)?(?P<location>[^;]+)(;(?P<parm>.*))?').match(url)
+    if not m:
+        raise MalformedUrl(url)
+
+    type = m.group('type')
+    location = m.group('location')
+    if not location:
+        raise MalformedUrl(url)
+    user = m.group('user')
+    parm = m.group('parm')
+    m = re.compile('(?P<host>[^/;]+)(?P<path>/[^;]+)').match(location)
+    if m:
+        host = m.group('host')
+        path = m.group('path')
+    else:
+        host = ""
+        path = location
+    if user:
+        m = re.compile('(?P<user>[^:]+)(:?(?P<pswd>.*))').match(user)
+        if m:
+            user = m.group('user')
+            pswd = m.group('pswd')
+    else:
+        user = ''
+        pswd = ''
+
+    p = {}
+    if parm:
+        for s in parm.split(';'):
+            s1,s2 = s.split('=')
+            p[s1] = s2
+
+    return (type, host, path, user, pswd, p)
+
+#######################################################################
+
+def encodeurl(decoded):
+    """Encodes a URL from tokens (scheme, network location, path,
+    user, password, parameters).
+
+    >>> encodeurl(['http', 'www.google.com', '/index.html', '', '', {}])
+    'http://www.google.com/index.html'
+
+    CVS with username, host and cvsroot. The cvs module to check out is in the
+    parameters:
+
+    >>> encodeurl(['cvs', 'cvs.handhelds.org', '/cvs', 'anoncvs', '', {'module': 'familiar/dist/ipkg'}])
+    'cvs://anoncvs@cvs.handhelds.org/cvs;module=familiar/dist/ipkg'
+
+    Dito, but this time the username has a password part. And we also request a special tag
+    to check out.
+
+    >>> encodeurl(['cvs', 'cvs.handhelds.org', '/cvs', 'anoncvs', 'anonymous', {'tag': 'V0-99-81', 'module': 'familiar/dist/ipkg'}])
+    'cvs://anoncvs:anonymous@cvs.handhelds.org/cvs;tag=V0-99-81;module=familiar/dist/ipkg'
+    """
+
+    (type, host, path, user, pswd, p) = decoded
+
+    if not type or not path:
+        fatal("invalid or missing parameters for url encoding")
+    url = '%s://' % type
+    if user:
+        url += "%s" % user
+        if pswd:
+            url += ":%s" % pswd
+        url += "@"
+    if host:
+        url += "%s" % host
+    url += "%s" % path
+    if p:
+        for parm in p.keys():
+            url += ";%s=%s" % (parm, p[parm])
+
+    return url
+
+#######################################################################
+
+def which(path, item, direction = 0):
+    """Useful function for locating a file in a PATH"""
+    found = ""
+    for p in (path or "").split(':'):
+        if os.path.exists(os.path.join(p, item)):
+            found = os.path.join(p, item)
+            if direction == 0:
+                break
+    return found
+
+#######################################################################
+
+
+
+
+#######################################################################
+#######################################################################
+#
+# SECTION: Dependency
+#
+# PURPOSE: Compare build & run dependencies
+#
+#######################################################################
+#######################################################################
+
+def tokenize(mystring):
+    """Breaks a string like 'foo? (bar) oni? (blah (blah))' into (possibly embedded) lists:
+
+    >>> tokenize("x")
+    ['x']
+    >>> tokenize("x y")
+    ['x', 'y']
+    >>> tokenize("(x y)")
+    [['x', 'y']]
+    >>> tokenize("(x y) b c")
+    [['x', 'y'], 'b', 'c']
+    >>> tokenize("foo? (bar) oni? (blah (blah))")
+    ['foo?', ['bar'], 'oni?', ['blah', ['blah']]]
+    >>> tokenize("sys-apps/linux-headers nls? (sys-devel/gettext)")
+    ['sys-apps/linux-headers', 'nls?', ['sys-devel/gettext']]
+    """
+
+    newtokens = []
+    curlist   = newtokens
+    prevlists = []
+    level     = 0
+    accum     = ""
+    for x in mystring:
+        if x=="(":
+            if accum:
+                curlist.append(accum)
+                accum=""
+            prevlists.append(curlist)
+            curlist=[]
+            level=level+1
+        elif x==")":
+            if accum:
+                curlist.append(accum)
+                accum=""
+            if level==0:
+                print "!!! tokenizer: Unmatched left parenthesis in:\n'"+mystring+"'"
+                return None
+            newlist=curlist
+            curlist=prevlists.pop()
+            curlist.append(newlist)
+            level=level-1
+        elif x in whitespace:
+            if accum:
+                curlist.append(accum)
+                accum=""
+        else:
+            accum=accum+x
+    if accum:
+        curlist.append(accum)
+    if (level!=0):
+        print "!!! tokenizer: Exiting with unterminated parenthesis in:\n'"+mystring+"'"
+        return None
+    return newtokens
+
+
+#######################################################################
+
+def evaluate(tokens,mydefines,allon=0):
+    """Removes tokens based on whether conditional definitions exist or not.
+    Recognizes !
+
+    >>> evaluate(['sys-apps/linux-headers', 'nls?', ['sys-devel/gettext']], {})
+    ['sys-apps/linux-headers']
+
+    Negate the flag:
+
+    >>> evaluate(['sys-apps/linux-headers', '!nls?', ['sys-devel/gettext']], {})
+    ['sys-apps/linux-headers', ['sys-devel/gettext']]
+
+    Define 'nls':
+
+    >>> evaluate(['sys-apps/linux-headers', 'nls?', ['sys-devel/gettext']], {"nls":1})
+    ['sys-apps/linux-headers', ['sys-devel/gettext']]
+
+    Turn allon on:
+
+    >>> evaluate(['sys-apps/linux-headers', 'nls?', ['sys-devel/gettext']], {}, True)
+    ['sys-apps/linux-headers', ['sys-devel/gettext']]
+    """
+
+    if tokens == None:
+        return None
+    mytokens = tokens + []        # this copies the list
+    pos = 0
+    while pos < len(mytokens):
+        if type(mytokens[pos]) == types.ListType:
+            evaluate(mytokens[pos], mydefines)
+            if not len(mytokens[pos]):
+                del mytokens[pos]
+                continue
+        elif mytokens[pos][-1] == "?":
+            cur = mytokens[pos][:-1]
+            del mytokens[pos]
+            if allon:
+                if cur[0] == "!":
+                    del mytokens[pos]
+            else:
+                if cur[0] == "!":
+                    if (cur[1:] in mydefines) and (pos < len(mytokens)):
+                        del mytokens[pos]
+                        continue
+                elif (cur not in mydefines) and (pos < len(mytokens)):
+                    del mytokens[pos]
+                    continue
+        pos = pos + 1
+    return mytokens
+
+
+#######################################################################
+
+def flatten(mytokens):
+    """Converts nested arrays into a flat arrays:
+
+    >>> flatten([1,[2,3]])
+    [1, 2, 3]
+    >>> flatten(['sys-apps/linux-headers', ['sys-devel/gettext']])
+    ['sys-apps/linux-headers', 'sys-devel/gettext']
+    """
+
+    newlist=[]
+    for x in mytokens:
+        if type(x)==types.ListType:
+            newlist.extend(flatten(x))
+        else:
+            newlist.append(x)
+    return newlist
+
+
+#######################################################################
+
+_package_weights_ = {"pre":-2,"p":0,"alpha":-4,"beta":-3,"rc":-1}    # dicts are unordered
+_package_ends_    = ["pre", "p", "alpha", "beta", "rc", "cvs", "bk", "HEAD" ]            # so we need ordered list
+
+def relparse(myver):
+    """Parses the last elements of a version number into a triplet, that can
+    later be compared:
+
+    >>> relparse('1.2_pre3')
+    [1.2, -2, 3.0]
+    >>> relparse('1.2b')
+    [1.2, 98, 0]
+    >>> relparse('1.2')
+    [1.2, 0, 0]
+    """
+
+    number   = 0
+    p1       = 0
+    p2       = 0
+    mynewver = myver.split('_')
+    if len(mynewver)==2:
+        # an _package_weights_
+        number = float(mynewver[0])
+        match = 0
+        for x in _package_ends_:
+            elen = len(x)
+            if mynewver[1][:elen] == x:
+                match = 1
+                p1 = _package_weights_[x]
+                try:
+                    p2 = float(mynewver[1][elen:])
+                except:
+                    p2 = 0
+                break
+        if not match:
+            # normal number or number with letter at end
+            divider = len(myver)-1
+            if myver[divider:] not in "1234567890":
+                # letter at end
+                p1 = ord(myver[divider:])
+                number = float(myver[0:divider])
+            else:
+                number = float(myver)
+    else:
+        # normal number or number with letter at end
+        divider = len(myver)-1
+        if myver[divider:] not in "1234567890":
+            #letter at end
+            p1     = ord(myver[divider:])
+            number = float(myver[0:divider])
+        else:
+            number = float(myver)
+    return [number,p1,p2]
+
+
+#######################################################################
+
+__ververify_cache__ = {}
+
+def ververify(myorigval,silent=1):
+    """Returns 1 if given a valid version string, els 0. Valid versions are in the format
+
+    <v1>.<v2>...<vx>[a-z,_{_package_weights_}[vy]]
+
+    >>> ververify('2.4.20')
+    1
+    >>> ververify('2.4..20')        # two dots
+    0
+    >>> ververify('2.x.20')            # 'x' is not numeric
+    0
+    >>> ververify('2.4.20a')
+    1
+    >>> ververify('2.4.20cvs')        # only one trailing letter
+    0
+    >>> ververify('1a')
+    1
+    >>> ververify('test_a')            # no version at all
+    0
+    >>> ververify('2.4.20_beta1')
+    1
+    >>> ververify('2.4.20_beta')
+    1
+    >>> ververify('2.4.20_wrongext')    # _wrongext is no valid trailer
+    0
+    """
+
+    # Lookup the cache first
+    try:
+        return __ververify_cache__[myorigval]
+    except KeyError:
+        pass
+
+    if len(myorigval) == 0:
+        if not silent:
+            error("package version is empty")
+        __ververify_cache__[myorigval] = 0
+        return 0
+    myval = myorigval.split('.')
+    if len(myval)==0:
+        if not silent:
+            error("package name has empty version string")
+        __ververify_cache__[myorigval] = 0
+        return 0
+    # all but the last version must be a numeric
+    for x in myval[:-1]:
+        if not len(x):
+            if not silent:
+                error("package version has two points in a row")
+            __ververify_cache__[myorigval] = 0
+            return 0
+        try:
+            foo = int(x)
+        except:
+            if not silent:
+                error("package version contains non-numeric '"+x+"'")
+            __ververify_cache__[myorigval] = 0
+            return 0
+    if not len(myval[-1]):
+            if not silent:
+                error("package version has trailing dot")
+            __ververify_cache__[myorigval] = 0
+            return 0
+    try:
+        foo = int(myval[-1])
+        __ververify_cache__[myorigval] = 1
+        return 1
+    except:
+        pass
+
+    # ok, our last component is not a plain number or blank, let's continue
+    if myval[-1][-1] in lowercase:
+        try:
+            foo = int(myval[-1][:-1])
+            return 1
+            __ververify_cache__[myorigval] = 1
+            # 1a, 2.0b, etc.
+        except:
+            pass
+    # ok, maybe we have a 1_alpha or 1_beta2; let's see
+    ep=string.split(myval[-1],"_")
+    if len(ep)!= 2:
+        if not silent:
+            error("package version has more than one letter at then end")
+        __ververify_cache__[myorigval] = 0
+        return 0
+    try:
+        foo = string.atoi(ep[0])
+    except:
+        # this needs to be numeric, i.e. the "1" in "1_alpha"
+        if not silent:
+            error("package version must have numeric part before the '_'")
+        __ververify_cache__[myorigval] = 0
+        return 0
+
+    for mye in _package_ends_:
+        if ep[1][0:len(mye)] == mye:
+            if len(mye) == len(ep[1]):
+                # no trailing numeric is ok
+                __ververify_cache__[myorigval] = 1
+                return 1
+            else:
+                try:
+                    foo = string.atoi(ep[1][len(mye):])
+                    __ververify_cache__[myorigval] = 1
+                    return 1
+                except:
+                    # if no _package_weights_ work, *then* we return 0
+                    pass
+    if not silent:
+        error("package version extension after '_' is invalid")
+    __ververify_cache__[myorigval] = 0
+    return 0
+
+
+def isjustname(mypkg):
+    myparts = string.split(mypkg,'-')
+    for x in myparts:
+        if ververify(x):
+            return 0
+    return 1
+
+
+_isspecific_cache_={}
+
+def isspecific(mypkg):
+    "now supports packages with no category"
+    try:
+        return __isspecific_cache__[mypkg]
+    except:
+        pass
+
+    mysplit = string.split(mypkg,"/")
+    if not isjustname(mysplit[-1]):
+            __isspecific_cache__[mypkg] = 1
+            return 1
+    __isspecific_cache__[mypkg] = 0
+    return 0
+
+
+#######################################################################
+
+__pkgsplit_cache__={}
+
+def pkgsplit(mypkg, silent=1):
+
+    """This function can be used as a package verification function. If
+    it is a valid name, pkgsplit will return a list containing:
+    [pkgname, pkgversion(norev), pkgrev ].
+
+    >>> pkgsplit('')
+    >>> pkgsplit('x')
+    >>> pkgsplit('x-')
+    >>> pkgsplit('-1')
+    >>> pkgsplit('glibc-1.2-8.9-r7')
+    >>> pkgsplit('glibc-2.2.5-r7')
+    ['glibc', '2.2.5', 'r7']
+    >>> pkgsplit('foo-1.2-1')
+    >>> pkgsplit('Mesa-3.0')
+    ['Mesa', '3.0', 'r0']
+    """
+
+    try:
+        return __pkgsplit_cache__[mypkg]
+    except KeyError:
+        pass
+
+    myparts = string.split(mypkg,'-')
+    if len(myparts) < 2:
+        if not silent:
+            error("package name without name or version part")
+        __pkgsplit_cache__[mypkg] = None
+        return None
+    for x in myparts:
+        if len(x) == 0:
+            if not silent:
+                error("package name with empty name or version part")
+            __pkgsplit_cache__[mypkg] = None
+            return None
+    # verify rev
+    revok = 0
+    myrev = myparts[-1]
+    ververify(myrev, silent)
+    if len(myrev) and myrev[0] == "r":
+        try:
+            string.atoi(myrev[1:])
+            revok = 1
+        except:
+            pass
+    if revok:
+        if ververify(myparts[-2]):
+            if len(myparts) == 2:
+                __pkgsplit_cache__[mypkg] = None
+                return None
+            else:
+                for x in myparts[:-2]:
+                    if ververify(x):
+                        __pkgsplit_cache__[mypkg]=None
+                        return None
+                        # names can't have versiony looking parts
+                myval=[string.join(myparts[:-2],"-"),myparts[-2],myparts[-1]]
+                __pkgsplit_cache__[mypkg]=myval
+                return myval
+        else:
+            __pkgsplit_cache__[mypkg] = None
+            return None
+
+    elif ververify(myparts[-1],silent):
+        if len(myparts)==1:
+            if not silent:
+                print "!!! Name error in",mypkg+": missing name part."
+            __pkgsplit_cache__[mypkg]=None
+            return None
+        else:
+            for x in myparts[:-1]:
+                if ververify(x):
+                    if not silent: error("package name has multiple version parts")
+                    __pkgsplit_cache__[mypkg] = None
+                    return None
+            myval = [string.join(myparts[:-1],"-"), myparts[-1],"r0"]
+            __pkgsplit_cache__[mypkg] = myval
+            return myval
+    else:
+        __pkgsplit_cache__[mypkg] = None
+        return None
+
+
+#######################################################################
+
+__catpkgsplit_cache__ = {}
+
+def catpkgsplit(mydata,silent=1):
+    """returns [cat, pkgname, version, rev ]
+
+    >>> catpkgsplit('sys-libs/glibc-1.2-r7')
+    ['sys-libs', 'glibc', '1.2', 'r7']
+    >>> catpkgsplit('glibc-1.2-r7')
+    [None, 'glibc', '1.2', 'r7']
+    """
+
+    try:
+        return __catpkgsplit_cache__[mydata]
+    except KeyError:
+        pass
+
+    cat = os.path.basename(os.path.dirname(mydata))
+    mydata = os.path.join(cat, os.path.basename(mydata))
+    if mydata[-3:] == '.bb':
+        mydata = mydata[:-3]
+
+    mysplit = mydata.split("/")
+    p_split = None
+    splitlen = len(mysplit)
+    if splitlen == 1:
+        retval = [None]
+        p_split = pkgsplit(mydata,silent)
+    else:
+        retval = [mysplit[splitlen - 2]]
+        p_split = pkgsplit(mysplit[splitlen - 1],silent)
+    if not p_split:
+        __catpkgsplit_cache__[mydata] = None
+        return None
+    retval.extend(p_split)
+    __catpkgsplit_cache__[mydata] = retval
+    return retval
+
+
+#######################################################################
+
+__vercmp_cache__ = {}
+
+def vercmp(val1,val2):
+    """This takes two version strings and returns an integer to tell you whether
+    the versions are the same, val1>val2 or val2>val1.
+
+    >>> vercmp('1', '2')
+    -1.0
+    >>> vercmp('2', '1')
+    1.0
+    >>> vercmp('1', '1.0')
+    0
+    >>> vercmp('1', '1.1')
+    -1.0
+    >>> vercmp('1.1', '1_p2')
+    1.0
+    """
+
+    # quick short-circuit
+    if val1 == val2:
+        return 0
+    valkey = val1+" "+val2
+
+    # cache lookup
+    try:
+        return __vercmp_cache__[valkey]
+        try:
+            return - __vercmp_cache__[val2+" "+val1]
+        except KeyError:
+            pass
+    except KeyError:
+        pass
+
+    # consider 1_p2 vc 1.1
+    # after expansion will become (1_p2,0) vc (1,1)
+    # then 1_p2 is compared with 1 before 0 is compared with 1
+    # to solve the bug we need to convert it to (1,0_p2)
+    # by splitting _prepart part and adding it back _after_expansion
+
+    val1_prepart = val2_prepart = ''
+    if val1.count('_'):
+        val1, val1_prepart = val1.split('_', 1)
+    if val2.count('_'):
+        val2, val2_prepart = val2.split('_', 1)
+
+    # replace '-' by '.'
+    # FIXME: Is it needed? can val1/2 contain '-'?
+
+    val1 = string.split(val1,'-')
+    if len(val1) == 2:
+        val1[0] = val1[0] +"."+ val1[1]
+    val2 = string.split(val2,'-')
+    if len(val2) == 2:
+        val2[0] = val2[0] +"."+ val2[1]
+
+    val1 = string.split(val1[0],'.')
+    val2 = string.split(val2[0],'.')
+
+    # add back decimal point so that .03 does not become "3" !
+    for x in range(1,len(val1)):
+        if val1[x][0] == '0' :
+            val1[x] = '.' + val1[x]
+    for x in range(1,len(val2)):
+        if val2[x][0] == '0' :
+            val2[x] = '.' + val2[x]
+
+    # extend varion numbers
+    if len(val2) < len(val1):
+        val2.extend(["0"]*(len(val1)-len(val2)))
+    elif len(val1) < len(val2):
+        val1.extend(["0"]*(len(val2)-len(val1)))
+
+    # add back _prepart tails
+    if val1_prepart:
+        val1[-1] += '_' + val1_prepart
+    if val2_prepart:
+        val2[-1] += '_' + val2_prepart
+    # The above code will extend version numbers out so they
+    # have the same number of digits.
+    for x in range(0,len(val1)):
+        cmp1 = relparse(val1[x])
+        cmp2 = relparse(val2[x])
+        for y in range(0,3):
+            myret = cmp1[y] - cmp2[y]
+            if myret != 0:
+                __vercmp_cache__[valkey] = myret
+                return myret
+    __vercmp_cache__[valkey] = 0
+    return 0
+
+
+#######################################################################
+
+def pkgcmp(pkg1,pkg2):
+    """ Compares two packages, which should have been split via
+    pkgsplit(). if the return value val is less than zero, then pkg2 is
+    newer than pkg1, zero if equal and positive if older.
+
+    >>> pkgcmp(['glibc', '2.2.5', 'r7'], ['glibc', '2.2.5', 'r7'])
+    0
+    >>> pkgcmp(['glibc', '2.2.5', 'r4'], ['glibc', '2.2.5', 'r7'])
+    -1
+    >>> pkgcmp(['glibc', '2.2.5', 'r7'], ['glibc', '2.2.5', 'r2'])
+    1
+    """
+
+    mycmp = vercmp(pkg1[1],pkg2[1])
+    if mycmp > 0:
+        return 1
+    if mycmp < 0:
+        return -1
+    r1=string.atoi(pkg1[2][1:])
+    r2=string.atoi(pkg2[2][1:])
+    if r1 > r2:
+        return 1
+    if r2 > r1:
+        return -1
+    return 0
+
+
+#######################################################################
+
+def dep_parenreduce(mysplit, mypos=0):
+    """Accepts a list of strings, and converts '(' and ')' surrounded items to sub-lists:
+
+    >>> dep_parenreduce([''])
+    ['']
+    >>> dep_parenreduce(['1', '2', '3'])
+    ['1', '2', '3']
+    >>> dep_parenreduce(['1', '(', '2', '3', ')', '4'])
+    ['1', ['2', '3'], '4']
+    """
+
+    while mypos < len(mysplit):
+        if mysplit[mypos] == "(":
+            firstpos = mypos
+            mypos = mypos + 1
+            while mypos < len(mysplit):
+                if mysplit[mypos] == ")":
+                    mysplit[firstpos:mypos+1] = [mysplit[firstpos+1:mypos]]
+                    mypos = firstpos
+                    break
+                elif mysplit[mypos] == "(":
+                    # recurse
+                    mysplit = dep_parenreduce(mysplit,mypos)
+                mypos = mypos + 1
+        mypos = mypos + 1
+    return mysplit
+
+
+def dep_opconvert(mysplit, myuse):
+    "Does dependency operator conversion"
+
+    mypos   = 0
+    newsplit = []
+    while mypos < len(mysplit):
+        if type(mysplit[mypos]) == types.ListType:
+            newsplit.append(dep_opconvert(mysplit[mypos],myuse))
+            mypos += 1
+        elif mysplit[mypos] == ")":
+            # mismatched paren, error
+            return None
+        elif mysplit[mypos]=="||":
+            if ((mypos+1)>=len(mysplit)) or (type(mysplit[mypos+1])!=types.ListType):
+                # || must be followed by paren'd list
+                return None
+            try:
+                mynew = dep_opconvert(mysplit[mypos+1],myuse)
+            except Exception, e:
+                error("unable to satisfy OR dependancy: " + string.join(mysplit," || "))
+                raise e
+            mynew[0:0] = ["||"]
+            newsplit.append(mynew)
+            mypos += 2
+        elif mysplit[mypos][-1] == "?":
+            # use clause, i.e "gnome? ( foo bar )"
+            # this is a quick and dirty hack so that repoman can enable all USE vars:
+            if (len(myuse) == 1) and (myuse[0] == "*"):
+                # enable it even if it's ! (for repoman) but kill it if it's
+                # an arch variable that isn't for this arch. XXX Sparc64?
