jack: fix build with python3 on host

* first backport from waflib fixes:
| DEBUG: Executing shell function do_configure
| Traceback (most recent call last):
|   File "/OE/build/oe-core/tmp-glibc/work/core2-64-oe-linux/jack/1.9.22/git/./waf", line 166, in <module>
|     from waflib import Scripting
|   File "/OE/build/oe-core/tmp-glibc/work/core2-64-oe-linux/jack/1.9.22/git/waflib/Scripting.py", line 10, in <module>
|     from waflib import Utils, Configure, Logs, Options, ConfigSet, Context, Errors, Build, Node
|   File "/OE/build/oe-core/tmp-glibc/work/core2-64-oe-linux/jack/1.9.22/git/waflib/Configure.py", line 16, in <module>
|     from waflib import ConfigSet, Utils, Options, Logs, Context, Build, Errors
|   File "/OE/build/oe-core/tmp-glibc/work/core2-64-oe-linux/jack/1.9.22/git/waflib/Options.py", line 14, in <module>
|     from waflib import Logs, Utils, Context, Errors
|   File "/OE/build/oe-core/tmp-glibc/work/core2-64-oe-linux/jack/1.9.22/git/waflib/Context.py", line 9, in <module>
|     import os, re, imp, sys
| ModuleNotFoundError: No module named 'imp'

  the 2nd one avoids SyntaxWarning from waf --version which causes
  waf_preconfigure to fail, because SyntaxWarning ends in
    waf_preconfigure to fail, because SyntaxWarning ends in bb.utils.vercmp_string_op:

jack/1.9.22/git $ python3 waf --version
/OE/build/oe-core/tmp-glibc/work/core2-64-oe-linux/jack/1.9.22/git/waflib/Context.py:617: SyntaxWarning: invalid escape sequence '\_'
  """
/OE/build/oe-core/tmp-glibc/work/core2-64-oe-linux/jack/1.9.22/git/waflib/Build.py:107: SyntaxWarning: invalid escape sequence '\*'
  """List of targets to build (default: \*)"""
/OE/build/oe-core/tmp-glibc/work/core2-64-oe-linux/jack/1.9.22/git/waflib/Task.py:1047: SyntaxWarning: invalid escape sequence '\w'
  re_cond = re.compile('(?P<var>\w+)|(?P<or>\|)|(?P<and>&)')
/OE/build/oe-core/tmp-glibc/work/core2-64-oe-linux/jack/1.9.22/git/waflib/TaskGen.py:730: SyntaxWarning: invalid escape sequence '\w'
  re_m4