+                if (mysplit[mypos][:-1] not in settings.usemask) or \
+                        (mysplit[mypos][:-1]==settings["ARCH"]):
+                    enabled=1
+                else:
+                    enabled=0
+            else:
+                if mysplit[mypos][0] == "!":
+                    myusevar = mysplit[mypos][1:-1]
+                    enabled = not myusevar in myuse
+                    #if myusevar in myuse:
+                    #    enabled = 0
+                    #else:
+                    #    enabled = 1
+                else:
+                    myusevar=mysplit[mypos][:-1]
+                    enabled = myusevar in myuse
+                    #if myusevar in myuse:
+                    #    enabled=1
+                    #else:
+                    #    enabled=0
+            if (mypos +2 < len(mysplit)) and (mysplit[mypos+2] == ":"):
+                # colon mode
+                if enabled:
+                    # choose the first option
+                    if type(mysplit[mypos+1]) == types.ListType:
+                        newsplit.append(dep_opconvert(mysplit[mypos+1],myuse))
+                    else:
+                        newsplit.append(mysplit[mypos+1])
+                else:
+                    # choose the alternate option
+                    if type(mysplit[mypos+1]) == types.ListType:
+                        newsplit.append(dep_opconvert(mysplit[mypos+3],myuse))
+                    else:
+                        newsplit.append(mysplit[mypos+3])
+                mypos += 4
+            else:
+                # normal use mode
+                if enabled:
+                    if type(mysplit[mypos+1]) == types.ListType:
+                        newsplit.append(dep_opconvert(mysplit[mypos+1],myuse))
+                    else:
+                        newsplit.append(mysplit[mypos+1])
+                # otherwise, continue
+                mypos += 2
+        else:
+            # normal item
+            newsplit.append(mysplit[mypos])
+            mypos += 1
+    return newsplit
+
+class digraph:
+    """beautiful directed graph object"""
+
+    def __init__(self):
+        self.dict={}
+        #okeys = keys, in order they were added (to optimize firstzero() ordering)
+        self.okeys=[]
+        self.__callback_cache=[]
+
+    def __str__(self):
+        str = ""
+        for key in self.okeys:
+            str += "%s:\t%s\n" % (key, self.dict[key][1])
+        return str
+
+    def addnode(self,mykey,myparent):
+        if not mykey in self.dict:
+            self.okeys.append(mykey)
+            if myparent==None:
+                self.dict[mykey]=[0,[]]
+            else:
+                self.dict[mykey]=[0,[myparent]]
+                self.dict[myparent][0]=self.dict[myparent][0]+1
+            return
+        if myparent and (not myparent in self.dict[mykey][1]):
+            self.dict[mykey][1].append(myparent)
+            self.dict[myparent][0]=self.dict[myparent][0]+1
+
+    def delnode(self,mykey, ref = 1):
+        """Delete a node
+
+        If ref is 1, remove references to this node from other nodes.
+        If ref is 2, remove nodes that reference this node."""
+        if not mykey in self.dict:
+            return
+        for x in self.dict[mykey][1]:
+            self.dict[x][0]=self.dict[x][0]-1
+        del self.dict[mykey]
+        while 1:
+            try:
+                self.okeys.remove(mykey)
+            except ValueError:
+                break
+        if ref:
+            __kill = []
+            for k in self.okeys:
+                if mykey in self.dict[k][1]:
+                    if ref == 1 or ref == 2:
+                        self.dict[k][1].remove(mykey)
+                    if ref == 2:
+                        __kill.append(k)
+            for l in __kill:
+                self.delnode(l, ref)
+
+    def allnodes(self):
+        "returns all nodes in the dictionary"
+        return self.dict.keys()
+
+    def firstzero(self):
+        "returns first node with zero references, or NULL if no such node exists"
+        for x in self.okeys:
+            if self.dict[x][0]==0:
+                return x
+        return None
+
+    def firstnonzero(self):
+        "returns first node with nonzero references, or NULL if no such node exists"
+        for x in self.okeys:
+            if self.dict[x][0]!=0:
+                return x
+        return None
+
+
+    def allzeros(self):
+        "returns all nodes with zero references, or NULL if no such node exists"
+        zerolist = []
+        for x in self.dict.keys():
+            if self.dict[x][0]==0:
+                zerolist.append(x)
+        return zerolist
+
+    def hasallzeros(self):
+        "returns 0/1, Are all nodes zeros? 1 : 0"
+        zerolist = []
+        for x in self.dict.keys():
+            if self.dict[x][0]!=0:
+                return 0
+        return 1
+
+    def empty(self):
+        if len(self.dict)==0:
+            return 1
+        return 0
+
+    def hasnode(self,mynode):
+        return mynode in self.dict
+
+    def getparents(self, item):
+        if not self.hasnode(item):
+            return []
+        return self.dict[item][1]
+
+    def getchildren(self, item):
+        if not self.hasnode(item):
+            return []
+        children = [i for i in self.okeys if item in self.getparents(i)]
+        return children
+
+    def walkdown(self, item, callback, debug = None, usecache = False):
+        if not self.hasnode(item):
+            return 0
+
+        if usecache:
+            if self.__callback_cache.count(item):
+                if debug:
+                    print "hit cache for item: %s" % item
+                return 1
+
+        parents = self.getparents(item)
+        children = self.getchildren(item)
+        for p in parents:
+            if p in children:
+#                print "%s is both parent and child of %s" % (p, item)
+                if usecache:
+                    self.__callback_cache.append(p)
+                ret = callback(self, p)
+                if ret == 0:
+                    return 0
+                continue
+            if item == p:
+                print "eek, i'm my own parent!"
+                return 0
+            if debug:
+                print "item: %s, p: %s" % (item, p)
+            ret = self.walkdown(p, callback, debug, usecache)
+            if ret == 0:
+                return 0
+        if usecache:
+            self.__callback_cache.append(item)
+        return callback(self, item)
+
+    def walkup(self, item, callback):
+        if not self.hasnode(item):
+            return 0
+
+        parents = self.getparents(item)
+        children = self.getchildren(item)
+        for c in children:
+            if c in parents:
+                ret = callback(self, item)
+                if ret == 0:
+                    return 0
+                continue
+            if item == c:
+                print "eek, i'm my own child!"
+                return 0
+            ret = self.walkup(c, callback)
+            if ret == 0:
+                return 0
+        return callback(self, item)
+
+    def copy(self):
+        mygraph=digraph()
+        for x in self.dict.keys():
+            mygraph.dict[x]=self.dict[x][:]
+            mygraph.okeys=self.okeys[:]
+        return mygraph
+
+#######################################################################
+#######################################################################
+#
+# SECTION: Config
+#
+# PURPOSE: Reading and handling of system/target-specific/local configuration
+#       reading of package configuration
+#
+#######################################################################
+#######################################################################
+
+def reader(cfgfile, feeder):
+    """Generic configuration file reader that opens a file, reads the lines,
+    handles continuation lines, comments, empty lines and feed all read lines
+    into the function feeder(lineno, line).
+    """
+
+    f = open(cfgfile,'r')
+    lineno = 0
+    while 1:
+        lineno = lineno + 1
+        s = f.readline()
+        if not s: break
+        w = s.strip()
+        if not w: continue        # skip empty lines
+        s = s.rstrip()
+        if s[0] == '#': continue    # skip comments
+        while s[-1] == '\\':
+            s2 = f.readline()[:-1].strip()
+            s = s[:-1] + s2
+        feeder(lineno, s)
+
+if __name__ == "__main__":
+    import doctest, bb
+    doctest.testmod(bb)
diff --git a/bitbake/lib/bb/__init__.pyc b/bitbake/lib/bb/__init__.pyc
new file mode 100644
index 0000000000..e8331843e8
--- /dev/null
+++ b/bitbake/lib/bb/__init__.pyc
diff --git a/bitbake/lib/bb/build.py b/bitbake/lib/bb/build.py
new file mode 100644
index 0000000000..599b45d9d3
--- /dev/null
+++ b/bitbake/lib/bb/build.py
@@ -0,0 +1,395 @@
+#!/usr/bin/env python
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+"""
+BitBake 'Build' implementation
+
+Core code for function execution and task handling in the
+BitBake build tools.
+
+Copyright (C) 2003, 2004  Chris Larson
+
+Based on Gentoo's portage.py.
+
+This program is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free Software
+Foundation; either version 2 of the License, or (at your option) any later
+version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+
+Based on functions from the base bb module, Copyright 2003 Holger Schurig
+"""
+
+from bb import debug, data, fetch, fatal, error, note, event, mkdirhier
+import bb, os
+
+# data holds flags and function name for a given task
+_task_data = data.init()
+
+# graph represents task interdependencies
+_task_graph = bb.digraph()
+
+# stack represents execution order, excepting dependencies
+_task_stack = []
+
+# events
+class FuncFailed(Exception):
+    """Executed function failed"""
+
+class EventException(Exception):
+    """Exception which is associated with an Event."""
+
+    def __init__(self, msg, event):
+        self.args = msg, event
+
+class TaskBase(event.Event):
+    """Base class for task events"""
+
+    def __init__(self, t, d ):
+        self._task = t
+        event.Event.__init__(self, d)
+
+    def getTask(self):
+        return self._task
+
+    def setTask(self, task):
+        self._task = task
+
+    task = property(getTask, setTask, None, "task property")
+
+class TaskStarted(TaskBase):
+    """Task execution started"""
+
+class TaskSucceeded(TaskBase):
+    """Task execution completed"""
+
+class TaskFailed(TaskBase):
+    """Task execution failed"""
+
+class InvalidTask(TaskBase):
+    """Invalid Task"""
+
+# functions
+
+def init(data):
+    global _task_data, _task_graph, _task_stack
+    _task_data = data.init()
+    _task_graph = bb.digraph()
+    _task_stack = []
+
+
+def exec_func(func, d, dirs = None):
+    """Execute an BB 'function'"""
+
+    body = data.getVar(func, d)
+    if not body:
+        return
+
+    if not dirs:
+        dirs = (data.getVarFlag(func, 'dirs', d) or "").split()
+    for adir in dirs:
+        adir = data.expand(adir, d)
+        mkdirhier(adir)
+
+    if len(dirs) > 0:
+        adir = dirs[-1]
+    else:
+        adir = data.getVar('B', d, 1)
+
+    adir = data.expand(adir, d)
+
+    try:
+        prevdir = os.getcwd()
+    except OSError:
+        prevdir = data.expand('${TOPDIR}', d)
+    if adir and os.access(adir, os.F_OK):
+        os.chdir(adir)
+
+    if data.getVarFlag(func, "python", d):
+        exec_func_python(func, d)
+    else:
+        exec_func_shell(func, d)
+
+    if os.path.exists(prevdir):
+        os.chdir(prevdir)
+
+def exec_func_python(func, d):
+    """Execute a python BB 'function'"""
+    import re, os
+
+    tmp = "def " + func + "():\n%s" % data.getVar(func, d)
+    comp = compile(tmp + '\n' + func + '()', bb.data.getVar('FILE', d, 1) + ':' + func, "exec")
+    prevdir = os.getcwd()
+    g = {} # globals
+    g['bb'] = bb
+    g['os'] = os
+    g['d'] = d
+    exec comp in g
+    if os.path.exists(prevdir):
+        os.chdir(prevdir)
+
+def exec_func_shell(func, d):
+    """Execute a shell BB 'function' Returns true if execution was successful.
+
+    For this, it creates a bash shell script in the tmp dectory, writes the local
+    data into it and finally executes. The output of the shell will end in a log file and stdout.
+
+    Note on directory behavior.  The 'dirs' varflag should contain a list
+    of the directories you need created prior to execution.  The last
+    item in the list is where we will chdir/cd to.
+    """
+    import sys
+
+    deps = data.getVarFlag(func, 'deps', d)
+    check = data.getVarFlag(func, 'check', d)
+    if check in globals():
+        if globals()[check](func, deps):
+            return
+
+    global logfile
+    t = data.getVar('T', d, 1)
+    if not t:
+        return 0
+    mkdirhier(t)
+    logfile = "%s/log.%s.%s" % (t, func, str(os.getpid()))
+    runfile = "%s/run.%s.%s" % (t, func, str(os.getpid()))
+
+    f = open(runfile, "w")
+    f.write("#!/bin/sh -e\n")
+    if bb.debug_level > 0: f.write("set -x\n")
+    data.emit_env(f, d)
+
+    f.write("cd %s\n" % os.getcwd())
+    if func: f.write("%s\n" % func)
+    f.close()
+    os.chmod(runfile, 0775)
+    if not func:
+        error("Function not specified")
+        raise FuncFailed()
+
+    # open logs
+    si = file('/dev/null', 'r')
+    try:
+        if bb.debug_level > 0:
+            so = os.popen("tee \"%s\"" % logfile, "w")
+        else:
+            so = file(logfile, 'w')
+    except OSError, e:
+        bb.error("opening log file: %s" % e)
+        pass
+
+    se = so
+
+    # dup the existing fds so we dont lose them
+    osi = [os.dup(sys.stdin.fileno()), sys.stdin.fileno()]
+    oso = [os.dup(sys.stdout.fileno()), sys.stdout.fileno()]
+    ose = [os.dup(sys.stderr.fileno()), sys.stderr.fileno()]
+
+    # replace those fds with our own
+    os.dup2(si.fileno(), osi[1])
+    os.dup2(so.fileno(), oso[1])
+    os.dup2(se.fileno(), ose[1])
+
+    # execute function
+    prevdir = os.getcwd()
+    if data.getVarFlag(func, "fakeroot", d):
+        maybe_fakeroot = "PATH=\"%s\" fakeroot " % bb.data.getVar("PATH", d, 1)
+    else:
+        maybe_fakeroot = ''
+    ret = os.system('%ssh -e %s' % (maybe_fakeroot, runfile))
+    os.chdir(prevdir)
+
+    # restore the backups
+    os.dup2(osi[0], osi[1])
+    os.dup2(oso[0], oso[1])
+    os.dup2(ose[0], ose[1])
+
+    # close our logs
+    si.close()
+    so.close()
+    se.close()
+
+    # close the backup fds
+    os.close(osi[0])
+    os.close(oso[0])
+    os.close(ose[0])
+
+    if ret==0:
+        if bb.debug_level > 0:
+            os.remove(runfile)
+#            os.remove(logfile)
+        return
+    else:
+        error("function %s failed" % func)
+        if data.getVar("BBINCLUDELOGS", d):
+            error("log data follows (%s)" % logfile)
+            f = open(logfile, "r")
+            while True:
+                l = f.readline()
+                if l == '':
+                    break
+                l = l.rstrip()
+                print '| %s' % l
+            f.close()
+        else:
+            error("see log in %s" % logfile)
+        raise FuncFailed( logfile )
+
+
+def exec_task(task, d):
+    """Execute an BB 'task'
+
+       The primary difference between executing a task versus executing
+       a function is that a task exists in the task digraph, and therefore
+       has dependencies amongst other tasks."""
+
+    # check if the task is in the graph..
+    task_graph = data.getVar('_task_graph', d)
+    if not task_graph:
+        task_graph = bb.digraph()
+        data.setVar('_task_graph', task_graph, d)
+    task_cache = data.getVar('_task_cache', d)
+    if not task_cache:
+        task_cache = []
+        data.setVar('_task_cache', task_cache, d)
+    if not task_graph.hasnode(task):
+        raise EventException("Missing node in task graph", InvalidTask(task, d))
+
+    # check whether this task needs executing..
+    if not data.getVarFlag(task, 'force', d):
+        if stamp_is_current(task, d):
+            return 1
+
+    # follow digraph path up, then execute our way back down
+    def execute(graph, item):
+        if data.getVarFlag(item, 'task', d):
+            if item in task_cache:
+                return 1
+
+            if task != item:
+                # deeper than toplevel, exec w/ deps
+                exec_task(item, d)
+                return 1
+
+            try:
+                debug(1, "Executing task %s" % item)
+                old_overrides = data.getVar('OVERRIDES', d, 0)
+                localdata = data.createCopy(d)
+                data.setVar('OVERRIDES', 'task_%s:%s' % (item, old_overrides), localdata)
+                data.update_data(localdata)
+                event.fire(TaskStarted(item, localdata))
+                exec_func(item, localdata)
+                event.fire(TaskSucceeded(item, localdata))
+                task_cache.append(item)
+                data.setVar('_task_cache', task_cache, d)
+            except FuncFailed, reason:
+                note( "Task failed: %s" % reason )
+                failedevent = TaskFailed(item, d)
+                event.fire(failedevent)
+                raise EventException("Function failed in task: %s" % reason, failedevent)
+
+    # execute
+    task_graph.walkdown(task, execute)
+
+    # make stamp, or cause event and raise exception
+    if not data.getVarFlag(task, 'nostamp', d):
+        mkstamp(task, d)
+
+
+def stamp_is_current(task, d, checkdeps = 1):
+    """Check status of a given task's stamp. returns 0 if it is not current and needs updating."""
+    task_graph = data.getVar('_task_graph', d)
+    if not task_graph:
+        task_graph = bb.digraph()
+        data.setVar('_task_graph', task_graph, d)
+    stamp = data.getVar('STAMP', d)
+    if not stamp:
+        return 0
+    stampfile = "%s.%s" % (data.expand(stamp, d), task)
+    if not os.access(stampfile, os.F_OK):
+        return 0
+
+    if checkdeps == 0:
+        return 1
+
+    import stat
+    tasktime = os.stat(stampfile)[stat.ST_MTIME]
+
+    _deps = []
+    def checkStamp(graph, task):
+        # check for existance
+        if data.getVarFlag(task, 'nostamp', d):
+            return 1
+
+        if not stamp_is_current(task, d, 0):
+            return 0
+
+        depfile = "%s.%s" % (data.expand(stamp, d), task)
+        deptime = os.stat(depfile)[stat.ST_MTIME]
+        if deptime > tasktime:
+            return 0
+        return 1
+
+    return task_graph.walkdown(task, checkStamp)
+
+
+def md5_is_current(task):
+    """Check if a md5 file for a given task is current"""
+
+
+def mkstamp(task, d):
+    """Creates/updates a stamp for a given task"""
+    stamp = data.getVar('STAMP', d)
+    if not stamp:
+        return
+    stamp = "%s.%s" % (data.expand(stamp, d), task)
+    mkdirhier(os.path.dirname(stamp))
+    open(stamp, "w+")
+
+
+def add_task(task, deps, d):
+    task_graph = data.getVar('_task_graph', d)
+    if not task_graph:
+        task_graph = bb.digraph()
+    data.setVarFlag(task, 'task', 1, d)
+    task_graph.addnode(task, None)
+    for dep in deps:
+        if not task_graph.hasnode(dep):
+            task_graph.addnode(dep, None)
+        task_graph.addnode(task, dep)
+    # don't assume holding a reference
+    data.setVar('_task_graph', task_graph, d)
+
+
+def remove_task(task, kill, d):
+    """Remove an BB 'task'.
+
+       If kill is 1, also remove tasks that depend on this task."""
+
+    task_graph = data.getVar('_task_graph', d)
+    if not task_graph:
+        task_graph = bb.digraph()
+    if not task_graph.hasnode(task):
+        return
+
+    data.delVarFlag(task, 'task', d)
+    ref = 1
+    if kill == 1:
+        ref = 2
+    task_graph.delnode(task, ref)
+    data.setVar('_task_graph', task_graph, d)
+
+def task_exists(task, d):
+    task_graph = data.getVar('_task_graph', d)
+    if not task_graph:
+        task_graph = bb.digraph()
+        data.setVar('_task_graph', task_graph, d)
+    return task_graph.hasnode(task)
+
+def get_task_data():
+    return _task_data
diff --git a/bitbake/lib/bb/build.pyc b/bitbake/lib/bb/build.pyc
new file mode 100644
index 0000000000..556a68dc9b
--- /dev/null
+++ b/bitbake/lib/bb/build.pyc
diff --git a/bitbake/lib/bb/data.py b/bitbake/lib/bb/data.py
new file mode 100644
index 0000000000..b7d707a920
--- /dev/null
+++ b/bitbake/lib/bb/data.py
@@ -0,0 +1,580 @@
+#!/usr/bin/env python
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+"""
+BitBake 'Data' implementations
+
+Functions for interacting with the data structure used by the
+BitBake build tools.
+
+Copyright (C) 2003, 2004  Chris Larson
+Copyright (C) 2005        Holger Hans Peter Freyther
+
+This program is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free Software
+Foundation; either version 2 of the License, or (at your option) any later
+version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+Place, Suite 330, Boston, MA 02111-1307 USA. 
+
+Based on functions from the base bb module, Copyright 2003 Holger Schurig
+"""
+
+import sys, os, re, time, types
+if sys.argv[0][-5:] == "pydoc":
+    path = os.path.dirname(os.path.dirname(sys.argv[1]))
+else:
+    path = os.path.dirname(os.path.dirname(sys.argv[0]))
+sys.path.append(path)
+
+from bb import note, debug, data_smart
+
+_dict_type = data_smart.DataSmart
+_dict_p_type = data_smart.DataSmartPackage
+
+class DataDictFull(dict):
+    """
+    This implements our Package Data Storage Interface.
+    setDirty is a no op as all items are held in memory
+    """
+    def setDirty(self, bbfile, data):
+        """
+        No-Op we assume data was manipulated as some sort of
+        reference
+        """
+        if not bbfile in self:
+            raise Exception("File %s was not in dictionary before" % bbfile)
+
+        self[bbfile] = data
+
+class DataDictCache:
+    """
+    Databacked Dictionary implementation
+    """
+    def __init__(self, cache_dir, config):
+        self.cache_dir = cache_dir
+        self.files     = []
+        self.dirty     = {}
+        self.config    = config
+
+    def has_key(self,key):
+        return key in self.files
+
+    def keys(self):
+        return self.files
+
+    def __setitem__(self, key, data):
+        """
+        Add the key to the list of known files and
+        place the data in the cache?
+        """
+        if key in self.files:
+            return
+
+        self.files.append(key)
+
+    def __getitem__(self, key):
+        if not key in self.files:
+            return None
+
+        # if it was dirty we will
+        if key in self.dirty:
+            return self.dirty[key]
+
+        # not cached yet
+        return _dict_p_type(self.cache_dir, key,False,self.config)
+
+    def setDirty(self, bbfile, data):
+        """
+        Only already added items can be declared dirty!!!
+        """
+
+        if not bbfile in self.files:
+            raise Exception("File %s was not in dictionary before" % bbfile)
+
+        self.dirty[bbfile] = data
+
+
+
+def init():
+    return _dict_type()
+
+def init_db(cache,name,clean,parent = None):
+    return _dict_p_type(cache,name,clean,parent)
+
+def init_db_mtime(cache,cache_bbfile):
+    return _dict_p_type.mtime(cache,cache_bbfile)
+
+def pkgdata(use_cache, cache, config = None):
+    """
+    Return some sort of dictionary to lookup parsed dictionaires
+    """
+    if use_cache:
+        return DataDictCache(cache, config)
+    return DataDictFull()
+
+def createCopy(source):
+     """Link the source set to the destination
+     If one does not find the value in the destination set,
+     search will go on to the source set to get the value.
+     Value from source are copy-on-write. i.e. any try to
+     modify one of them will end up putting the modified value
+     in the destination set.
+     """
+     return source.createCopy()
+
+def initVar(var, d):
+    """Non-destructive var init for data structure"""
+    d.initVar(var)
+
+
+def setVar(var, value, d):
+    """Set a variable to a given value
+
+    Example:
+        >>> d = init()
+        >>> setVar('TEST', 'testcontents', d)
+        >>> print getVar('TEST', d)
+        testcontents
+    """
+    d.setVar(var,value)
+
+
+def getVar(var, d, exp = 0):
+    """Gets the value of a variable
+
+    Example:
+        >>> d = init()
+        >>> setVar('TEST', 'testcontents', d)
+        >>> print getVar('TEST', d)
+        testcontents
+    """
+    return d.getVar(var,exp)
+
+def delVar(var, d):
+    """Removes a variable from the data set
+
+    Example:
+        >>> d = init()
+        >>> setVar('TEST', 'testcontents', d)
+        >>> print getVar('TEST', d)
+        testcontents
+        >>> delVar('TEST', d)
+        >>> print getVar('TEST', d)
+        None
+    """
+    d.delVar(var)
+
+def setVarFlag(var, flag, flagvalue, d):
+    """Set a flag for a given variable to a given value
+
+    Example:
+        >>> d = init()
+        >>> setVarFlag('TEST', 'python', 1, d)
+        >>> print getVarFlag('TEST', 'python', d)
+        1
+    """
+    d.setVarFlag(var,flag,flagvalue)
+
+def getVarFlag(var, flag, d):
+    """Gets given flag from given var
+
+    Example:
+        >>> d = init()
+        >>> setVarFlag('TEST', 'python', 1, d)
+        >>> print getVarFlag('TEST', 'python', d)
+        1
+    """
+    return d.getVarFlag(var,flag)
+
+def delVarFlag(var, flag, d):
+    """Removes a given flag from the variable's flags
+
+    Example:
+        >>> d = init()
+        >>> setVarFlag('TEST', 'testflag', 1, d)
+        >>> print getVarFlag('TEST', 'testflag', d)
+        1
+        >>> delVarFlag('TEST', 'testflag', d)
+        >>> print getVarFlag('TEST', 'testflag', d)
+        None
+
+    """
+    d.delVarFlag(var,flag)
+
+def setVarFlags(var, flags, d):
+    """Set the flags for a given variable
+
+    Example:
+        >>> d = init()
+        >>> myflags = {}
+        >>> myflags['test'] = 'blah'
+        >>> setVarFlags('TEST', myflags, d)
+        >>> print getVarFlag('TEST', 'test', d)
+        blah
+    """
+    d.setVarFlags(var,flags)
+
+def getVarFlags(var, d):
+    """Gets a variable's flags
+
+    Example:
+        >>> d = init()
+        >>> setVarFlag('TEST', 'test', 'blah', d)
+        >>> print getVarFlags('TEST', d)['test']
+        blah
+    """
+    return d.getVarFlags(var)
+
+def delVarFlags(var, d):
+    """Removes a variable's flags
+
+    Example:
+        >>> data = init()
+        >>> setVarFlag('TEST', 'testflag', 1, data)
+        >>> print getVarFlag('TEST', 'testflag', data)
+        1
+        >>> delVarFlags('TEST', data)
+        >>> print getVarFlags('TEST', data)
+        None
+
+    """
+    d.delVarFlags(var)
+
+def keys(d):
+    """Return a list of keys in d
+
+    Example:
+        >>> d = init()
+        >>> setVar('TEST',  1, d)
+        >>> setVar('MOO' ,  2, d)
+        >>> setVarFlag('TEST', 'test', 1, d)
+        >>> keys(d)
+        ['TEST', 'MOO']
+    """
+    return d.keys()
+
+def getData(d):
+    """Returns the data object used"""
+    return d
+
+def setData(newData, d):
+    """Sets the data object to the supplied value"""
+    d = newData
+
+__expand_var_regexp__ = re.compile(r"\${[^{}]+}")
+__expand_python_regexp__ = re.compile(r"\${@.+?}")
+
+def expand(s, d, varname = None):
+    """Variable expansion using the data store.
+
+    Example:
+        Standard expansion:
+        >>> d = init()
+        >>> setVar('A', 'sshd', d)
+        >>> print expand('/usr/bin/${A}', d)
+        /usr/bin/sshd
+
+        Python expansion:
+        >>> d = init()
+        >>> print expand('result: ${@37 * 72}', d)
+        result: 2664
+
+        Shell expansion:
+        >>> d = init()
+        >>> print expand('${TARGET_MOO}', d)
+        ${TARGET_MOO}
+        >>> setVar('TARGET_MOO', 'yupp', d)
+        >>> print expand('${TARGET_MOO}',d)
+        yupp
+        >>> setVar('SRC_URI', 'http://somebug.${TARGET_MOO}', d)
+        >>> delVar('TARGET_MOO', d)
+        >>> print expand('${SRC_URI}', d)
+        http://somebug.${TARGET_MOO}
+    """
+    def var_sub(match):
+        key = match.group()[2:-1]
+        if varname and key:
+            if varname == key:
+                raise Exception("variable %s references itself!" % varname)
+        var = getVar(key, d, 1)
+        if var is not None:
+            return var
+        else:
+            return match.group()
+
+    def python_sub(match):
+        import bb
+        code = match.group()[3:-1]
+        locals()['d'] = d
+        s = eval(code)
+        if type(s) == types.IntType: s = str(s)
+        return s
+
+    if type(s) is not types.StringType: # sanity check
+        return s
+
+    while s.find('$') != -1:
+        olds = s
+        try:
+            s = __expand_var_regexp__.sub(var_sub, s)
+            s = __expand_python_regexp__.sub(python_sub, s)
+            if s == olds: break
+            if type(s) is not types.StringType: # sanity check
+                import bb
+                bb.error('expansion of %s returned non-string %s' % (olds, s))
+        except KeyboardInterrupt:
+            raise
+        except:
+            note("%s:%s while evaluating:\n%s" % (sys.exc_info()[0], sys.exc_info()[1], s))
+            raise
+    return s
+
+def expandKeys(alterdata, readdata = None):
+    if readdata == None:
+        readdata = alterdata
+
+    for key in keys(alterdata):
+        ekey = expand(key, readdata)
+        if key == ekey:
+            continue
+        val = getVar(key, alterdata)
+        if val is None:
+            continue
+#        import copy
+#        setVarFlags(ekey, copy.copy(getVarFlags(key, readdata)), alterdata)
+        setVar(ekey, val, alterdata)
+
+        for i in ('_append', '_prepend', '_delete'):
+            dest = getVarFlag(ekey, i, alterdata) or []
+            src = getVarFlag(key, i, readdata) or []
+            dest.extend(src)
+            setVarFlag(ekey, i, dest, alterdata)
+
+        delVar(key, alterdata)
+
+def expandData(alterdata, readdata = None):
+    """For each variable in alterdata, expand it, and update the var contents.
+       Replacements use data from readdata.
+
+    Example:
+        >>> a=init()
+        >>> b=init()
+        >>> setVar("dlmsg", "dl_dir is ${DL_DIR}", a)
+        >>> setVar("DL_DIR", "/path/to/whatever", b)
+        >>> expandData(a, b)
+        >>> print getVar("dlmsg", a)
+        dl_dir is /path/to/whatever
+       """
+    if readdata == None:
+        readdata = alterdata
+
+    for key in keys(alterdata):
+        val = getVar(key, alterdata)
+        if type(val) is not types.StringType:
+            continue
+        expanded = expand(val, readdata)
+#       print "key is %s, val is %s, expanded is %s" % (key, val, expanded)
+        if val != expanded:
+            setVar(key, expanded, alterdata)
+
+import os
+
+def inheritFromOS(d):
+    """Inherit variables from the environment."""
+#   fakeroot needs to be able to set these
+    non_inherit_vars = [ "LD_LIBRARY_PATH", "LD_PRELOAD" ]
+    for s in os.environ.keys():
+        if not s in non_inherit_vars:
+            try:
+                setVar(s, os.environ[s], d)
+                setVarFlag(s, 'matchesenv', '1', d)
+            except TypeError:
+                pass
+
+import sys
+
+def emit_var(var, o=sys.__stdout__, d = init(), all=False):
+    """Emit a variable to be sourced by a shell."""
+    if getVarFlag(var, "python", d):
+        return 0
+
+    try:
+        if all:
+            oval = getVar(var, d, 0)
+        val = getVar(var, d, 1)
+    except KeyboardInterrupt:
+        raise
+    except:
+        excname = str(sys.exc_info()[0])
+        if excname == "bb.build.FuncFailed":
+            raise
+        o.write('# expansion of %s threw %s\n' % (var, excname))
+        return 0
+
+    if all:
+        o.write('# %s=%s\n' % (var, oval))
+
+    if type(val) is not types.StringType:
+        return 0
+
+    if getVarFlag(var, 'matchesenv', d):
+        return 0
+
+    if (var.find("-") != -1 or var.find(".") != -1 or var.find('{') != -1 or var.find('}') != -1 or var.find('+') != -1) and not all:
+        return 0
+
+    val.rstrip()
+    if not val:
+        return 0
+
+    if getVarFlag(var, "func", d):
+#       NOTE: should probably check for unbalanced {} within the var
+        o.write("%s() {\n%s\n}\n" % (var, val))
+    else:
+        if getVarFlag(var, "export", d):
+            o.write('export ')
+        else:
+            if not all:
+                return 0
+#       if we're going to output this within doublequotes,
+#       to a shell, we need to escape the quotes in the var
+        alter = re.sub('"', '\\"', val.strip())
+        o.write('%s="%s"\n' % (var, alter))
+    return 1
+
+
+def emit_env(o=sys.__stdout__, d = init(), all=False):
+    """Emits all items in the data store in a format such that it can be sourced by a shell."""
+
+    env = keys(d)
+
+    for e in env:
+        if getVarFlag(e, "func", d):
+            continue
+        emit_var(e, o, d, all) and o.write('\n')
+
+    for e in env:
+        if not getVarFlag(e, "func", d):
+            continue
+        emit_var(e, o, d) and o.write('\n')
+
+def update_data(d):
+    """Modifies the environment vars according to local overrides and commands.
+    Examples:
+        Appending to a variable:
+        >>> d = init()
+        >>> setVar('TEST', 'this is a', d)
+        >>> setVar('TEST_append', ' test', d)
+        >>> setVar('TEST_append', ' of the emergency broadcast system.', d)
+        >>> update_data(d)
+        >>> print getVar('TEST', d)
+        this is a test of the emergency broadcast system.
+
+        Prepending to a variable:
+        >>> setVar('TEST', 'virtual/libc', d)
+        >>> setVar('TEST_prepend', 'virtual/tmake ', d)
+        >>> setVar('TEST_prepend', 'virtual/patcher ', d)
+        >>> update_data(d)
+        >>> print getVar('TEST', d)
+        virtual/patcher virtual/tmake virtual/libc
+
+        Overrides:
+        >>> setVar('TEST_arm', 'target', d)
+        >>> setVar('TEST_ramses', 'machine', d)
+        >>> setVar('TEST_local', 'local', d)
+        >>> setVar('OVERRIDES', 'arm', d)
+
+        >>> setVar('TEST', 'original', d)
+        >>> update_data(d)
+        >>> print getVar('TEST', d)
+        target
+
+        >>> setVar('OVERRIDES', 'arm:ramses:local', d)
+        >>> setVar('TEST', 'original', d)
+        >>> update_data(d)
+        >>> print getVar('TEST', d)
+        local
+    """
+
+    debug(2, "update_data()")
+
+#   can't do delete env[...] while iterating over the dictionary, so remember them
+    dodel = []
+    overrides = (getVar('OVERRIDES', d, 1) or "").split(':') or []
+
+    def applyOverrides(var, d):
+        if not overrides:
+            debug(1, "OVERRIDES not defined, nothing to do")
+            return
+        val = getVar(var, d)
+        for o in overrides:
+            if var.endswith("_" + o):
+                l = len(o)+1
+                name = var[:-l]
+                d[name] = d[var]
+
+    for s in keys(d):
+        applyOverrides(s, d)
+        sval = getVar(s, d) or ""
+
+#       Handle line appends:
+        for (a, o) in getVarFlag(s, '_append', d) or []:
+            # maybe the OVERRIDE was not yet added so keep the append
+            if (o and o in overrides) or not o:
+                delVarFlag(s, '_append', d)
+            if o:
+                if not o in overrides:
+                    continue
+            sval+=a
+            setVar(s, sval, d)
+
+#       Handle line prepends
+        for (a, o) in getVarFlag(s, '_prepend', d) or []:
+            # maybe the OVERRIDE was not yet added so keep the append
+            if (o and o in overrides) or not o:
+                delVarFlag(s, '_prepend', d)
+            if o:
+                if not o in overrides:
+                    continue
+            sval=a+sval
+            setVar(s, sval, d)
+
+#       Handle line deletions
+        name = s + "_delete"
+        nameval = getVar(name, d)
+        if nameval:
+            sval = getVar(s, d)
+            if sval:
+                new = ''
+                pattern = nameval.replace('\n','').strip()
+                for line in sval.split('\n'):
+                    if line.find(pattern) == -1:
+                        new = new + '\n' + line
+                setVar(s, new, d)
+                dodel.append(name)
+
+#   delete all environment vars no longer needed
+    for s in dodel:
+        delVar(s, d)
+
+def inherits_class(klass, d):
+    val = getVar('__inherit_cache', d) or ""
+    if os.path.join('classes', '%s.bbclass' % klass) in val.split():
+        return True
+    return False
+
+def _test():
+    """Start a doctest run on this module"""
+    import doctest
+    from bb import data
+    doctest.testmod(data)
+
+if __name__ == "__main__":
+    _test()
diff --git a/bitbake/lib/bb/data.pyc b/bitbake/lib/bb/data.pyc
new file mode 100644
index 0000000000..4b729e021f
--- /dev/null
+++ b/bitbake/lib/bb/data.pyc
diff --git a/bitbake/lib/bb/data_dict.pyc b/bitbake/lib/bb/data_dict.pyc
new file mode 100644
index 0000000000..16c6ea141e
--- /dev/null
+++ b/bitbake/lib/bb/data_dict.pyc
diff --git a/bitbake/lib/bb/data_smart.py b/bitbake/lib/bb/data_smart.py
new file mode 100644
index 0000000000..741790502f
--- /dev/null
+++ b/bitbake/lib/bb/data_smart.py
@@ -0,0 +1,351 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+"""
+BitBake Smart Dictionary Implementation
+
+Functions for interacting with the data structure used by the
+BitBake build tools.
+
+Copyright (C) 2003, 2004  Chris Larson
+Copyright (C) 2004, 2005  Seb Frankengul
+Copyright (C) 2005        Holger Hans Peter Freyther
+Copyright (C) 2005        Uli Luckas
+Copyright (C) 2005        ROAD GmbH
+
+This program is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free Software
+Foundation; either version 2 of the License, or (at your option) any later
+version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+Place, Suite 330, Boston, MA 02111-1307 USA. 
+
+Based on functions from the base bb module, Copyright 2003 Holger Schurig
+"""
+
+import copy, os, re, sys, time, types
+from   bb import note, debug, fatal
+
+try:
+    import cPickle as pickle
+except ImportError:
+    import pickle
+    print "NOTE: Importing cPickle failed. Falling back to a very slow implementation."
+
+
+__setvar_keyword__ = ["_append","_prepend","_delete"]
+__setvar_regexp__ = re.compile('(?P<base>.*?)(?P<keyword>_append|_prepend|_delete)(_(?P<add>.*))?')
+__expand_var_regexp__ = re.compile(r"\${[^{}]+}")
+__expand_python_regexp__ = re.compile(r"\${@.+?}")
+
+
+class DataSmart:
+    def __init__(self):
+        self.dict = {}
+
+    def expand(self,s, varname):
+        def var_sub(match):
+            key = match.group()[2:-1]
+            if varname and key:
+                if varname == key:
+                    raise Exception("variable %s references itself!" % varname)
+            var = self.getVar(key, 1)
+            if var is not None:
+                return var
+            else:
+                return match.group()
+
+        def python_sub(match):
+            import bb
+            code = match.group()[3:-1]
+            locals()['d'] = self
+            s = eval(code)
+            if type(s) == types.IntType: s = str(s)
+            return s
+
+        if type(s) is not types.StringType: # sanity check
+            return s
+
+        while s.find('$') != -1:
+            olds = s
+            try:
+                s = __expand_var_regexp__.sub(var_sub, s)
+                s = __expand_python_regexp__.sub(python_sub, s)
+                if s == olds: break
+                if type(s) is not types.StringType: # sanity check
+                    import bb
+                    bb.error('expansion of %s returned non-string %s' % (olds, s))
+            except KeyboardInterrupt:
+                raise
+            except:
+                note("%s:%s while evaluating:\n%s" % (sys.exc_info()[0], sys.exc_info()[1], s))
+                raise
+        return s
+
+    def initVar(self, var):
+        if not var in self.dict:
+            self.dict[var] = {}
+
+    def pickle_prep(self, cfg):
+        if "_data" in self.dict:
+            if self.dict["_data"] == cfg:
+                self.dict["_data"] = "cfg";
+            else: # this is an unknown array for the moment
+                pass
+
+    def unpickle_prep(self, cfg):
+        if "_data" in self.dict:
+            if self.dict["_data"] == "cfg":
+                self.dict["_data"] = cfg;
+
+    def _findVar(self,var):
+        _dest = self.dict
+
+        while (_dest and var not in _dest):
+            if not "_data" in _dest:
+                _dest = None
+                break
+            _dest = _dest["_data"]
+
+        if _dest and var in _dest:
+            return _dest[var]
+        return None
+
+    def _copyVar(self,var,name):
+        local_var = self._findVar(var)
+        if local_var:
+            self.dict[name] = copy.copy(local_var)
+        else:
+            debug(1,"Warning, _copyVar %s to %s, %s does not exists" % (var,name,var))
+
+
+    def _makeShadowCopy(self, var):
+        if var in self.dict:
+            return
+
+        local_var = self._findVar(var)
+
+        if local_var:
+            self.dict[var] = copy.copy(local_var)
+        else:
+            self.initVar(var)
+
+    def setVar(self,var,value):
+        match  = __setvar_regexp__.match(var)
+        if match and match.group("keyword") in __setvar_keyword__:
+            base = match.group('base')
+            keyword = match.group("keyword")
+            override = match.group('add')
+            l = self.getVarFlag(base, keyword) or []
+            if override == 'delete':
+                if l.count([value, None]):
+                    del l[l.index([value, None])]
+            l.append([value, override])
+            self.setVarFlag(base, match.group("keyword"), l)
+            return
+
+        if not var in self.dict:
+            self._makeShadowCopy(var)
+        if self.getVarFlag(var, 'matchesenv'):
+            self.delVarFlag(var, 'matchesenv')
+            self.setVarFlag(var, 'export', 1)
+
+        # setting var
+        self.dict[var]["content"] = value
+
+    def getVar(self,var,exp):
+        value = self.getVarFlag(var,"content")
+
+        if exp and value:
+            return self.expand(value,var)
+        return value
+
+    def delVar(self,var):
+        self.dict[var] = {}
+
+    def setVarFlag(self,var,flag,flagvalue):
+        if not var in self.dict:
+            self._makeShadowCopy(var)
+        self.dict[var][flag] = flagvalue
+
+    def getVarFlag(self,var,flag):
+        local_var = self._findVar(var)
+        if local_var:
+            if flag in local_var:
+                return copy.copy(local_var[flag])
+        return None
+
+    def delVarFlag(self,var,flag):
+        local_var = self._findVar(var)
+        if not local_var:
+            return
+        if not var in self.dict:
+            self._makeShadowCopy(var)
+
+        if var in self.dict and flag in self.dict[var]:
+            del self.dict[var][flag]
+
+    def setVarFlags(self,var,flags):
+        if not var in self.dict:
+            self._makeShadowCopy(var)
+
+        for i in flags.keys():
+            if i == "content":
+                continue
+            self.dict[var][i] = flags[i]
+
+    def getVarFlags(self,var):
+        local_var = self._findVar(var)
+        flags = {}
+
+        if local_var:
+            for i in self.dict[var].keys():
+                if i == "content":
+                    continue
+                flags[i] = self.dict[var][i]
+
+        if len(flags) == 0:
+            return None
+        return flags
+
+
+    def delVarFlags(self,var):
+        if not var in self.dict:
+            self._makeShadowCopy(var)
+
+        if var in self.dict:
+            content = None
+
+            # try to save the content
+            if "content" in self.dict[var]:
+                content  = self.dict[var]["content"]
+                self.dict[var]            = {}
+                self.dict[var]["content"] = content
+            else:
+                del self.dict[var]
+
+
+    def createCopy(self):
+        """
+        Create a copy of self by setting _data to self
+        """
+        # we really want this to be a DataSmart...
+        data = DataSmart()
+        data.dict["_data"] = self.dict
+
+        return data
+
+    # Dictionary Methods
+    def keys(self):
+        def _keys(d, mykey):
+            if "_data" in d:
+                _keys(d["_data"],mykey)
+
+            for key in d.keys():
+                if key != "_data":
+                    mykey[key] = None
+        keytab = {}
+        _keys(self.dict,keytab)
+        return keytab.keys()
+
+    def __getitem__(self,item):
+        start = self.dict
+        while start:
+            if item in start:
+                return start[item]
+            elif "_data" in start:
+                start = start["_data"]
+            else:
+                start = None
+        return None
+
+    def __setitem__(self,var,data):
+        self._makeShadowCopy(var)
+        self.dict[var] = data
+
+
+class DataSmartPackage(DataSmart):
+    """
+    Persistent Data Storage
+    """
+    def sanitize_filename(bbfile):
+        return bbfile.replace( '/', '_' )
+    sanitize_filename = staticmethod(sanitize_filename)
+
+    def unpickle(self):
+        """
+        Restore the dict from memory
+        """
+        cache_bbfile = self.sanitize_filename(self.bbfile)
+        p = pickle.Unpickler( file("%s/%s"%(self.cache,cache_bbfile),"rb"))
+        self.dict = p.load()
+        self.unpickle_prep()
+        funcstr = self.getVar('__functions__', 0)
+        if funcstr:
+            comp = compile(funcstr, "<pickled>", "exec")
+            exec comp in  __builtins__
+
+    def linkDataSet(self):
+        if not self.parent == None:
+            # assume parent is a DataSmartInstance
+            self.dict["_data"] = self.parent.dict
+
+
+    def __init__(self,cache,name,clean,parent):
+        """
+        Construct a persistent data instance
+        """
+        #Initialize the dictionary
+        DataSmart.__init__(self)
+
+        self.cache  = cache
+        self.bbfile = os.path.abspath( name )
+        self.parent = parent
+
+        # Either unpickle the data or do copy on write
+        if clean:
+            self.linkDataSet()
+        else:
+            self.unpickle()
+
+    def commit(self, mtime):
+        """
+        Save the package to a permanent storage
+        """
+        self.pickle_prep()
+
+        cache_bbfile = self.sanitize_filename(self.bbfile)
+        p = pickle.Pickler(file("%s/%s" %(self.cache,cache_bbfile), "wb" ), -1 )
+        p.dump( self.dict )
+
+        self.unpickle_prep()
+
+    def mtime(cache,bbfile):
+        cache_bbfile = DataSmartPackage.sanitize_filename(bbfile)
+        try:
+            return os.stat( "%s/%s" % (cache,cache_bbfile) )[8]
+        except OSError:
+            return 0
+    mtime = staticmethod(mtime)
+
+    def pickle_prep(self):
+        """
+        If self.dict contains a _data key and it is a configuration
+        we will remember we had a configuration instance attached
+        """
+        if "_data" in self.dict:
+            if self.dict["_data"] == self.parent:
+                dest["_data"] = "cfg"
+
+    def unpickle_prep(self):
+        """
+        If we had a configuration instance attached, we will reattach it
+        """
+        if "_data" in self.dict:
+            if self.dict["_data"] == "cfg":
+                self.dict["_data"] = self.parent
diff --git a/bitbake/lib/bb/data_smart.pyc b/bitbake/lib/bb/data_smart.pyc
new file mode 100644
index 0000000000..0f6996a301
--- /dev/null
+++ b/bitbake/lib/bb/data_smart.pyc
diff --git a/bitbake/lib/bb/event.py b/bitbake/lib/bb/event.py
new file mode 100644
index 0000000000..c4e88fa35d
--- /dev/null
+++ b/bitbake/lib/bb/event.py
@@ -0,0 +1,210 @@
+#!/usr/bin/env python
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+"""
+BitBake 'Event' implementation
+
+Classes and functions for manipulating 'events' in the
+BitBake build tools.
+
+Copyright (C) 2003, 2004  Chris Larson
+
+This program is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free Software
+Foundation; either version 2 of the License, or (at your option) any later
+version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+Place, Suite 330, Boston, MA 02111-1307 USA. 
+"""
+
+import os, re
+import bb.data
+
+class Event:
+    """Base class for events"""
+    type = "Event"
+
+    def __init__(self, d = bb.data.init()):
+        self._data = d
+
+    def getData(self):
+        return self._data
+
+    def setData(self, data):
+        self._data = data
+
+    data = property(getData, setData, None, "data property")
+
+NotHandled = 0
+Handled = 1
+handlers = []
+
+def tmpHandler(event):
+    """Default handler for code events"""
+    return NotHandled
+
+def defaultTmpHandler():
+    tmp = "def tmpHandler(e):\n\t\"\"\"heh\"\"\"\n\treturn 0"
+    comp = compile(tmp, "tmpHandler(e)", "exec")
+    return comp
+
+def fire(event):
+    """Fire off an Event"""
+    for h in handlers:
+        if type(h).__name__ == "code":
+            exec(h)
+            if tmpHandler(event) == Handled:
+                return Handled
+        else:
+            if h(event) == Handled:
+                return Handled
+    return NotHandled
+
+def register(handler):
+    """Register an Event handler"""
+    if handler is not None:
+#       handle string containing python code
+        if type(handler).__name__ == "str":
+            return registerCode(handler)
+#       prevent duplicate registration
+        if not handler in handlers:
+            handlers.append(handler)
+
+def registerCode(handlerStr):
+    """Register a 'code' Event.
+       Deprecated interface; call register instead.
+
+       Expects to be passed python code as a string, which will
+       be passed in turn to compile() and then exec().  Note that
+       the code will be within a function, so should have had
+       appropriate tabbing put in place."""
+    tmp = "def tmpHandler(e):\n%s" % handlerStr
+    comp = compile(tmp, "tmpHandler(e)", "exec")
+#   prevent duplicate registration
+    if not comp in handlers:
+        handlers.append(comp)
+
+def remove(handler):
+    """Remove an Event handler"""
+    for h in handlers:
+        if type(handler).__name__ == "str":
+            return removeCode(handler)
+
+        if handler is h:
+            handlers.remove(handler)
+
+def removeCode(handlerStr):
+    """Remove a 'code' Event handler
+       Deprecated interface; call remove instead."""
+    tmp = "def tmpHandler(e):\n%s" % handlerStr
+    comp = compile(tmp, "tmpHandler(e)", "exec")
+    handlers.remove(comp)
+
+def getName(e):
+    """Returns the name of a class or class instance"""
+    if getattr(e, "__name__", None) == None:
+        return e.__class__.__name__
+    else:
+        return e.__name__
+
+
+class PkgBase(Event):
+    """Base class for package events"""
+
+    def __init__(self, t, d = {}):
+        self._pkg = t
+        Event.__init__(self, d)
+
+    def getPkg(self):
+        return self._pkg
+
+    def setPkg(self, pkg):
+        self._pkg = pkg
+
+    pkg = property(getPkg, setPkg, None, "pkg property")
+
+
+class BuildBase(Event):
+    """Base class for bbmake run events"""
+
+    def __init__(self, n, p, c):
+        self._name = n
+        self._pkgs = p
+        Event.__init__(self, c)
+
+    def getPkgs(self):
+        return self._pkgs
+
+    def setPkgs(self, pkgs):
+        self._pkgs = pkgs
+
+    def getName(self):
+        return self._name
+
+    def setName(self, name):
+        self._name = name
+
+    def getCfg(self):
+        return self.data
+
+    def setCfg(self, cfg):
+        self.data = cfg
+
+    pkgs = property(getPkgs, setPkgs, None, "pkgs property")
+    name = property(getName, setName, None, "name property")
+    cfg = property(getCfg, setCfg, None, "cfg property")
+
+
+class DepBase(PkgBase):
+    """Base class for dependency events"""
+
+    def __init__(self, t, data, d):
+        self._dep = d
+        PkgBase.__init__(self, t, data)
+
+    def getDep(self):
+        return self._dep
+
+    def setDep(self, dep):
+        self._dep = dep
+
+    dep = property(getDep, setDep, None, "dep property")
+
+
+class PkgStarted(PkgBase):
+    """Package build started"""
+
+
+class PkgFailed(PkgBase):
+    """Package build failed"""
+
+
+class PkgSucceeded(PkgBase):
+    """Package build completed"""
+
+
+class BuildStarted(BuildBase):
+    """bbmake build run started"""
+
+
+class BuildCompleted(BuildBase):
+    """bbmake build run completed"""
+
+
+class UnsatisfiedDep(DepBase):
+    """Unsatisfied Dependency"""
+
+
+class RecursiveDep(DepBase):
+    """Recursive Dependency"""
+
+
+class MultipleProviders(PkgBase):
+    """Multiple Providers"""
+
diff --git a/bitbake/lib/bb/event.pyc b/bitbake/lib/bb/event.pyc
new file mode 100644
index 0000000000..b6ed391811
--- /dev/null
+++ b/bitbake/lib/bb/event.pyc
diff --git a/bitbake/lib/bb/fetch.py b/bitbake/lib/bb/fetch.py
new file mode 100644
index 0000000000..982ab51b76
--- /dev/null
+++ b/bitbake/lib/bb/fetch.py
@@ -0,0 +1,656 @@
+#!/usr/bin/env python
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+"""
+BitBake 'Fetch' implementations
+
+Classes for obtaining upstream sources for the
+BitBake build tools.
+
+Copyright (C) 2003, 2004  Chris Larson
+
+This program is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free Software
+Foundation; either version 2 of the License, or (at your option) any later
+version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+Place, Suite 330, Boston, MA 02111-1307 USA. 
+
+Based on functions from the base bb module, Copyright 2003 Holger Schurig
+"""
+
+import os, re
+import bb
+from   bb import data
+
+class FetchError(Exception):
+    """Exception raised when a download fails"""
+
+class NoMethodError(Exception):
+    """Exception raised when there is no method to obtain a supplied url or set of urls"""
+
+class MissingParameterError(Exception):
+    """Exception raised when a fetch method is missing a critical parameter in the url"""
+
+class MD5SumError(Exception):
+    """Exception raised when a MD5SUM of a file does not match the expected one"""
+
+def uri_replace(uri, uri_find, uri_replace, d):
+#   bb.note("uri_replace: operating on %s" % uri)
+    if not uri or not uri_find or not uri_replace:
+        bb.debug(1, "uri_replace: passed an undefined value, not replacing")
+    uri_decoded = list(bb.decodeurl(uri))
+    uri_find_decoded = list(bb.decodeurl(uri_find))
+    uri_replace_decoded = list(bb.decodeurl(uri_replace))
+    result_decoded = ['','','','','',{}]
+    for i in uri_find_decoded:
+        loc = uri_find_decoded.index(i)
+        result_decoded[loc] = uri_decoded[loc]
+        import types
+        if type(i) == types.StringType:
+            import re
+            if (re.match(i, uri_decoded[loc])):
+                result_decoded[loc] = re.sub(i, uri_replace_decoded[loc], uri_decoded[loc])
+                if uri_find_decoded.index(i) == 2:
+                    if d:
+                        localfn = bb.fetch.localpath(uri, d)
+                        if localfn:
+                            result_decoded[loc] = os.path.dirname(result_decoded[loc]) + "/" + os.path.basename(bb.fetch.localpath(uri, d))
+#                       bb.note("uri_replace: matching %s against %s and replacing with %s" % (i, uri_decoded[loc], uri_replace_decoded[loc]))
+            else:
+#               bb.note("uri_replace: no match")
+                return uri
+#           else:
+#               for j in i.keys():
+#                   FIXME: apply replacements against options
+    return bb.encodeurl(result_decoded)
+
+methods = []
+
+def init(urls = [], d = None):
+    if d == None:
+        bb.debug(2,"BUG init called with None as data object!!!")
+        return
+
+    for m in methods:
+        m.urls = []
+
+    for u in urls:
+        for m in methods:
+            m.data = d
+            if m.supports(u, d):
+                m.urls.append(u)
+
+def go(d):
+    """Fetch all urls"""
+    for m in methods:
+        if m.urls:
+            m.go(d)
+
+def localpaths(d):
+    """Return a list of the local filenames, assuming successful fetch"""
+    local = []
+    for m in methods:
+        for u in m.urls:
+            local.append(m.localpath(u, d))
+    return local
+
+def localpath(url, d):
+    for m in methods:
+        if m.supports(url, d):
+            return m.localpath(url, d)
+    return url
+
+class Fetch(object):
+    """Base class for 'fetch'ing data"""
+
+    def __init__(self, urls = []):
+        self.urls = []
+        for url in urls:
+            if self.supports(bb.decodeurl(url), d) is 1:
+                self.urls.append(url)
+
+    def supports(url, d):
+        """Check to see if this fetch class supports a given url.
+           Expects supplied url in list form, as outputted by bb.decodeurl().
+        """
+        return 0
+    supports = staticmethod(supports)
+
+    def localpath(url, d):
+        """Return the local filename of a given url assuming a successful fetch.
+        """
+        return url
+    localpath = staticmethod(localpath)
+
+    def setUrls(self, urls):
+        self.__urls = urls
+
+    def getUrls(self):
+        return self.__urls
+
+    urls = property(getUrls, setUrls, None, "Urls property")
+
+    def setData(self, data):
+        self.__data = data
+
+    def getData(self):
+        return self.__data
+
+    data = property(getData, setData, None, "Data property")
+
+    def go(self, urls = []):
+        """Fetch urls"""
+        raise NoMethodError("Missing implementation for url")
+
+class Wget(Fetch):
+    """Class to fetch urls via 'wget'"""
+    def supports(url, d):
+        """Check to see if a given url can be fetched using wget.
+           Expects supplied url in list form, as outputted by bb.decodeurl().
+        """
+        (type, host, path, user, pswd, parm) = bb.decodeurl(data.expand(url, d))
+        return type in ['http','https','ftp']
+    supports = staticmethod(supports)
+
+    def localpath(url, d):
+#       strip off parameters
+        (type, host, path, user, pswd, parm) = bb.decodeurl(data.expand(url, d))
+        if "localpath" in parm:
+#           if user overrides local path, use it.
+            return parm["localpath"]
+        url = bb.encodeurl([type, host, path, user, pswd, {}])
+
+        return os.path.join(data.getVar("DL_DIR", d), os.path.basename(url))
+    localpath = staticmethod(localpath)
+
+    def go(self, d, urls = []):
+        """Fetch urls"""
+
+        def md5_sum(basename, data):
+            """
+            Fast and incomplete OVERRIDE implementation for MD5SUM handling
+            MD5SUM_basename = "SUM" and fallback to MD5SUM_basename
+            """
+            var = "MD5SUM_%s" % basename
+            return getVar(var, data) or get("MD5SUM",data)
+
+
+        def fetch_uri(uri, basename, dl, md5, parm, d):
+            if os.path.exists(dl):
+#               file exists, but we didnt complete it.. trying again..
+                fetchcmd = data.getVar("RESUMECOMMAND", d, 1)
+            else:
+                fetchcmd = data.getVar("FETCHCOMMAND", d, 1)
+
+            bb.note("fetch " + uri)
+            fetchcmd = fetchcmd.replace("${URI}", uri)
+            fetchcmd = fetchcmd.replace("${FILE}", basename)
+            bb.debug(2, "executing " + fetchcmd)
+            ret = os.system(fetchcmd)
+            if ret != 0:
+                return False
+
+            # check if sourceforge did send us to the mirror page
+            dl_dir = data.getVar("DL_DIR", d, True)
+            if not os.path.exists(dl):
+                os.system("rm %s*" % dl) # FIXME shell quote it
+                bb.debug(2,"sourceforge.net send us to the mirror on %s" % basename)
+                return False
+
+#           supposedly complete.. write out md5sum
+            if bb.which(data.getVar('PATH', d), 'md5sum'):
+                try:
+                    md5pipe = os.popen('md5sum ' + dl)
+                    md5data = (md5pipe.readline().split() or [ "" ])[0]
+                    md5pipe.close()
+                except OSError:
+                    md5data = ""
+                md5out = file(md5, 'w')
+                md5out.write(md5data)
+                md5out.close()
+            else:
+                md5out = file(md5, 'w')
+                md5out.write("")
+                md5out.close()
+            return True
+
+        if not urls:
+            urls = self.urls
+
+        localdata = data.createCopy(d)
+        data.setVar('OVERRIDES', "wget:" + data.getVar('OVERRIDES', localdata), localdata)
+        data.update_data(localdata)
+
+        for uri in urls:
+            completed = 0
+            (type, host, path, user, pswd, parm) = bb.decodeurl(data.expand(uri, localdata))
+            basename = os.path.basename(path)
+            dl = self.localpath(uri, d)
+            dl = data.expand(dl, localdata)
+            md5 = dl + '.md5'
+
+            if os.path.exists(md5):
+#               complete, nothing to see here..
+                continue
+
+            premirrors = [ i.split() for i in (data.getVar('PREMIRRORS', localdata, 1) or "").split('\n') if i ]
+            for (find, replace) in premirrors:
+                newuri = uri_replace(uri, find, replace, d)
+                if newuri != uri:
+                    if fetch_uri(newuri, basename, dl, md5, parm, localdata):
+                        completed = 1
+                        break
+
+            if completed:
+                continue
+
+            if fetch_uri(uri, basename, dl, md5, parm, localdata):
+                continue
+
+#           try mirrors
+            mirrors = [ i.split() for i in (data.getVar('MIRRORS', localdata, 1) or "").split('\n') if i ]
+            for (find, replace) in mirrors:
+                newuri = uri_replace(uri, find, replace, d)
+                if newuri != uri:
+                    if fetch_uri(newuri, basename, dl, md5, parm, localdata):
+                        completed = 1
+                        break
+
+            if not completed:
+                raise FetchError(uri)
+
+        del localdata
+
+
+methods.append(Wget())
+
+class Cvs(Fetch):
+    """Class to fetch a module or modules from cvs repositories"""
+    def supports(url, d):
+        """Check to see if a given url can be fetched with cvs.
+           Expects supplied url in list form, as outputted by bb.decodeurl().
+        """
+        (type, host, path, user, pswd, parm) = bb.decodeurl(data.expand(url, d))
+        return type in ['cvs', 'pserver']
+    supports = staticmethod(supports)
+
+    def localpath(url, d):
+        (type, host, path, user, pswd, parm) = bb.decodeurl(data.expand(url, d))
+        if "localpath" in parm:
+#           if user overrides local path, use it.
+            return parm["localpath"]
+
+        if not "module" in parm:
+            raise MissingParameterError("cvs method needs a 'module' parameter")
+        else:
+            module = parm["module"]
+        if 'tag' in parm:
+            tag = parm['tag']
+        else:
+            tag = ""
+        if 'date' in parm:
+            date = parm['date']
+        else:
+            if not tag:
+                date = data.getVar("CVSDATE", d, 1) or data.getVar("DATE", d, 1)
+            else:
+                date = ""
+
+        return os.path.join(data.getVar("DL_DIR", d, 1),data.expand('%s_%s_%s_%s.tar.gz' % ( module.replace('/', '.'), host, tag, date), d))
+    localpath = staticmethod(localpath)
+
+    def go(self, d, urls = []):
+        """Fetch urls"""
+        if not urls:
+            urls = self.urls
+
+        localdata = data.createCopy(d)
+        data.setVar('OVERRIDES', "cvs:%s" % data.getVar('OVERRIDES', localdata), localdata)
+        data.update_data(localdata)
+
+        for loc in urls:
+            (type, host, path, user, pswd, parm) = bb.decodeurl(data.expand(loc, localdata))
+            if not "module" in parm:
+                raise MissingParameterError("cvs method needs a 'module' parameter")
+            else:
+                module = parm["module"]
+
+            dlfile = self.localpath(loc, localdata)
+            dldir = data.getVar('DL_DIR', localdata, 1)
+#           if local path contains the cvs
+#           module, consider the dir above it to be the
+#           download directory
+#           pos = dlfile.find(module)
+#           if pos:
+#               dldir = dlfile[:pos]
+#           else:
+#               dldir = os.path.dirname(dlfile)
+
+#           setup cvs options
+            options = []
+            if 'tag' in parm:
+                tag = parm['tag']
+            else:
+                tag = ""
+
+            if 'date' in parm:
+                date = parm['date']
+            else:
+                if not tag:
+                    date = data.getVar("CVSDATE", d, 1) or data.getVar("DATE", d, 1)
+                else:
+                    date = ""
+
+            if "method" in parm:
+                method = parm["method"]
+            else:
+                method = "pserver"
+
+            if "localdir" in parm:
+                localdir = parm["localdir"]
+            else:
+                localdir = module
+
+            cvs_rsh = None
+            if method == "ext":
+                if "rsh" in parm:
+                    cvs_rsh = parm["rsh"]
+
+            tarfn = data.expand('%s_%s_%s_%s.tar.gz' % (module.replace('/', '.'), host, tag, date), localdata)
+            data.setVar('TARFILES', dlfile, localdata)
+            data.setVar('TARFN', tarfn, localdata)
+
+            dl = os.path.join(dldir, tarfn)
+            if os.access(dl, os.R_OK):
+                bb.debug(1, "%s already exists, skipping cvs checkout." % tarfn)
+                continue
+
+            pn = data.getVar('PN', d, 1)
+            cvs_tarball_stash = None
+            if pn:
+                cvs_tarball_stash = data.getVar('CVS_TARBALL_STASH_%s' % pn, d, 1)
+            if cvs_tarball_stash == None:
+                cvs_tarball_stash = data.getVar('CVS_TARBALL_STASH', d, 1)
+            if cvs_tarball_stash:
+                fetchcmd = data.getVar("FETCHCOMMAND_wget", d, 1)
+                uri = cvs_tarball_stash + tarfn
+                bb.note("fetch " + uri)
+                fetchcmd = fetchcmd.replace("${URI}", uri)
+                ret = os.system(fetchcmd)
+                if ret == 0:
+                    bb.note("Fetched %s from tarball stash, skipping checkout" % tarfn)
+                    continue
+
+            if date:
+                options.append("-D %s" % date)
+            if tag:
+                options.append("-r %s" % tag)
+
+            olddir = os.path.abspath(os.getcwd())
+            os.chdir(data.expand(dldir, localdata))
+
+#           setup cvsroot
+            if method == "dir":
+                cvsroot = path
+            else:
+                cvsroot = ":" + method + ":" + user
+                if pswd:
+                    cvsroot += ":" + pswd
+                cvsroot += "@" + host + ":" + path
+
+            data.setVar('CVSROOT', cvsroot, localdata)
+            data.setVar('CVSCOOPTS', " ".join(options), localdata)
+            data.setVar('CVSMODULE', module, localdata)
+            cvscmd = data.getVar('FETCHCOMMAND', localdata, 1)
+            cvsupdatecmd = data.getVar('UPDATECOMMAND', localdata, 1)
+
+            if cvs_rsh:
+                cvscmd = "CVS_RSH=\"%s\" %s" % (cvs_rsh, cvscmd)
+                cvsupdatecmd = "CVS_RSH=\"%s\" %s" % (cvs_rsh, cvsupdatecmd)
+
+#           create module directory
+            bb.debug(2, "Fetch: checking for module directory")
+            pkg=data.expand('${PN}', d)
+            pkgdir=os.path.join(data.expand('${CVSDIR}', localdata), pkg)
+            moddir=os.path.join(pkgdir,localdir)
+            if os.access(os.path.join(moddir,'CVS'), os.R_OK):
+                bb.note("Update " + loc)
+#               update sources there
+                os.chdir(moddir)
+                myret = os.system(cvsupdatecmd)
+            else:
+                bb.note("Fetch " + loc)
+#               check out sources there
+                bb.mkdirhier(pkgdir)
+                os.chdir(pkgdir)
+                bb.debug(1, "Running %s" % cvscmd)
+                myret = os.system(cvscmd)
+
+            if myret != 0:
+                try:
+                    os.rmdir(moddir)
+                except OSError:
+                    pass
+                raise FetchError(module)
+
+            os.chdir(moddir)
+            os.chdir('..')
+#           tar them up to a defined filename
+            myret = os.system("tar -czf %s %s" % (os.path.join(dldir,tarfn), os.path.basename(moddir)))
+            if myret != 0:
+                try:
+                    os.unlink(tarfn)
+                except OSError:
+                    pass
+            os.chdir(olddir)
+        del localdata
+
+methods.append(Cvs())
+
+class Bk(Fetch):
+    def supports(url, d):
+        """Check to see if a given url can be fetched via bitkeeper.
+           Expects supplied url in list form, as outputted by bb.decodeurl().
+        """
+        (type, host, path, user, pswd, parm) = bb.decodeurl(data.expand(url, d))
+        return type in ['bk']
+    supports = staticmethod(supports)
+
+methods.append(Bk())
+
+class Local(Fetch):
+    def supports(url, d):
+        """Check to see if a given url can be fetched in the local filesystem.
+           Expects supplied url in list form, as outputted by bb.decodeurl().
+        """
+        (type, host, path, user, pswd, parm) = bb.decodeurl(data.expand(url, d))
+        return type in ['file','patch']
+    supports = staticmethod(supports)
+
+    def localpath(url, d):
+        """Return the local filename of a given url assuming a successful fetch.
+        """
+        path = url.split("://")[1]
+        newpath = path
+        if path[0] != "/":
+            filespath = data.getVar('FILESPATH', d, 1)
+            if filespath:
+                newpath = bb.which(filespath, path)
+            if not newpath:
+                filesdir = data.getVar('FILESDIR', d, 1)
+                if filesdir:
+                    newpath = os.path.join(filesdir, path)
+        return newpath
+    localpath = staticmethod(localpath)
+
+    def go(self, urls = []):
+        """Fetch urls (no-op for Local method)"""
+#       no need to fetch local files, we'll deal with them in place.
+        return 1
+
+methods.append(Local())
+
+class Svn(Fetch):
+    """Class to fetch a module or modules from svn repositories"""
+    def supports(url, d):
+        """Check to see if a given url can be fetched with svn.
+           Expects supplied url in list form, as outputted by bb.decodeurl().
+        """
+        (type, host, path, user, pswd, parm) = bb.decodeurl(data.expand(url, d))
+        return type in ['svn']
+    supports = staticmethod(supports)
+
+    def localpath(url, d):
+        (type, host, path, user, pswd, parm) = bb.decodeurl(data.expand(url, d))
+        if "localpath" in parm:
+#           if user overrides local path, use it.
+            return parm["localpath"]
+
+        if not "module" in parm:
+            raise MissingParameterError("svn method needs a 'module' parameter")
+        else:
+            module = parm["module"]
+        if 'rev' in parm:
+            revision = parm['rev']
+        else:
+            revision = ""
+
+        date = data.getVar("CVSDATE", d, 1) or data.getVar("DATE", d, 1)
+
+        return os.path.join(data.getVar("DL_DIR", d, 1),data.expand('%s_%s_%s_%s.tar.gz' % ( module.replace('/', '.'), host, revision, date), d))
+    localpath = staticmethod(localpath)
+
+    def go(self, d, urls = []):
+        """Fetch urls"""
+        if not urls:
+            urls = self.urls
+
+        localdata = data.createCopy(d)
+        data.setVar('OVERRIDES', "svn:%s" % data.getVar('OVERRIDES', localdata), localdata)
+        data.update_data(localdata)
+
+        for loc in urls:
+            (type, host, path, user, pswd, parm) = bb.decodeurl(data.expand(loc, localdata))
+            if not "module" in parm:
+                raise MissingParameterError("svn method needs a 'module' parameter")
+            else:
+                module = parm["module"]
+
+            dlfile = self.localpath(loc, localdata)
+            dldir = data.getVar('DL_DIR', localdata, 1)
+#           if local path contains the svn
+#           module, consider the dir above it to be the
+#           download directory
+#           pos = dlfile.find(module)
+#           if pos:
+#               dldir = dlfile[:pos]
+#           else:
+#               dldir = os.path.dirname(dlfile)
+
+#           setup svn options
+            options = []
+            if 'rev' in parm:
+                revision = parm['rev']
+            else:
+                revision = ""
+
+            date = data.getVar("CVSDATE", d, 1) or data.getVar("DATE", d, 1)
+
+            if "method" in parm:
+                method = parm["method"]
+            else:
+                method = "pserver"
+
+            if "proto" in parm:
+                proto = parm["proto"]
+            else:
+                proto = "svn"
+
+            svn_rsh = None
+            if method == "ext":
+                if "rsh" in parm:
+                    svn_rsh = parm["rsh"]
+
+            tarfn = data.expand('%s_%s_%s_%s.tar.gz' % (module.replace('/', '.'), host, revision, date), localdata)
+            data.setVar('TARFILES', dlfile, localdata)
+            data.setVar('TARFN', tarfn, localdata)
+
+            dl = os.path.join(dldir, tarfn)
+            if os.access(dl, os.R_OK):
+                bb.debug(1, "%s already exists, skipping svn checkout." % tarfn)
+                continue
+
+            svn_tarball_stash = data.getVar('CVS_TARBALL_STASH', d, 1)
+            if svn_tarball_stash:
+                fetchcmd = data.getVar("FETCHCOMMAND_wget", d, 1)
+                uri = svn_tarball_stash + tarfn
+                bb.note("fetch " + uri)
+                fetchcmd = fetchcmd.replace("${URI}", uri)
+                ret = os.system(fetchcmd)
+                if ret == 0:
+                    bb.note("Fetched %s from tarball stash, skipping checkout" % tarfn)
+                    continue
+
+            olddir = os.path.abspath(os.getcwd())
+            os.chdir(data.expand(dldir, localdata))
+
+#           setup svnroot
+#            svnroot = ":" + method + ":" + user
+#            if pswd:
+#                svnroot += ":" + pswd
+            svnroot = host + path
+
+            data.setVar('SVNROOT', svnroot, localdata)
+            data.setVar('SVNCOOPTS', " ".join(options), localdata)
+            data.setVar('SVNMODULE', module, localdata)
+            svncmd = data.getVar('FETCHCOMMAND', localdata, 1)
+            svncmd = "svn co %s://%s/%s" % (proto, svnroot, module)
+
+            if revision:
+                svncmd = "svn co -r %s %s://%s/%s" % (revision, proto, svnroot, module)
+            if svn_rsh:
+                svncmd = "svn_RSH=\"%s\" %s" % (svn_rsh, svncmd)
+
+#           create temp directory
+            bb.debug(2, "Fetch: creating temporary directory")
+            bb.mkdirhier(data.expand('${WORKDIR}', localdata))
+            data.setVar('TMPBASE', data.expand('${WORKDIR}/oesvn.XXXXXX', localdata), localdata)
+            tmppipe = os.popen(data.getVar('MKTEMPDIRCMD', localdata, 1) or "false")
+            tmpfile = tmppipe.readline().strip()
+            if not tmpfile:
+                bb.error("Fetch: unable to create temporary directory.. make sure 'mktemp' is in the PATH.")
+                raise FetchError(module)
+
+#           check out sources there
+            os.chdir(tmpfile)
+            bb.note("Fetch " + loc)
+            bb.debug(1, "Running %s" % svncmd)
+            myret = os.system(svncmd)
+            if myret != 0:
+                try:
+                    os.rmdir(tmpfile)
+                except OSError:
+                    pass
+                raise FetchError(module)
+
+            os.chdir(os.path.join(tmpfile, os.path.dirname(module)))
+#           tar them up to a defined filename
+            myret = os.system("tar -czf %s %s" % (os.path.join(dldir,tarfn), os.path.basename(module)))
+            if myret != 0:
+                try:
+                    os.unlink(tarfn)
+                except OSError:
+                    pass
+#           cleanup
+            os.system('rm -rf %s' % tmpfile)
+            os.chdir(olddir)
+        del localdata
+
+methods.append(Svn())
diff --git a/bitbake/lib/bb/fetch.pyc b/bitbake/lib/bb/fetch.pyc
new file mode 100644
index 0000000000..d2e33835b5
--- /dev/null
+++ b/bitbake/lib/bb/fetch.pyc
diff --git a/bitbake/lib/bb/make.pyc b/bitbake/lib/bb/make.pyc
new file mode 100644
index 0000000000..f6fabc07a2
--- /dev/null
+++ b/bitbake/lib/bb/make.pyc
diff --git a/bitbake/lib/bb/manifest.py b/bitbake/lib/bb/manifest.py
new file mode 100644
index 0000000000..30bb454724
--- /dev/null
+++ b/bitbake/lib/bb/manifest.py
@@ -0,0 +1,144 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+#
+# Copyright (C) 2003, 2004  Chris Larson
+# 
+# This program is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free Software
+# Foundation; either version 2 of the License, or (at your option) any later
+# version.
+# 
+# This program is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License along with
+# this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+# Place, Suite 330, Boston, MA 02111-1307 USA. 
+
+import os, sys
+import bb, bb.data
+
+def getfields(line):
+    fields = {}
+    fieldmap = ( "pkg", "src", "dest", "type", "mode", "uid", "gid", "major", "minor", "start", "inc", "count" )
+    for f in xrange(len(fieldmap)):
+        fields[fieldmap[f]] = None
+
+    if not line:
+        return None
+
+    splitline = line.split()
+    if not len(splitline):
+        return None
+
+    try:
+        for f in xrange(len(fieldmap)):
+            if splitline[f] == '-':
+                continue
+            fields[fieldmap[f]] = splitline[f]
+    except IndexError:
+        pass
+    return fields
+
+def parse (mfile, d):
+    manifest = []
+    while 1:
+        line = mfile.readline()
+        if not line:
+            break
+        if line.startswith("#"):
+            continue
+        fields = getfields(line)
+        if not fields:
+            continue
+        manifest.append(fields)
+    return manifest
+
+def emit (func, manifest, d):
+#str = "%s () {\n" % func
+    str = ""
+    for line in manifest:
+        emittedline = emit_line(func, line, d)
+        if not emittedline:
+            continue
+        str += emittedline + "\n"
+#       str += "}\n"
+    return str
+
+def mangle (func, line, d):
+    import copy
+    newline = copy.copy(line)
+    src = bb.data.expand(newline["src"], d)
+
+    if src:
+        if not os.path.isabs(src):
+            src = "${WORKDIR}/" + src
+
+    dest = newline["dest"]
+    if not dest:
+        return
+
+    if dest.startswith("/"):
+        dest = dest[1:]
+
+    if func is "do_install":
+        dest = "${D}/" + dest
+
+    elif func is "do_populate":
+        dest = "${WORKDIR}/install/" + newline["pkg"] + "/" + dest
+
+    elif func is "do_stage":
+        varmap = {}
+        varmap["${bindir}"] = "${STAGING_DIR}/${HOST_SYS}/bin"
+        varmap["${libdir}"] = "${STAGING_DIR}/${HOST_SYS}/lib"
+        varmap["${includedir}"] = "${STAGING_DIR}/${HOST_SYS}/include"
+        varmap["${datadir}"] = "${STAGING_DATADIR}"
+
+        matched = 0
+        for key in varmap.keys():
+            if dest.startswith(key):
+                dest = varmap[key] + "/" + dest[len(key):]
+                matched = 1
+        if not matched:
+            newline = None
+            return
+    else:
+        newline = None
+        return
+
+    newline["src"] = src
+    newline["dest"] = dest
+    return newline
+
+def emit_line (func, line, d):
+    import copy
+    newline = copy.deepcopy(line)
+    newline = mangle(func, newline, d)
+    if not newline:
+        return None
+
+    str = ""
+    type = newline["type"]
+    mode = newline["mode"]
+    src = newline["src"]
+    dest = newline["dest"]
+    if type is "d":
+        str = "install -d "
+        if mode:
+            str += "-m %s " % mode
+        str += dest
+    elif type is "f":
+        if not src:
+            return None
+        if dest.endswith("/"):
+            str = "install -d "
+            str += dest + "\n"
+            str += "install "
+        else:
+            str = "install -D "
+        if mode:
+            str += "-m %s " % mode
+        str += src + " " + dest
+    del newline
+    return str
diff --git a/bitbake/lib/bb/manifest.pyc b/bitbake/lib/bb/manifest.pyc
new file mode 100644
index 0000000000..02fb18ae4a
--- /dev/null
+++ b/bitbake/lib/bb/manifest.pyc
diff --git a/bitbake/lib/bb/parse/BBHandler.pyc b/bitbake/lib/bb/parse/BBHandler.pyc
new file mode 100644
index 0000000000..047a6853a3
--- /dev/null
+++ b/bitbake/lib/bb/parse/BBHandler.pyc
diff --git a/bitbake/lib/bb/parse/ConfHandler.pyc b/bitbake/lib/bb/parse/ConfHandler.pyc
new file mode 100644
index 0000000000..620af52942
--- /dev/null
+++ b/bitbake/lib/bb/parse/ConfHandler.pyc
diff --git a/bitbake/lib/bb/parse/__init__.py b/bitbake/lib/bb/parse/__init__.py
new file mode 100644
index 0000000000..b8839c09fd
--- /dev/null
+++ b/bitbake/lib/bb/parse/__init__.py
@@ -0,0 +1,70 @@
+"""
+BitBake Parsers
+
+File parsers for the BitBake build tools.
+
+Copyright (C) 2003, 2004  Chris Larson
+Copyright (C) 2003, 2004  Phil Blundell
+
+This program is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free Software
+Foundation; either version 2 of the License, or (at your option) any later
+version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+Place, Suite 330, Boston, MA 02111-1307 USA.
+
+Based on functions from the base bb module, Copyright 2003 Holger Schurig
+"""
+
+__all__ = [ 'ParseError', 'SkipPackage', 'cached_mtime', 'mark_dependency',
+            'supports', 'handle', 'init' ]
+handlers = []
+
+class ParseError(Exception):
+    """Exception raised when parsing fails"""
+
+class SkipPackage(Exception):
+    """Exception raised to skip this package"""
+
+__mtime_cache = {}
+def cached_mtime(f):
+    import os
+    if not __mtime_cache.has_key(f):
+        __mtime_cache[f] = os.stat(f)[8]
+    return __mtime_cache[f]
+
+def mark_dependency(d, f):
+    import bb, os
+    if f.startswith('./'):
+        f = "%s/%s" % (os.getcwd(), f[2:])
+    deps = (bb.data.getVar('__depends', d) or "").split()
+    deps.append("%s@%s" % (f, cached_mtime(f)))
+    bb.data.setVar('__depends', " ".join(deps), d)
+
+def supports(fn, data):
+    """Returns true if we have a handler for this file, false otherwise"""
+    for h in handlers:
+        if h['supports'](fn, data):
+            return 1
+    return 0
+
+def handle(fn, data, include = 0):
+    """Call the handler that is appropriate for this file"""
+    for h in handlers:
+        if h['supports'](fn, data):
+            return h['handle'](fn, data, include)
+    raise ParseError("%s is not a BitBake file" % fn)
+
+def init(fn, data):
+    for h in handlers:
+        if h['supports'](fn):
+            return h['init'](data)
+
+
+from parse_py import __version__, ConfHandler, BBHandler
diff --git a/bitbake/lib/bb/parse/__init__.pyc b/bitbake/lib/bb/parse/__init__.pyc
new file mode 100644
index 0000000000..a2c2d6ae54
--- /dev/null
+++ b/bitbake/lib/bb/parse/__init__.pyc
diff --git a/bitbake/lib/bb/parse/parse_c/bitbakeparser.l b/bitbake/lib/bb/parse/parse_c/bitbakeparser.l
new file mode 100644
index 0000000000..ee4ce14839
--- /dev/null
+++ b/bitbake/lib/bb/parse/parse_c/bitbakeparser.l
@@ -0,0 +1,288 @@
+/* bbf.flex 
+
+   written by Marc Singer
+   6 January 2005
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+   USA.
+
+   DESCRIPTION
+   -----------
+
+   flex lexer specification for a BitBake input file parser.
+
+   Unfortunately, flex doesn't welcome comments within the rule sets.
+   I say unfortunately because this lexer is unreasonably complex and
+   comments would make the code much easier to comprehend.
+
+   The BitBake grammar is not regular.  In order to interpret all
+   of the available input files, the lexer maintains much state as it
+   parses.  There are places where this lexer will emit tokens that
+   are invalid.  The parser will tend to catch these. 
+
+   The lexer requires C++ at the moment.  The only reason for this has
+   to do with a very small amount of managed state.  Producing a C
+   lexer should be a reasonably easy task as long as the %reentrant
+   option is used.
+
+
+   NOTES
+   -----
+
+   o RVALUES.  There are three kinds of RVALUES.  There are unquoted
+     values, double quote enclosed strings, and single quote 
+     strings.  Quoted strings may contain unescaped quotes (of either
+     type), *and* any type may span more than one line by using a
+     continuation '\' at the end of the line.  This requires us to
+     recognize all types of values with a single expression.
+     Moreover, the only reason to quote a value is to include
+     trailing or leading whitespace.  Whitespace within a value is
+     preserved, ugh.
+
+   o CLASSES.  C_ patterns define classes.  Classes ought not include
+     a repitition operator, instead letting the reference to the class
+     define the repitition count.
+
+     C_SS - symbol start
+     C_SB - symbol body
+     C_SP - whitespace
+
+*/
+
+%option never-interactive
+%option yylineno
+%option noyywrap
+%option reentrant stack
+
+
+%{
+
+#include "token.h"
+#include "lexer.h"
+#include <ctype.h>
+
+extern void *bbparseAlloc(void *(*mallocProc)(size_t));
+extern void bbparseFree(void *p, void (*freeProc)(void*));
+extern void *bbparseAlloc(void *(*mallocProc)(size_t));
+extern void *bbparse(void*, int, token_t, lex_t*);
+extern void bbparseTrace(FILE *TraceFILE, char *zTracePrompt);
+
+//static const char* rgbInput;
+//static size_t cbInput;
+
+
+int lineError;
+int errorParse;
+
+enum {
+  errorNone = 0,
+  errorUnexpectedInput,
+  errorUnsupportedFeature, 
+};
+
+#define YY_EXTRA_TYPE lex_t*
+
+        /* Read from buffer */
+#define YY_INPUT(buf,result,max_size) \
+ { yyextra->input(buf, &result, max_size); }
+
+//#define YY_DECL static size_t yylex ()
+
+#define ERROR(e) \
+  do { lineError = yylineno; errorParse = e; yyterminate (); } while (0)
+
+static const char* fixup_escapes (const char* sz);
+
+%}
+
+
+C_SP            [ \t]
+COMMENT         #.*\n
+OP_ASSIGN       "="
+OP_IMMEDIATE    ":="
+OP_PREPEND      "=+"
+OP_APPEND       "+="
+OP_COND         "?="
+B_OPEN          "{"
+B_CLOSE         "}"
+
+K_ADDTASK       "addtask"
+K_ADDHANDLER    "addhandler"
+K_AFTER         "after"
+K_BEFORE        "before"
+K_DEF           "def"
+K_INCLUDE       "include"
+K_INHERIT       "inherit"
+K_PYTHON        "python"
+K_FAKEROOT      "fakeroot"
+K_EXPORT        "export"
+K_EXPORT_FUNC   "EXPORT_FUNCTIONS"
+
+STRING          \"([^\n\r]|"\\\n")*\"
+SSTRING         \'([^\n\r]|"\\\n")*\'
+VALUE           ([^'" \t\n])|([^'" \t\n]([^\n]|(\\\n))*[^'" \t\n])
+
+C_SS            [a-zA-Z_]
+C_SB            [a-zA-Z0-9_+-.]
+REF             $\{{C_SS}{C_SB}*\}
+SYMBOL          {C_SS}{C_SB}*
+VARIABLE        $?{C_SS}({C_SB}*|{REF})*(\[[a-zA-Z0-9_]*\])?
+FILENAME        ([a-zA-Z_./]|{REF})(([-+a-zA-Z0-9_./]*)|{REF})*
+
+PROC            \({C_SP}*\)
+
+%s S_DEF
+%s S_DEF_ARGS
+%s S_DEF_BODY
+%s S_FUNC
+%s S_INCLUDE
+%s S_INHERIT
+%s S_PROC
+%s S_RVALUE
+%s S_TASK
+
+%%
+
+{OP_APPEND}                     { BEGIN S_RVALUE;
+                                  yyextra->accept (T_OP_APPEND); }
+{OP_PREPEND}                    { BEGIN S_RVALUE;
+                                  yyextra->accept (T_OP_PREPEND); }
+{OP_IMMEDIATE}                  { BEGIN S_RVALUE;
+                                  yyextra->accept (T_OP_IMMEDIATE); }
+{OP_ASSIGN}                     { BEGIN S_RVALUE;
+                                  yyextra->accept (T_OP_ASSIGN); }
+{OP_COND}                       { BEGIN S_RVALUE;
+                                  yyextra->accept (T_OP_COND); }
+
+<S_RVALUE>\\\n{C_SP}*           {  }
+<S_RVALUE>{STRING}              { BEGIN INITIAL;
+                                  size_t cb = yyleng;
+                                  while (cb && isspace (yytext[cb - 1]))
+                                      --cb;
+                                  yytext[cb - 1] = 0;
+                                  yyextra->accept (T_STRING, yytext + 1); }
+<S_RVALUE>{SSTRING}             { BEGIN INITIAL;
+                                  size_t cb = yyleng;
+                                  while (cb && isspace (yytext[cb - 1]))
+                                      --cb;
+                                  yytext[cb - 1] = 0;
+                                  yyextra->accept (T_STRING, yytext + 1); }
+
+<S_RVALUE>{VALUE}               { ERROR (errorUnexpectedInput);  }
+<S_RVALUE>{C_SP}*\n+            { BEGIN INITIAL;
+                                  yyextra->accept (T_STRING, NULL); }
+
+{K_INCLUDE}                     { BEGIN S_INCLUDE;
+                                  yyextra->accept (T_INCLUDE); }
+{K_INHERIT}                     { BEGIN S_INHERIT;
+                                  yyextra->accept (T_INHERIT); }
+{K_ADDTASK}                     { BEGIN S_TASK;
+                                  yyextra->accept (T_ADDTASK); }
+{K_ADDHANDLER}                  { yyextra->accept (T_ADDHANDLER); }
+{K_EXPORT_FUNC}                 { BEGIN S_FUNC;
+                                  yyextra->accept (T_EXPORT_FUNC); }
+<S_TASK>{K_BEFORE}              { yyextra->accept (T_BEFORE); }
+<S_TASK>{K_AFTER}               { yyextra->accept (T_AFTER); }
+<INITIAL>{K_EXPORT}             { yyextra->accept (T_EXPORT); }
+
+<INITIAL>{K_FAKEROOT}           { yyextra->accept (T_FAKEROOT); }
+<INITIAL>{K_PYTHON}             { yyextra->accept (T_PYTHON); }
+{PROC}{C_SP}*{B_OPEN}{C_SP}*\n*  { BEGIN S_PROC;
+                                  yyextra->accept (T_PROC_OPEN); }
+<S_PROC>{B_CLOSE}{C_SP}*\n*      { BEGIN INITIAL;
+                                  yyextra->accept (T_PROC_CLOSE); }
+<S_PROC>([^}][^\n]*)?\n*        { yyextra->accept (T_PROC_BODY, yytext); }
+
+{K_DEF}                         { BEGIN S_DEF; }
+<S_DEF>{SYMBOL}                 { BEGIN S_DEF_ARGS;
+                                  yyextra->accept (T_SYMBOL, yytext); }
+<S_DEF_ARGS>[^\n:]*:            { yyextra->accept (T_DEF_ARGS, yytext); }
+<S_DEF_ARGS>{C_SP}*\n           { BEGIN S_DEF_BODY; }
+<S_DEF_BODY>{C_SP}+[^\n]*\n     { yyextra->accept (T_DEF_BODY, yytext); }
+<S_DEF_BODY>\n                  { yyextra->accept (T_DEF_BODY, yytext); }
+<S_DEF_BODY>.                   { BEGIN INITIAL; unput (yytext[0]); }
+
+{COMMENT}                       { }
+
+<INITIAL>{SYMBOL}               { yyextra->accept (T_SYMBOL, yytext); }
+<INITIAL>{VARIABLE}             { yyextra->accept (T_VARIABLE, yytext); }
+
+<S_TASK>{SYMBOL}                { yyextra->accept (T_TSYMBOL, yytext); }
+<S_FUNC>{SYMBOL}                { yyextra->accept (T_FSYMBOL, yytext); }
+<S_INHERIT>{SYMBOL}             { yyextra->accept (T_ISYMBOL, yytext); }
+<S_INCLUDE>{FILENAME}           { BEGIN INITIAL;
+                                  yyextra->accept (T_ISYMBOL, yytext); }
+
+<S_TASK>\n                      { BEGIN INITIAL; }
+<S_FUNC>\n                      { BEGIN INITIAL; }
+<S_INHERIT>\n                   { BEGIN INITIAL; }
+
+[ \t\r\n]                       /* Insignificant whitespace */
+
+.                               { ERROR (errorUnexpectedInput); }
+
+                                /* Check for premature termination */
+<<EOF>>                         { return T_EOF; }
+
+%%
+
+void lex_t::accept (int token, const char* sz) 
+{
+    token_t t;
+    memset (&t, 0, sizeof (t));
+    t.copyString(sz);
+
+    /* tell lemon to parse the token */
+    parse (parser, token, t, this);
+}
+
+int lex_t::line ()const
+{
+    return yyget_lineno (scanner);
+}
+
+const char* lex_t::filename ()const
+{
+    return m_fileName;
+}
+
+void parse (MappedFile* mf)
+{
+    void* parser = bbparseAlloc (malloc);
+    yyscan_t scanner;
+    lex_t lex;
+
+    yylex_init (&scanner);
+
+    lex.parser = parser;
+    lex.scanner = scanner;
+    lex.mf = mf;
+    lex.rgbInput = mf->m_rgb;
+    lex.cbInput = mf->m_cb;
+    lex.parse = bbparse;
+    yyset_extra (&lex, scanner);
+
+
+    int result = yylex (scanner);
+
+    lex.accept (0);
+    bbparseTrace (NULL, NULL);
+
+    if (result != T_EOF)
+        WARNING ("premature end of file\n");
+
+    yylex_destroy (scanner);
+    bbparseFree (parser, free);
+}
diff --git a/bitbake/lib/bb/parse/parse_c/bitbakeparser.py b/bitbake/lib/bb/parse/parse_c/bitbakeparser.py
new file mode 100644
index 0000000000..ed7b13eef9
--- /dev/null
+++ b/bitbake/lib/bb/parse/parse_c/bitbakeparser.py
@@ -0,0 +1,133 @@
+"""
+
+BitBake C Parser Python Code
+
+Copyright (C) 2005 Holger Hans Peter Freyther
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
+THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+"""
+
+__version__ = "0xdeadbeef"
+
+class CParser:
+    """
+    The C-based Parser for Bitbake
+    """
+    def __init__(self, data, type):
+        """
+        Constructor
+        """
+        self._data = data
+
+    def _syntax_error(self, file, line):
+        """
+        lemon/flex reports an syntax error to us and we will
+        raise an exception
+        """
+        pass
+
+    def _export(self, data):
+        """
+        EXPORT VAR = "MOO"
+        we will now export VAR
+        """
+        pass
+
+    def _assign(self, key, value):
+        """
+        VAR = "MOO"
+        we will assign moo to VAR
+        """
+        pass
+
+    def _assign(self, key, value):
+        """
+        """
+        pass
+
+    def _append(self, key, value):
+        """
+        VAR += "MOO"
+        we will append " MOO" to var
+        """
+        pass
+
+    def _prepend(self, key, value):
+        """
+        VAR =+ "MOO"
+        we will prepend "MOO " to var
+        """
+        pass
+
+    def _immediate(self, key, value):
+        """
+        VAR := "MOO ${CVSDATE}"
+        we will assign immediately and expand vars
+        """
+        pass
+
+    def _conditional(self, key, value):
+        """
+        """
+        pass
+
+    def _add_task(self, task, before = None, after = None):
+        """
+        """
+        pass
+
+    def _include(self, file):
+        """
+        """
+        pass
+
+    def _inherit(self, file):
+        """
+        """
+        pass
+
+    def _shell_procedure(self, name, body):
+        """
+        """
+        pass
+
+    def _python_procedure(self, name, body):
+        """
+        """
+        pass
+
+    def _fakeroot_procedure(self, name, body):
+        """
+        """
+        pass
+
+    def _def_procedure(self, a, b, c):
+        """
+        """
+        pass
+
+    def _export_func(self, name):
+        """
+        """
+        pass
+
+    def _add_handler(self, handler):
+        """
+        """
+        pass
diff --git a/bitbake/lib/bb/parse/parse_c/bitbakeparser.y b/bitbake/lib/bb/parse/parse_c/bitbakeparser.y
new file mode 100644
index 0000000000..4bc81a913a
--- /dev/null
+++ b/bitbake/lib/bb/parse/parse_c/bitbakeparser.y
@@ -0,0 +1,161 @@
+/* bbp.lemon 
+
+   written by Marc Singer
+   6 January 2005
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+   USA.
+
+   DESCRIPTION
+   -----------
+
+   lemon parser specification file for a BitBake input file parser.
+
+   Most of the interesting shenanigans are done in the lexer.  The
+   BitBake grammar is not regular.  In order to emit tokens that
+   the parser can properly interpret in LALR fashion, the lexer
+   manages the interpretation state.  This is why there are ISYMBOLs,
+   SYMBOLS, and TSYMBOLS.
+
+   This parser was developed by reading the limited available
+   documentation for BitBake and by analyzing the available BB files.
+   There is no assertion of correctness to be made about this parser.
+
+*/
+
+%token_type {token_t}
+%name bbparse
+%token_prefix   T_
+%extra_argument  {lex_t* lex}
+
+%include {
+#include "token.h"
+}
+
+
+%token_destructor { $$.release_this (); }
+
+%syntax_error     { printf ("%s:%d: syntax error\n",
+                    lex->filename (), lex->line ()); }
+
+program ::= statements.
+
+statements ::= statements statement.
+statements ::= .
+
+variable(r) ::= SYMBOL(s).
+        { r.assignString( s.string() );
+          s.assignString( 0 );
+          s.release_this(); }
+variable(r) ::= VARIABLE(v).
+        {
+          r.assignString( v.string() );
+          v.assignString( 0 );
+          v.release_this(); }
+
+statement ::= EXPORT variable(s) OP_ASSIGN STRING(v).
+        { e_assign( s.string(), v.string() );
+          e_export( s.string() );
+          s.release_this(); v.release_this(); }
+statement ::= EXPORT variable(s) OP_IMMEDIATE STRING(v).
+        { e_immediate (s.string(), v.string() );
+          e_export( s.string() );
+          s.release_this(); v.release_this(); }
+statement ::= EXPORT variable(s) OP_COND STRING(v).
+        { e_cond( s.string(), v.string() );
+          s.release_this(); v.release_this(); }
+
+statement ::= variable(s) OP_ASSIGN STRING(v).
+        { e_assign( s.string(), v.string() );
+          s.release_this(); v.release_this(); }
+statement ::= variable(s) OP_PREPEND STRING(v).
+        { e_prepend( s.string(), v.string() );
+          s.release_this(); v.release_this(); }
+statement ::= variable(s) OP_APPEND STRING(v).
+        { e_append( s.string() , v.string() );
+          s.release_this(); v.release_this(); }
+statement ::= variable(s) OP_IMMEDIATE STRING(v).
+        { e_immediate( s.string(), v.string() );
+          s.release_this(); v.release_this(); }
+statement ::= variable(s) OP_COND STRING(v).
+        { e_cond( s.string(), v.string() );
+          s.release_this(); v.release_this(); }
+
+task ::= TSYMBOL(t) BEFORE TSYMBOL(b) AFTER  TSYMBOL(a).
+        { e_addtask( t.string(), b.string(), a.string() );
+          t.release_this(); b.release_this(); a.release_this(); }
+task ::= TSYMBOL(t) AFTER  TSYMBOL(a) BEFORE TSYMBOL(b).
+        { e_addtask( t.string(), b.string(), a.string());
+          t.release_this(); a.release_this(); b.release_this(); }
+task ::= TSYMBOL(t).
+        { e_addtask( t.string(), NULL, NULL);
+          t.release_this();}
+task ::= TSYMBOL(t) BEFORE TSYMBOL(b).
+        { e_addtask( t.string(), b.string(), NULL);
+          t.release_this(); b.release_this(); }
+task ::= TSYMBOL(t) AFTER  TSYMBOL(a).
+        { e_addtask( t.string(), NULL, a.string());
+          t.release_this(); a.release_this(); }
+tasks ::= tasks task.
+tasks ::= task.
+statement ::= ADDTASK tasks.
+
+statement ::= ADDHANDLER SYMBOL(s).
+        { e_addhandler( s.string()); s.release_this (); }
+
+func ::= FSYMBOL(f). { e_export_func(f.string()); f.release_this(); }
+funcs ::= funcs func.
+funcs ::= func.
+statement ::= EXPORT_FUNC funcs.
+
+inherit ::= ISYMBOL(i). { e_inherit(i.string() ); i.release_this (); }
+inherits ::= inherits inherit.
+inherits ::= inherit.
+statement ::= INHERIT inherits.
+
+statement ::= INCLUDE ISYMBOL(i).
+        { e_include(i.string() ); i.release_this(); }
+
+proc_body(r) ::= proc_body(l) PROC_BODY(b). 
+        { /* concatenate body lines */
+          r.assignString( token_t::concatString(l.string(), b.string()) );
+          l.release_this ();
+          b.release_this ();
+        }
+proc_body(b) ::= . { b.assignString(0); }
+statement ::= variable(p) PROC_OPEN proc_body(b) PROC_CLOSE.
+        { e_proc( p.string(), b.string() );
+          p.release_this(); b.release_this(); }
+statement ::= PYTHON SYMBOL(p) PROC_OPEN proc_body(b) PROC_CLOSE.
+        { e_proc_python (p.string(), b.string() );
+          p.release_this(); b.release_this(); }
+statement ::= PYTHON PROC_OPEN proc_body(b) PROC_CLOSE.
+        { e_proc_python( NULL, b.string());
+          b.release_this (); }
+
+statement ::= FAKEROOT SYMBOL(p) PROC_OPEN proc_body(b) PROC_CLOSE.
+        { e_proc_fakeroot(p.string(), b.string() );
+          p.release_this (); b.release_this (); }
+
+def_body(r) ::= def_body(l) DEF_BODY(b).
+        { /* concatenate body lines */
+          r.assignString( token_t::concatString(l.string(), b.string());
+          l.release_this (); b.release_this ();
+        }
+def_body(b) ::= . { b.sz = 0; }
+statement ::= SYMBOL(p) DEF_ARGS(a) def_body(b).
+        { e_def( p.string(), a.string(), b.string());
+          p.release_this(); a.release_this(); b.release_this(); }
+
diff --git a/bitbake/lib/bb/parse/parse_c/lexer.h b/bitbake/lib/bb/parse/parse_c/lexer.h
new file mode 100644
index 0000000000..1edf72dcf5
--- /dev/null
+++ b/bitbake/lib/bb/parse/parse_c/lexer.h
@@ -0,0 +1,41 @@
+/*
+Copyright (C) 2005 Holger Hans Peter Freyther
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
+THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+*/
+
+#ifndef LEXER_H
+#define LEXER_H
+
+struct lex_t {
+    void *parser;
+    void *scanner;
+    void* (*parse)(void*, int, token_t, lex_t*);
+
+    void accept(int token, const char* string = 0);
+    void input(char *buf, int *result, int_max_size);
+    int  line()const;
+    const char* filename()const;
+private:
+    const char* m_fileName;
+};
+
+
+#endif
diff --git a/bitbake/lib/bb/parse/parse_c/token.h b/bitbake/lib/bb/parse/parse_c/token.h
new file mode 100644
index 0000000000..2351fda6b5
--- /dev/null
+++ b/bitbake/lib/bb/parse/parse_c/token.h
@@ -0,0 +1,83 @@
+/*
+Copyright (C) 2005 Holger Hans Peter Freyther
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
+THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+*/
+
+#ifndef TOKEN_H
+#define TOKEN_H
+
+#define PURE_METHOD
+
+struct token_t {
+    const char* string()const PURE_METHOD;
+
+    static char* concatString(const char* l, const char* r);
+    void assignString(const char* str);
+    void copyString(const char* str);
+
+    void release_this();
+
+private:
+    char  *m_string;
+    size_t m_stringLen;
+};
+
+inline const char* token_t::string()const
+{
+    return m_string;
+}
+
+/*
+ * append str to the current string
+ */
+inline char* token_t::concatString(const char* l, const char* r)
+{
+    size_t cb = (l ? strlen (l) : 0) + strlen (r) + 1;
+    r_sz = new char[cb];
+    *r_sz = 0;
+    if (l) strcat (r_sz, l);
+    strcat (r_sz, r);
+
+    return r_sz;
+}
+
+inline void token_t::assignString(const char* str)
+{
+    m_string = str;
+    m_stringLen = str ? strlen(str) : 0;
+}
+
+inline void token_t::copyString(const char* str)
+{
+    if( str ) {
+        m_stringLen = strlen(str);
+        m_string = new char[m_stringLen+1];
+        strcpy(m_string, str)
+    }
+}
+
+inline void token_t::release_this()
+{
+    delete m_string;
+    m_string = 0;
+}
+
+#endif
diff --git a/bitbake/lib/bb/parse/parse_py/BBHandler.py b/bitbake/lib/bb/parse/parse_py/BBHandler.py
new file mode 100644
index 0000000000..fac3e85b36
--- /dev/null
+++ b/bitbake/lib/bb/parse/parse_py/BBHandler.py
@@ -0,0 +1,378 @@
+#!/usr/bin/env python
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+"""class for handling .bb files
+
+   Reads a .bb file and obtains its metadata
+
+   Copyright (C) 2003, 2004  Chris Larson
+   Copyright (C) 2003, 2004  Phil Blundell
+   
+   This program is free software; you can redistribute it and/or modify it under
+   the terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 2 of the License, or (at your option) any later
+   version.
+   
+   This program is distributed in the hope that it will be useful, but WITHOUT
+   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+   FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License along with
+   this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+   Place, Suite 330, Boston, MA 02111-1307 USA.""" 
+
+import re, bb, os, sys
+import bb.fetch, bb.build
+from bb import debug, data, fetch, fatal
+
+from ConfHandler import include, localpath, obtain, init
+from bb.parse import ParseError
+
+__func_start_regexp__    = re.compile( r"(((?P<py>python)|(?P<fr>fakeroot))\s*)*(?P<func>[\w\.\-\+\{\}\$]+)?\s*\(\s*\)\s*{$" )
+__inherit_regexp__       = re.compile( r"inherit\s+(.+)" )
+__export_func_regexp__   = re.compile( r"EXPORT_FUNCTIONS\s+(.+)" )
+__addtask_regexp__       = re.compile("addtask\s+(?P<func>\w+)\s*((before\s*(?P<before>((.*(?=after))|(.*))))|(after\s*(?P<after>((.*(?=before))|(.*)))))*")
+__addhandler_regexp__    = re.compile( r"addhandler\s+(.+)" )
+__def_regexp__           = re.compile( r"def\s+(\w+).*:" )
+__python_func_regexp__   = re.compile( r"(\s+.*)|(^$)" )
+__word__ = re.compile(r"\S+")
+
+__infunc__ = ""
+__inpython__ = False
+__body__   = []
+__bbpath_found__ = 0
+__classname__ = ""
+classes = [ None, ]
+
+def supports(fn, d):
+    localfn = localpath(fn, d)
+    return localfn[-3:] == ".bb" or localfn[-8:] == ".bbclass" or localfn[-4:] == ".inc"
+
+def inherit(files, d):
+    __inherit_cache = data.getVar('__inherit_cache', d) or ""
+    fn = ""
+    lineno = 0
+    for f in files:
+        file = data.expand(f, d)
+        if file[0] != "/" and file[-8:] != ".bbclass":
+            file = os.path.join('classes', '%s.bbclass' % file)
+
+        if not file in __inherit_cache.split():
+            debug(2, "BB %s:%d: inheriting %s" % (fn, lineno, file))
+            __inherit_cache += " %s" % file
+            include(fn, file, d)
+    data.setVar('__inherit_cache', __inherit_cache, d)
+
+
+def handle(fn, d, include = 0):
+    global __func_start_regexp__, __inherit_regexp__, __export_func_regexp__, __addtask_regexp__, __addhandler_regexp__, __infunc__, __body__, __bbpath_found__, __residue__
+    __body__ = []
+    __bbpath_found__ = 0
+    __infunc__ = ""
+    __classname__ = ""
+    __residue__ = []
+
+    if include == 0:
+        debug(2, "BB " + fn + ": handle(data)")
+    else:
+        debug(2, "BB " + fn + ": handle(data, include)")
+
+    (root, ext) = os.path.splitext(os.path.basename(fn))
+    init(d)
+
+    if ext == ".bbclass":
+        __classname__ = root
+        classes.append(__classname__)
+
+    if include != 0:
+        oldfile = data.getVar('FILE', d)
+    else:
+        oldfile = None
+
+    fn = obtain(fn, d)
+    bbpath = (data.getVar('BBPATH', d, 1) or '').split(':')
+    if not os.path.isabs(fn):
+        f = None
+        for p in bbpath:
+            p = data.expand(p, d)
+            j = os.path.join(p, fn)
+            if os.access(j, os.R_OK):
+                abs_fn = j
+                f = open(j, 'r')
+                break
+        if f is None:
+            raise IOError("file not found")
+    else:
+        f = open(fn,'r')
+        abs_fn = fn
+
+    if ext != ".bbclass":
+        bbpath.insert(0, os.path.dirname(abs_fn))
+        data.setVar('BBPATH', ":".join(bbpath), d)
+
+    if include:
+        bb.parse.mark_dependency(d, abs_fn)
+
+    if ext != ".bbclass":
+        data.setVar('FILE', fn, d)
+        i = (data.getVar("INHERIT", d, 1) or "").split()
+        if not "base" in i and __classname__ != "base":
+            i[0:0] = ["base"]
+        inherit(i, d)
+
+    lineno = 0
+    while 1:
+        lineno = lineno + 1
+        s = f.readline()
+        if not s: break
+        s = s.rstrip()
+        feeder(lineno, s, fn, d)
+    if __inpython__:
+        # add a blank line to close out any python definition
+        feeder(lineno + 1, "", fn, d)
+    if ext == ".bbclass":
+        classes.remove(__classname__)
+    else:
+        if include == 0:
+            data.expandKeys(d)
+            data.update_data(d)
+            anonqueue = data.getVar("__anonqueue", d, 1) or []
+            for anon in anonqueue:
+                data.setVar("__anonfunc", anon["content"], d)
+                data.setVarFlags("__anonfunc", anon["flags"], d)
+                from bb import build
+                try:
+                    t = data.getVar('T', d)
+                    data.setVar('T', '${TMPDIR}/', d)
+                    build.exec_func("__anonfunc", d)
+                    data.delVar('T', d)
+                    if t:
+                        data.setVar('T', t, d)
+                except Exception, e:
+                    bb.debug(1, "executing anonymous function: %s" % e)
+                    raise
+            data.delVar("__anonqueue", d)
+            data.delVar("__anonfunc", d)
+            set_additional_vars(fn, d, include)
+            data.update_data(d)
+
+            for var in data.keys(d):
+                if data.getVarFlag(var, 'handler', d):
+                    bb.event.register(data.getVar(var, d))
+                    continue
+
+                if not data.getVarFlag(var, 'task', d):
+                    continue
+
+                deps = data.getVarFlag(var, 'deps', d) or []
+                postdeps = data.getVarFlag(var, 'postdeps', d) or []
+                bb.build.add_task(var, deps, d)
+                for p in postdeps:
+                    pdeps = data.getVarFlag(p, 'deps', d) or []
+                    pdeps.append(var)
+                    data.setVarFlag(p, 'deps', pdeps, d)
+                    bb.build.add_task(p, pdeps, d)
+        bbpath.pop(0)
+    if oldfile:
+        bb.data.setVar("FILE", oldfile, d)
+    return d
+
+def feeder(lineno, s, fn, d):
+    global __func_start_regexp__, __inherit_regexp__, __export_func_regexp__, __addtask_regexp__, __addhandler_regexp__, __def_regexp__, __python_func_regexp__, __inpython__,__infunc__, __body__, __bbpath_found__, classes, bb, __residue__
+    if __infunc__:
+        if s == '}':
+            __body__.append('')
+            data.setVar(__infunc__, '\n'.join(__body__), d)
+            data.setVarFlag(__infunc__, "func", 1, d)
+            if __infunc__ == "__anonymous":
+                anonqueue = bb.data.getVar("__anonqueue", d) or []
+                anonitem = {}
+                anonitem["content"] = bb.data.getVar("__anonymous", d)
+                anonitem["flags"] = bb.data.getVarFlags("__anonymous", d)
+                anonqueue.append(anonitem)
+                bb.data.setVar("__anonqueue", anonqueue, d)
+                bb.data.delVarFlags("__anonymous", d)
+                bb.data.delVar("__anonymous", d)
+            __infunc__ = ""
+            __body__ = []
+        else:
+            __body__.append(s)
+        return
+
+    if __inpython__:
+        m = __python_func_regexp__.match(s)
+        if m:
+            __body__.append(s)
+            return
+        else:
+            text = '\n'.join(__body__)
+            comp = compile(text, "<bb>", "exec")
+            exec comp in __builtins__
+            __body__ = []
+            __inpython__ = False
+            funcs = data.getVar('__functions__', d) or ""
+            data.setVar('__functions__', "%s\n%s" % (funcs, text), d)
+#           fall through
+
+    if s == '' or s[0] == '#': return          # skip comments and empty lines
+
+    if s[-1] == '\\':
+        __residue__.append(s[:-1])
+        return
+
+    s = "".join(__residue__) + s
+    __residue__ = []
+
+    m = __func_start_regexp__.match(s)
+    if m:
+        __infunc__ = m.group("func") or "__anonymous"
+        key = __infunc__
+        if data.getVar(key, d):
+#           clean up old version of this piece of metadata, as its
+#           flags could cause problems
+            data.setVarFlag(key, 'python', None, d)
+            data.setVarFlag(key, 'fakeroot', None, d)
+        if m.group("py") is not None:
+            data.setVarFlag(key, "python", "1", d)
+        else:
+            data.delVarFlag(key, "python", d)
+        if m.group("fr") is not None:
+            data.setVarFlag(key, "fakeroot", "1", d)
+        else:
+            data.delVarFlag(key, "fakeroot", d)
+        return
+
+    m = __def_regexp__.match(s)
+    if m:
+        __body__.append(s)
+        __inpython__ = True
+        return
+
+    m = __export_func_regexp__.match(s)
+    if m:
+        fns = m.group(1)
+        n = __word__.findall(fns)
+        for f in n:
+            allvars = []
+            allvars.append(f)
+            allvars.append(classes[-1] + "_" + f)
+
+            vars = [[ allvars[0], allvars[1] ]]
+            if len(classes) > 1 and classes[-2] is not None:
+                allvars.append(classes[-2] + "_" + f)
+                vars = []
+                vars.append([allvars[2], allvars[1]])
+                vars.append([allvars[0], allvars[2]])
+
+            for (var, calledvar) in vars:
+                if data.getVar(var, d) and not data.getVarFlag(var, 'export_func', d):
+                    continue
+
+                if data.getVar(var, d):
+                    data.setVarFlag(var, 'python', None, d)
+                    data.setVarFlag(var, 'func', None, d)
+
+                for flag in [ "func", "python" ]:
+                    if data.getVarFlag(calledvar, flag, d):
+                        data.setVarFlag(var, flag, data.getVarFlag(calledvar, flag, d), d)
+                for flag in [ "dirs" ]:
+                    if data.getVarFlag(var, flag, d):
+                        data.setVarFlag(calledvar, flag, data.getVarFlag(var, flag, d), d)
+
+                if data.getVarFlag(calledvar, "python", d):
+                    data.setVar(var, "\tbb.build.exec_func('" + calledvar + "', d)\n", d)
+                else:
+                    data.setVar(var, "\t" + calledvar + "\n", d)
+                data.setVarFlag(var, 'export_func', '1', d)
+
+        return
+
+    m = __addtask_regexp__.match(s)
+    if m:
+        func = m.group("func")
+        before = m.group("before")
+        after = m.group("after")
+        if func is None:
+            return
+        var = "do_" + func
+
+        data.setVarFlag(var, "task", 1, d)
+
+        if after is not None:
+#           set up deps for function
+            data.setVarFlag(var, "deps", after.split(), d)
+        if before is not None:
+#           set up things that depend on this func
+            data.setVarFlag(var, "postdeps", before.split(), d)
+        return
+
+    m = __addhandler_regexp__.match(s)
+    if m:
+        fns = m.group(1)
+        hs = __word__.findall(fns)
+        for h in hs:
+            data.setVarFlag(h, "handler", 1, d)
+        return
+
+    m = __inherit_regexp__.match(s)
+    if m:
+
+        files = m.group(1)
+        n = __word__.findall(files)
+        inherit(n, d)
+        return
+
+    from bb.parse import ConfHandler
+    return ConfHandler.feeder(lineno, s, fn, d)
+
+__pkgsplit_cache__={}
+def vars_from_file(mypkg, d):
+    if not mypkg:
+        return (None, None, None)
+    if mypkg in __pkgsplit_cache__:
+        return __pkgsplit_cache__[mypkg]
+
+    myfile = os.path.splitext(os.path.basename(mypkg))
+    parts = myfile[0].split('_')
+    __pkgsplit_cache__[mypkg] = parts
+    exp = 3 - len(parts)
+    tmplist = []
+    while exp != 0:
+        exp -= 1
+        tmplist.append(None)
+    parts.extend(tmplist)
+    return parts
+
+def set_additional_vars(file, d, include):
+    """Deduce rest of variables, e.g. ${A} out of ${SRC_URI}"""
+
+    debug(2,"BB %s: set_additional_vars" % file)
+
+    src_uri = data.getVar('SRC_URI', d)
+    if not src_uri:
+        return
+    src_uri = data.expand(src_uri, d)
+
+    a = data.getVar('A', d)
+    if a:
+        a = data.expand(a, d).split()
+    else:
+        a = []
+
+    from bb import fetch
+    try:
+        fetch.init(src_uri.split(), d)
+    except fetch.NoMethodError:
+        pass
+    except bb.MalformedUrl,e:
+        raise ParseError("Unable to generate local paths for SRC_URI due to malformed uri: %s" % e)
+
+    a += fetch.localpaths(d)
+    del fetch
+    data.setVar('A', " ".join(a), d)
+
+
+# Add us to the handlers list
+from bb.parse import handlers
+handlers.append({'supports': supports, 'handle': handle, 'init': init})
+del handlers
diff --git a/bitbake/lib/bb/parse/parse_py/BBHandler.pyc b/bitbake/lib/bb/parse/parse_py/BBHandler.pyc
new file mode 100644
index 0000000000..bfaa4c6004
--- /dev/null
+++ b/bitbake/lib/bb/parse/parse_py/BBHandler.pyc
diff --git a/bitbake/lib/bb/parse/parse_py/ConfHandler.py b/bitbake/lib/bb/parse/parse_py/ConfHandler.py
new file mode 100644
index 0000000000..41ef96d557
--- /dev/null
+++ b/bitbake/lib/bb/parse/parse_py/ConfHandler.py
@@ -0,0 +1,199 @@
+#!/usr/bin/env python
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+"""class for handling configuration data files
+
+   Reads a .conf file and obtains its metadata
+
+   Copyright (C) 2003, 2004  Chris Larson
+   Copyright (C) 2003, 2004  Phil Blundell
+   
+   This program is free software; you can redistribute it and/or modify it under
+   the terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 2 of the License, or (at your option) any later
+   version.
+   
+   This program is distributed in the hope that it will be useful, but WITHOUT
+   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+   FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License along with
+   this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+   Place, Suite 330, Boston, MA 02111-1307 USA.""" 
+
+import re, bb.data, os, sys
+from bb import debug, fatal
+from bb.parse import ParseError
+
+#__config_regexp__  = re.compile( r"(?P<exp>export\s*)?(?P<var>[a-zA-Z0-9\-_+.${}]+)\s*(?P<colon>:)?(?P<ques>\?)?=\s*(?P<apo>['\"]?)(?P<value>.*)(?P=apo)$")
+__config_regexp__  = re.compile( r"(?P<exp>export\s*)?(?P<var>[a-zA-Z0-9\-_+.${}/]+)(\[(?P<flag>[a-zA-Z0-9\-_+.]+)\])?\s*((?P<colon>:=)|(?P<ques>\?=)|(?P<append>\+=)|(?P<prepend>=\+)|(?P<predot>=\.)|(?P<postdot>\.=)|=)\s*(?P<apo>['\"]?)(?P<value>.*)(?P=apo)$")
+__include_regexp__ = re.compile( r"include\s+(.+)" )
+
+def init(data):
+    if not bb.data.getVar('TOPDIR', data):
+        bb.data.setVar('TOPDIR', os.getcwd(), data)
+    if not bb.data.getVar('BBPATH', data):
+        bb.data.setVar('BBPATH', os.path.join(sys.prefix, 'share', 'bitbake'), data)
+
+def supports(fn, d):
+    return localpath(fn, d)[-5:] == ".conf"
+
+def localpath(fn, d):
+    if os.path.exists(fn):
+        return fn
+
+    localfn = None
+    try:
+        localfn = bb.fetch.localpath(fn, d)
+    except bb.MalformedUrl:
+        pass
+
+    if not localfn:
+        localfn = fn
+    return localfn
+
+def obtain(fn, data = bb.data.init()):
+    import sys, bb
+    fn = bb.data.expand(fn, data)
+    localfn = bb.data.expand(localpath(fn, data), data)
+
+    if localfn != fn:
+        dldir = bb.data.getVar('DL_DIR', data, 1)
+        if not dldir:
+            debug(1, "obtain: DL_DIR not defined")
+            return localfn
+        bb.mkdirhier(dldir)
+        try:
+            bb.fetch.init([fn])
+        except bb.fetch.NoMethodError:
+            (type, value, traceback) = sys.exc_info()
+            debug(1, "obtain: no method: %s" % value)
+            return localfn
+
+        try:
+            bb.fetch.go(data)
+        except bb.fetch.MissingParameterError:
+            (type, value, traceback) = sys.exc_info()
+            debug(1, "obtain: missing parameters: %s" % value)
+            return localfn
+        except bb.fetch.FetchError:
+            (type, value, traceback) = sys.exc_info()
+            debug(1, "obtain: failed: %s" % value)
+            return localfn
+    return localfn
+
+
+def include(oldfn, fn, data = bb.data.init()):
+    if oldfn == fn: # prevent infinate recursion
+        return None
+
+    import bb
+    fn = bb.data.expand(fn, data)
+    oldfn = bb.data.expand(oldfn, data)
+
+    from bb.parse import handle
+    try:
+        ret = handle(fn, data, 1)
+    except IOError:
+        debug(2, "CONF file '%s' not found" % fn)
+
+def handle(fn, data = bb.data.init(), include = 0):
+    if include:
+        inc_string = "including"
+    else:
+        inc_string = "reading"
+    init(data)
+
+    if include == 0:
+        bb.data.inheritFromOS(data)
+        oldfile = None
+    else:
+        oldfile = bb.data.getVar('FILE', data)
+
+    fn = obtain(fn, data)
+    bbpath = []
+    if not os.path.isabs(fn):
+        f = None
+        vbbpath = bb.data.getVar("BBPATH", data)
+        if vbbpath:
+            bbpath += vbbpath.split(":")
+        for p in bbpath:
+            currname = os.path.join(bb.data.expand(p, data), fn)
+            if os.access(currname, os.R_OK):
+                f = open(currname, 'r')
+                abs_fn = currname
+                debug(1, "CONF %s %s" % (inc_string, currname))
+                break
+        if f is None:
+            raise IOError("file not found")
+    else:
+        f = open(fn,'r')
+        debug(1, "CONF %s %s" % (inc_string,fn))
+        abs_fn = fn
+
+    if include:
+        bb.parse.mark_dependency(data, abs_fn)
+
+    lineno = 0
+    bb.data.setVar('FILE', fn, data)
+    while 1:
+        lineno = lineno + 1
+        s = f.readline()
+        if not s: break
+        w = s.strip()
+        if not w: continue          # skip empty lines
+        s = s.rstrip()
+        if s[0] == '#': continue    # skip comments
+        while s[-1] == '\\':
+            s2 = f.readline()[:-1].strip()
+            lineno = lineno + 1
+            s = s[:-1] + s2
+        feeder(lineno, s, fn, data)
+
+    if oldfile:
+        bb.data.setVar('FILE', oldfile, data)
+    return data
+
+def feeder(lineno, s, fn, data = bb.data.init()):
+    m = __config_regexp__.match(s)
+    if m:
+        groupd = m.groupdict()
+        key = groupd["var"]
+        if "exp" in groupd and groupd["exp"] != None:
+            bb.data.setVarFlag(key, "export", 1, data)
+        if "ques" in groupd and groupd["ques"] != None:
+            val = bb.data.getVar(key, data)
+            if val == None:
+                val = groupd["value"]
+        elif "colon" in groupd and groupd["colon"] != None:
+            val = bb.data.expand(groupd["value"], data)
+        elif "append" in groupd and groupd["append"] != None:
+            val = "%s %s" % ((bb.data.getVar(key, data) or ""), groupd["value"])
+        elif "prepend" in groupd and groupd["prepend"] != None:
+            val = "%s %s" % (groupd["value"], (bb.data.getVar(key, data) or ""))
+        elif "postdot" in groupd and groupd["postdot"] != None:
+            val = "%s%s" % ((bb.data.getVar(key, data) or ""), groupd["value"])
+        elif "predot" in groupd and groupd["predot"] != None:
+            val = "%s%s" % (groupd["value"], (bb.data.getVar(key, data) or ""))
+        else:
+            val = groupd["value"]
+        if 'flag' in groupd and groupd['flag'] != None:
+#           bb.note("setVarFlag(%s, %s, %s, data)" % (key, groupd['flag'], val))
+            bb.data.setVarFlag(key, groupd['flag'], val, data)
+        else:
+            bb.data.setVar(key, val, data)
+        return
+
+    m = __include_regexp__.match(s)
+    if m:
+        s = bb.data.expand(m.group(1), data)
+#       debug(2, "CONF %s:%d: including %s" % (fn, lineno, s))
+        include(fn, s, data)
+        return
+
+    raise ParseError("%s:%d: unparsed line: '%s'" % (fn, lineno, s));
+
+# Add us to the handlers list
+from bb.parse import handlers
+handlers.append({'supports': supports, 'handle': handle, 'init': init})
+del handlers
diff --git a/bitbake/lib/bb/parse/parse_py/ConfHandler.pyc b/bitbake/lib/bb/parse/parse_py/ConfHandler.pyc
new file mode 100644
index 0000000000..e0ec666ed1
--- /dev/null
+++ b/bitbake/lib/bb/parse/parse_py/ConfHandler.pyc
diff --git a/bitbake/lib/bb/parse/parse_py/__init__.py b/bitbake/lib/bb/parse/parse_py/__init__.py
new file mode 100644
index 0000000000..6a2ce4059d
--- /dev/null
+++ b/bitbake/lib/bb/parse/parse_py/__init__.py
@@ -0,0 +1,32 @@
+#!/usr/bin/env python
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+"""
+BitBake Parsers
+
+File parsers for the BitBake build tools.
+
+Copyright (C) 2003, 2004  Chris Larson
+Copyright (C) 2003, 2004  Phil Blundell
+
+This program is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free Software
+Foundation; either version 2 of the License, or (at your option) any later
+version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+Place, Suite 330, Boston, MA 02111-1307 USA.
+
+Based on functions from the base bb module, Copyright 2003 Holger Schurig
+"""
+__version__ = '1.0'
+
+__all__ = [ 'ConfHandler', 'BBHandler']
+
+import ConfHandler
+import BBHandler
diff --git a/bitbake/lib/bb/parse/parse_py/__init__.pyc b/bitbake/lib/bb/parse/parse_py/__init__.pyc
new file mode 100644
index 0000000000..c081e02727
--- /dev/null
+++ b/bitbake/lib/bb/parse/parse_py/__init__.pyc
diff --git a/bitbake/lib/bb/shell.py b/bitbake/lib/bb/shell.py
new file mode 100644
index 0000000000..97e61e1169
--- /dev/null
+++ b/bitbake/lib/bb/shell.py
@@ -0,0 +1,779 @@
+#!/usr/bin/env python
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+##########################################################################
+#
+# Copyright (C) 2005 Michael 'Mickey' Lauer <mickey@Vanille.de>, Vanille Media
+#
+# This program is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free Software
+# Foundation; version 2 of the License.
+#
+# This program is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+# Place, Suite 330, Boston, MA 02111-1307 USA.
+#
+##########################################################################
+
+"""
+BitBake Shell
+
+IDEAS:
+    * list defined tasks per package
+    * list classes
+    * toggle force
+    * command to reparse just one (or more) bbfile(s)
+    * automatic check if reparsing is necessary (inotify?)
+    * frontend for bb file manipulation
+    * more shell-like features:
+        - output control, i.e. pipe output into grep, sort, etc.
+        - job control, i.e. bring running commands into background and foreground
+    * start parsing in background right after startup
+    * ncurses interface
+
+PROBLEMS:
+    * force doesn't always work
+    * readline completion for commands with more than one parameters
+
+"""
+
+##########################################################################
+# Import and setup global variables
+##########################################################################
+
+try:
+    set
+except NameError:
+    from sets import Set as set
+import sys, os, imp, readline, socket, httplib, urllib, commands, popen2, copy, shlex, Queue, fnmatch
+imp.load_source( "bitbake", os.path.dirname( sys.argv[0] )+"/bitbake" )
+from bb import data, parse, build, fatal
+
+__version__ = "0.5.2"
+__credits__ = """BitBake Shell Version %s (C) 2005 Michael 'Mickey' Lauer <mickey@Vanille.de>
+Type 'help' for more information, press CTRL-D to exit.""" % __version__
+
+cmds = {}
+leave_mainloop = False
+last_exception = None
+cooker = None
+parsed = False
+initdata = None
+debug = os.environ.get( "BBSHELL_DEBUG", "" )
+
+##########################################################################
+# Class BitBakeShellCommands
+##########################################################################
+
+class BitBakeShellCommands:
+    """This class contains the valid commands for the shell"""
+
+    def __init__( self, shell ):
+        """Register all the commands"""
+        self._shell = shell
+        for attr in BitBakeShellCommands.__dict__:
+            if not attr.startswith( "_" ):
+                if attr.endswith( "_" ):
+                    command = attr[:-1].lower()
+                else:
+                    command = attr[:].lower()
+                method = getattr( BitBakeShellCommands, attr )
+                debugOut( "registering command '%s'" % command )
+                # scan number of arguments
+                usage = getattr( method, "usage", "" )
+                if usage != "<...>":
+                    numArgs = len( usage.split() )
+                else:
+                    numArgs = -1
+                shell.registerCommand( command, method, numArgs, "%s %s" % ( command, usage ), method.__doc__ )
+
+    def _checkParsed( self ):
+        if not parsed:
+            print "SHELL: This command needs to parse bbfiles..."
+            self.parse( None )
+
+    def _findProvider( self, item ):
+        self._checkParsed()
+        preferred = data.getVar( "PREFERRED_PROVIDER_%s" % item, cooker.configuration.data, 1 )
+        if not preferred: preferred = item
+        try:
+            lv, lf, pv, pf = cooker.findBestProvider( preferred )
+        except KeyError:
+            if item in cooker.status.providers:
+                pf = cooker.status.providers[item][0]
+            else:
+                pf = None
+        return pf
+
+    def alias( self, params ):
+        """Register a new name for a command"""
+        new, old = params
+        if not old in cmds:
+            print "ERROR: Command '%s' not known" % old
+        else:
+            cmds[new] = cmds[old]
+            print "OK"
+    alias.usage = "<alias> <command>"
+
+    def buffer( self, params ):
+        """Dump specified output buffer"""
+        index = params[0]
+        print self._shell.myout.buffer( int( index ) )
+    buffer.usage = "<index>"
+
+    def buffers( self, params ):
+        """Show the available output buffers"""
+        commands = self._shell.myout.bufferedCommands()
+        if not commands:
+            print "SHELL: No buffered commands available yet. Start doing something."
+        else:
+            print "="*35, "Available Output Buffers", "="*27
+            for index, cmd in enumerate( commands ):
+                print "| %s %s" % ( str( index ).ljust( 3 ), cmd )
+            print "="*88
+
+    def build( self, params, cmd = "build" ):
+        """Build a providee"""
+        globexpr = params[0]
+        self._checkParsed()
+        names = globfilter( cooker.status.pkg_pn.keys(), globexpr )
+        if len( names ) == 0: names = [ globexpr ]
+        print "SHELL: Building %s" % ' '.join( names )
+
+        oldcmd = cooker.configuration.cmd
+        cooker.configuration.cmd = cmd
+        cooker.build_cache = []
+        cooker.build_cache_fail = []
+
+        for name in names:
+            try:
+                cooker.buildProvider( name )
+            except build.EventException, e:
+                print "ERROR: Couldn't build '%s'" % name
+                global last_exception
+                last_exception = e
+                break
+
+        cooker.configuration.cmd = oldcmd
+
+    build.usage = "<providee>"
+
+    def clean( self, params ):
+        """Clean a providee"""
+        self.build( params, "clean" )
+    clean.usage = "<providee>"
+
+    def compile( self, params ):
+        """Execute 'compile' on a providee"""
+        self.build( params, "compile" )
+    compile.usage = "<providee>"
+
+    def configure( self, params ):
+        """Execute 'configure' on a providee"""
+        self.build( params, "configure" )
+    configure.usage = "<providee>"
+
+    def edit( self, params ):
+        """Call $EDITOR on a providee"""
+        name = params[0]
+        bbfile = self._findProvider( name )
+        if bbfile is not None:
+            os.system( "%s %s" % ( os.environ.get( "EDITOR", "vi" ), bbfile ) )
+        else:
+            print "ERROR: Nothing provides '%s'" % name
+    edit.usage = "<providee>"
+
+    def environment( self, params ):
+        """Dump out the outer BitBake environment (see bbread)"""
+        data.emit_env(sys.__stdout__, cooker.configuration.data, True)
+
+    def exit_( self, params ):
+        """Leave the BitBake Shell"""
+        debugOut( "setting leave_mainloop to true" )
+        global leave_mainloop
+        leave_mainloop = True
+
+    def fetch( self, params ):
+        """Fetch a providee"""
+        self.build( params, "fetch" )
+    fetch.usage = "<providee>"
+
+    def fileBuild( self, params, cmd = "build" ):
+        """Parse and build a .bb file"""
+        name = params[0]
+        bf = completeFilePath( name )
+        print "SHELL: Calling '%s' on '%s'" % ( cmd, bf )
+
+        oldcmd = cooker.configuration.cmd
+        cooker.configuration.cmd = cmd
+        cooker.build_cache = []
+        cooker.build_cache_fail = []
+
+        thisdata = copy.deepcopy( initdata )
+        # Caution: parse.handle modifies thisdata, hence it would
+        # lead to pollution cooker.configuration.data, which is
+        # why we use it on a safe copy we obtained from cooker right after
+        # parsing the initial *.conf files
+        try:
+            bbfile_data = parse.handle( bf, thisdata )
+        except parse.ParseError:
+            print "ERROR: Unable to open or parse '%s'" % bf
+        else:
+            item = data.getVar('PN', bbfile_data, 1)
+            data.setVar( "_task_cache", [], bbfile_data ) # force
+            try:
+                cooker.tryBuildPackage( os.path.abspath( bf ), item, bbfile_data )
+            except build.EventException, e:
+                print "ERROR: Couldn't build '%s'" % name
+                global last_exception
+                last_exception = e
+
+        cooker.configuration.cmd = oldcmd
+    fileBuild.usage = "<bbfile>"
+
+    def fileClean( self, params ):
+        """Clean a .bb file"""
+        self.fileBuild( params, "clean" )
+    fileClean.usage = "<bbfile>"
+
+    def fileEdit( self, params ):
+        """Call $EDITOR on a .bb file"""
+        name = params[0]
+        os.system( "%s %s" % ( os.environ.get( "EDITOR", "vi" ), completeFilePath( name ) ) )
+    fileEdit.usage = "<bbfile>"
+
+    def fileRebuild( self, params ):
+        """Rebuild (clean & build) a .bb file"""
+        self.fileClean( params )
+        self.fileBuild( params )
+    fileRebuild.usage = "<bbfile>"
+
+    def force( self, params ):
+        """Toggle force task execution flag (see bitbake -f)"""
+        cooker.configuration.force = not cooker.configuration.force
+        print "SHELL: Force Flag is now '%s'" % repr( cooker.configuration.force )
+
+    def help( self, params ):
+        """Show a comprehensive list of commands and their purpose"""
+        print "="*30, "Available Commands", "="*30
+        allcmds = cmds.keys()
+        allcmds.sort()
+        for cmd in allcmds:
+            function,numparams,usage,helptext = cmds[cmd]
+            print "| %s | %s" % (usage.ljust(30), helptext)
+        print "="*78
+
+    def lastError( self, params ):
+        """Show the reason or log that was produced by the last BitBake event exception"""
+        if last_exception is None:
+            print "SHELL: No Errors yet (Phew)..."
+        else:
+            reason, event = last_exception.args
+            print "SHELL: Reason for the last error: '%s'" % reason
+            if ':' in reason:
+                msg, filename = reason.split( ':' )
+                filename = filename.strip()
+                print "SHELL: Dumping log file for last error:"
+                try:
+                    print open( filename ).read()
+                except IOError:
+                    print "ERROR: Couldn't open '%s'" % filename
+
+    def match( self, params ):
+        """Dump all files or providers matching a glob expression"""
+        what, globexpr = params
+        if what == "files":
+            self._checkParsed()
+            for key in globfilter( cooker.pkgdata.keys(), globexpr ): print key
+        elif what == "providers":
+            self._checkParsed()
+            for key in globfilter( cooker.status.pkg_pn.keys(), globexpr ): print key
+        else:
+            print "Usage: match %s" % self.print_.usage
+    match.usage = "<files|providers> <glob>"
+
+    def new( self, params ):
+        """Create a new .bb file and open the editor"""
+        dirname, filename = params
+        packages = '/'.join( data.getVar( "BBFILES", cooker.configuration.data, 1 ).split('/')[:-2] )
+        fulldirname = "%s/%s" % ( packages, dirname )
+
+        if not os.path.exists( fulldirname ):
+            print "SHELL: Creating '%s'" % fulldirname
+            os.mkdir( fulldirname )
+        if os.path.exists( fulldirname ) and os.path.isdir( fulldirname ):
+            if os.path.exists( "%s/%s" % ( fulldirname, filename ) ):
+                print "SHELL: ERROR: %s/%s already exists" % ( fulldirname, filename )
+                return False
+            print "SHELL: Creating '%s/%s'" % ( fulldirname, filename )
+            newpackage = open( "%s/%s" % ( fulldirname, filename ), "w" )
+            print >>newpackage,"""DESCRIPTION = ""
+SECTION = ""
+AUTHOR = ""
+HOMEPAGE = ""
+MAINTAINER = ""
+LICENSE = "GPL"
+PR = "r0"
+
+SRC_URI = ""
+
+#inherit base
+
+#do_configure() {
+#
+#}
+
+#do_compile() {
+#
+#}
+
+#do_stage() {
+#
+#}
+
+#do_install() {
+#
+#}
+"""
+            newpackage.close()
+            os.system( "%s %s/%s" % ( os.environ.get( "EDITOR" ), fulldirname, filename ) )
+    new.usage = "<directory> <filename>"
+
+    def pasteBin( self, params ):
+        """Send a command + output buffer to http://pastebin.com"""
+        index = params[0]
+        contents = self._shell.myout.buffer( int( index ) )
+        status, error, location = sendToPastebin( contents )
+        if status == 302:
+            print "SHELL: Pasted to %s" % location
+        else:
+            print "ERROR: %s %s" % ( status, error )
+    pasteBin.usage = "<index>"
+
+    def pasteLog( self, params ):
+        """Send the last event exception error log (if there is one) to http://pastebin.com"""
+        if last_exception is None:
+            print "SHELL: No Errors yet (Phew)..."
+        else:
+            reason, event = last_exception.args
+            print "SHELL: Reason for the last error: '%s'" % reason
+            if ':' in reason:
+                msg, filename = reason.split( ':' )
+                filename = filename.strip()
+                print "SHELL: Pasting log file to pastebin..."
+
+                status, error, location = sendToPastebin( open( filename ).read() )
+
+                if status == 302:
+                    print "SHELL: Pasted to %s" % location
+                else:
+                    print "ERROR: %s %s" % ( status, error )
+
+    def patch( self, params ):
+        """Execute 'patch' command on a providee"""
+        self.build( params, "patch" )
+    patch.usage = "<providee>"
+
+    def parse( self, params ):
+        """(Re-)parse .bb files and calculate the dependency graph"""
+        cooker.status = cooker.ParsingStatus()
+        ignore = data.getVar("ASSUME_PROVIDED", cooker.configuration.data, 1) or ""
+        cooker.status.ignored_dependencies = set( ignore.split() )
+        cooker.handleCollections( data.getVar("BBFILE_COLLECTIONS", cooker.configuration.data, 1) )
+
+        cooker.collect_bbfiles( cooker.myProgressCallback )
+        cooker.buildDepgraph()
+        global parsed
+        parsed = True
+        print
+
+    def getvar( self, params ):
+        """Dump the contents of an outer BitBake environment variable"""
+        var = params[0]
+        value = data.getVar( var, cooker.configuration.data, 1 )
+        print value
+    getvar.usage = "<variable>"
+
+    def peek( self, params ):
+        """Dump contents of variable defined in providee's metadata"""
+        name, var = params
+        bbfile = self._findProvider( name )
+        if bbfile is not None:
+            value = cooker.pkgdata[bbfile].getVar( var, 1 )
+            print value
+        else:
+            print "ERROR: Nothing provides '%s'" % name
+    peek.usage = "<providee> <variable>"
+
+    def poke( self, params ):
+        """Set contents of variable defined in providee's metadata"""
+        name, var, value = params
+        bbfile = self._findProvider( name )
+        d = cooker.pkgdata[bbfile]
+        if bbfile is not None:
+            data.setVar( var, value, d )
+
+            # mark the change semi persistant
+            cooker.pkgdata.setDirty(bbfile, d)
+            print "OK"
+        else:
+            print "ERROR: Nothing provides '%s'" % name
+    poke.usage = "<providee> <variable> <value>"
+
+    def print_( self, params ):
+        """Dump all files or providers"""
+        what = params[0]
+        if what == "files":
+            self._checkParsed()
+            for key in cooker.pkgdata.keys(): print key
+        elif what == "providers":
+            self._checkParsed()
+            for key in cooker.status.providers.keys(): print key
+        else:
+            print "Usage: print %s" % self.print_.usage
+    print_.usage = "<files|providers>"
+
+    def python( self, params ):
+        """Enter the expert mode - an interactive BitBake Python Interpreter"""
+        sys.ps1 = "EXPERT BB>>> "
+        sys.ps2 = "EXPERT BB... "
+        import code
+        interpreter = code.InteractiveConsole( dict( globals() ) )
+        interpreter.interact( "SHELL: Expert Mode - BitBake Python %s\nType 'help' for more information, press CTRL-D to switch back to BBSHELL." % sys.version )
+
+    def showdata( self, params ):
+        """Execute 'showdata' on a providee"""
+        self.build( params, "showdata" )
+    showdata.usage = "<providee>"
+
+    def setVar( self, params ):
+        """Set an outer BitBake environment variable"""
+        var, value = params
+        data.setVar( var, value, cooker.configuration.data )
+        print "OK"
+    setVar.usage = "<variable> <value>"
+
+    def rebuild( self, params ):
+        """Clean and rebuild a .bb file or a providee"""
+        self.build( params, "clean" )
+        self.build( params, "build" )
+    rebuild.usage = "<providee>"
+
+    def shell( self, params ):
+        """Execute a shell command and dump the output"""
+        if params != "":
+            print commands.getoutput( " ".join( params ) )
+    shell.usage = "<...>"
+
+    def stage( self, params ):
+        """Execute 'stage' on a providee"""
+        self.build( params, "stage" )
+    stage.usage = "<providee>"
+
+    def status( self, params ):
+        """<just for testing>"""
+        print "-" * 78
+        print "build cache = '%s'" % cooker.build_cache
+        print "build cache fail = '%s'" % cooker.build_cache_fail
+        print "building list = '%s'" % cooker.building_list
+        print "build path = '%s'" % cooker.build_path
+        print "consider_msgs_cache = '%s'" % cooker.consider_msgs_cache
+        print "build stats = '%s'" % cooker.stats
+        if last_exception is not None: print "last_exception = '%s'" % repr( last_exception.args )
+        print "memory output contents = '%s'" % self._shell.myout._buffer
+
+    def test( self, params ):
+        """<just for testing>"""
+        print "testCommand called with '%s'" % params
+
+    def unpack( self, params ):
+        """Execute 'unpack' on a providee"""
+        self.build( params, "unpack" )
+    unpack.usage = "<providee>"
+
+    def which( self, params ):
+        """Computes the providers for a given providee"""
+        item = params[0]
+
+        self._checkParsed()
+
+        preferred = data.getVar( "PREFERRED_PROVIDER_%s" % item, cooker.configuration.data, 1 )
+        if not preferred: preferred = item
+
+        try:
+            lv, lf, pv, pf = cooker.findBestProvider( preferred )
+        except KeyError:
+            lv, lf, pv, pf = (None,)*4
+
+        try:
+            providers = cooker.status.providers[item]
+        except KeyError:
+            print "SHELL: ERROR: Nothing provides", preferred
+        else:
+            for provider in providers:
+                if provider == pf: provider = " (***) %s" % provider
+                else:              provider = "       %s" % provider
+                print provider
+    which.usage = "<providee>"
+
+##########################################################################
+# Common helper functions
+##########################################################################
+
+def completeFilePath( bbfile ):
+    """Get the complete bbfile path"""
+    if not cooker.pkgdata: return bbfile
+    for key in cooker.pkgdata.keys():
+        if key.endswith( bbfile ):
+            return key
+    return bbfile
+
+def sendToPastebin( content ):
+    """Send content to http://www.pastebin.com"""
+    mydata = {}
+    mydata["parent_pid"] = ""
+    mydata["format"] = "bash"
+    mydata["code2"] = content
+    mydata["paste"] = "Send"
+    mydata["poster"] = "%s@%s" % ( os.environ.get( "USER", "unknown" ), socket.gethostname() or "unknown" )
+    params = urllib.urlencode( mydata )
+    headers = {"Content-type": "application/x-www-form-urlencoded","Accept": "text/plain"}
+
+    conn = httplib.HTTPConnection( "pastebin.com:80" )
+    conn.request("POST", "/", params, headers )
+
+    response = conn.getresponse()
+    conn.close()
+
+    return response.status, response.reason, response.getheader( "location" ) or "unknown"
+
+def completer( text, state ):
+    """Return a possible readline completion"""
+    debugOut( "completer called with text='%s', state='%d'" % ( text, state ) )
+
+    if state == 0:
+        line = readline.get_line_buffer()
+        if " " in line:
+            line = line.split()
+            # we are in second (or more) argument
+            if line[0] in cmds and hasattr( cmds[line[0]][0], "usage" ): # known command and usage
+                u = getattr( cmds[line[0]][0], "usage" ).split()[0]
+                if u == "<variable>":
+                    allmatches = cooker.configuration.data.keys()
+                elif u == "<bbfile>":
+                    if cooker.pkgdata is None: allmatches = [ "(No Matches Available. Parsed yet?)" ]
+                    else: allmatches = [ x.split("/")[-1] for x in cooker.pkgdata.keys() ]
+                elif u == "<providee>":
+                    if cooker.pkgdata is None: allmatches = [ "(No Matches Available. Parsed yet?)" ]
+                    else: allmatches = cooker.status.providers.iterkeys()
+                else: allmatches = [ "(No tab completion available for this command)" ]
+            else: allmatches = [ "(No tab completion available for this command)" ]
+        else:
+            # we are in first argument
+            allmatches = cmds.iterkeys()
+
+        completer.matches = [ x for x in allmatches if x[:len(text)] == text ]
+        #print "completer.matches = '%s'" % completer.matches
+    if len( completer.matches ) > state:
+        return completer.matches[state]
+    else:
+        return None
+
+def debugOut( text ):
+    if debug:
+        sys.stderr.write( "( %s )\n" % text )
+
+def columnize( alist, width = 80 ):
+    """
+    A word-wrap function that preserves existing line breaks
+    and most spaces in the text. Expects that existing line
+    breaks are posix newlines (\n).
+    """
+    return reduce(lambda line, word, width=width: '%s%s%s' %
+                  (line,
+                   ' \n'[(len(line[line.rfind('\n')+1:])
+                         + len(word.split('\n',1)[0]
+                              ) >= width)],
+                   word),
+                  alist
+                 )
+
+def globfilter( names, pattern ):
+    return fnmatch.filter( names, pattern )
+
+##########################################################################
+# Class MemoryOutput
+##########################################################################
+
+class MemoryOutput:
+    """File-like output class buffering the output of the last 10 commands"""
+    def __init__( self, delegate ):
+        self.delegate = delegate
+        self._buffer = []
+        self.text = []
+        self._command = None
+
+    def startCommand( self, command ):
+        self._command = command
+        self.text = []
+    def endCommand( self ):
+        if self._command is not None:
+            if len( self._buffer ) == 10: del self._buffer[0]
+            self._buffer.append( ( self._command, self.text ) )
+    def removeLast( self ):
+        if self._buffer:
+            del self._buffer[ len( self._buffer ) - 1 ]
+        self.text = []
+        self._command = None
+    def lastBuffer( self ):
+        if self._buffer:
+            return self._buffer[ len( self._buffer ) -1 ][1]
+    def bufferedCommands( self ):
+        return [ cmd for cmd, output in self._buffer ]
+    def buffer( self, i ):
+        if i < len( self._buffer ):
+            return "BB>> %s\n%s" % ( self._buffer[i][0], "".join( self._buffer[i][1] ) )
+        else: return "ERROR: Invalid buffer number. Buffer needs to be in (0, %d)" % ( len( self._buffer ) - 1 )
+    def write( self, text ):
+        if self._command is not None and text != "BB>> ": self.text.append( text )
+        if self.delegate is not None: self.delegate.write( text )
+    def flush( self ):
+        return self.delegate.flush()
+    def fileno( self ):
+        return self.delegate.fileno()
+    def isatty( self ):
+        return self.delegate.isatty()
+
+##########################################################################
+# Class BitBakeShell
+##########################################################################
+
+class BitBakeShell:
+
+    def __init__( self ):
+        """Register commands and set up readline"""
+        self.commandQ = Queue.Queue()
+        self.commands = BitBakeShellCommands( self )
+        self.myout = MemoryOutput( sys.stdout )
+        self.historyfilename = os.path.expanduser( "~/.bbsh_history" )
+        self.startupfilename = os.path.expanduser( "~/.bbsh_startup" )
+
+        readline.set_completer( completer )
+        readline.set_completer_delims( " " )
+        readline.parse_and_bind("tab: complete")
+
+        try:
+            readline.read_history_file( self.historyfilename )
+        except IOError:
+            pass  # It doesn't exist yet.
+
+        print __credits__
+
+        # save initial cooker configuration (will be reused in file*** commands)
+        global initdata
+        initdata = copy.deepcopy( cooker.configuration.data )
+
+    def cleanup( self ):
+        """Write readline history and clean up resources"""
+        debugOut( "writing command history" )
+        try:
+            readline.write_history_file( self.historyfilename )
+        except:
+            print "SHELL: Unable to save command history"
+
+    def registerCommand( self, command, function, numparams = 0, usage = "", helptext = "" ):
+        """Register a command"""
+        if usage == "": usage = command
+        if helptext == "": helptext = function.__doc__ or "<not yet documented>"
+        cmds[command] = ( function, numparams, usage, helptext )
+
+    def processCommand( self, command, params ):
+        """Process a command. Check number of params and print a usage string, if appropriate"""
+        debugOut( "processing command '%s'..." % command )
+        try:
+            function, numparams, usage, helptext = cmds[command]
+        except KeyError:
+            print "SHELL: ERROR: '%s' command is not a valid command." % command
+            self.myout.removeLast()
+        else:
+            if (numparams != -1) and (not len( params ) == numparams):
+                print "Usage: '%s'" % usage
+                return
+
+            result = function( self.commands, params )
+            debugOut( "result was '%s'" % result )
+
+    def processStartupFile( self ):
+        """Read and execute all commands found in $HOME/.bbsh_startup"""
+        if os.path.exists( self.startupfilename ):
+            startupfile = open( self.startupfilename, "r" )
+            for cmdline in startupfile:
+                debugOut( "processing startup line '%s'" % cmdline )
+                if not cmdline:
+                    continue
+                if "|" in cmdline:
+                    print "ERROR: '|' in startup file is not allowed. Ignoring line"
+                    continue
+                self.commandQ.put( cmdline.strip() )
+
+    def main( self ):
+        """The main command loop"""
+        while not leave_mainloop:
+            try:
+                if self.commandQ.empty():
+                    sys.stdout = self.myout.delegate
+                    cmdline = raw_input( "BB>> " )
+                    sys.stdout = self.myout
+                else:
+                    cmdline = self.commandQ.get()
+                if cmdline:
+                    allCommands = cmdline.split( ';' )
+                    for command in allCommands:
+                        pipecmd = None
+                        #
+                        # special case for expert mode
+                        if command == 'python':
+                            sys.stdout = self.myout.delegate
+                            self.processCommand( command, "" )
+                            sys.stdout = self.myout
+                        else:
+                            self.myout.startCommand( command )
+                            if '|' in command: # disable output
+                                command, pipecmd = command.split( '|' )
+                                delegate = self.myout.delegate
+                                self.myout.delegate = None
+                            tokens = shlex.split( command, True )
+                            self.processCommand( tokens[0], tokens[1:] or "" )
+                            self.myout.endCommand()
+                            if pipecmd is not None: # restore output
+                                self.myout.delegate = delegate
+
+                                pipe = popen2.Popen4( pipecmd )
+                                pipe.tochild.write( "\n".join( self.myout.lastBuffer() ) )
+                                pipe.tochild.close()
+                                sys.stdout.write( pipe.fromchild.read() )
+                        #
+            except EOFError:
+                print
+                return
+            except KeyboardInterrupt:
+                print
+
+##########################################################################
+# Start function - called from the BitBake command line utility
+##########################################################################
+
+def start( aCooker ):
+    global cooker
+    cooker = aCooker
+    bbshell = BitBakeShell()
+    bbshell.processStartupFile()
+    bbshell.main()
+    bbshell.cleanup()
+
+if __name__ == "__main__":
+    print "SHELL: Sorry, this program should only be called by BitBake."
diff --git a/bitbake/lib/bb/shell.pyc b/bitbake/lib/bb/shell.pyc
new file mode 100644
index 0000000000..7f9d267504
--- /dev/null
+++ b/bitbake/lib/bb/shell.pyc
diff --git a/bitbake/lib/bb/utils.py b/bitbake/lib/bb/utils.py
new file mode 100644
index 0000000000..ee8713a2d0
--- /dev/null
+++ b/bitbake/lib/bb/utils.py
@@ -0,0 +1,71 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+"""
+BitBake Utility Functions
+
+This program is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free Software
+Foundation; either version 2 of the License, or (at your option) any later
+version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+Place, Suite 330, Boston, MA 02111-1307 USA.
+
+This file is part of the BitBake build tools.
+"""
+
+digits = "0123456789"
+ascii_letters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
+
+import re
+
+def explode_version(s):
+    r = []
+    alpha_regexp = re.compile('^([a-zA-Z]+)(.*)$')
+    numeric_regexp = re.compile('^(\d+)(.*)$')
+    while (s != ''):
+        if s[0] in digits:
+            m = numeric_regexp.match(s)
+            r.append(int(m.group(1)))
+            s = m.group(2)
+            continue
+        if s[0] in ascii_letters:
+            m = alpha_regexp.match(s)
+            r.append(m.group(1))
+            s = m.group(2)
+            continue
+        s = s[1:]
+    return r
+
+def vercmp_part(a, b):
+    va = explode_version(a)
+    vb = explode_version(b)
+    while True:
+        if va == []:
+            ca = None
+        else:
+            ca = va.pop(0)
+        if vb == []:
+            cb = None
+        else:
+            cb = vb.pop(0)
+        if ca == None and cb == None:
+            return 0
+        if ca > cb:
+            return 1
+        if ca < cb:
+            return -1
+
+def vercmp(ta, tb):
+    (va, ra) = ta
+    (vb, rb) = tb
+
+    r = vercmp_part(va, vb)
+    if (r == 0):
+        r = vercmp_part(ra, rb)
+    return r
diff --git a/bitbake/lib/bb/utils.pyc b/bitbake/lib/bb/utils.pyc
new file mode 100644
index 0000000000..9f2bc75cbc
--- /dev/null
+++ b/bitbake/lib/bb/utils.pyc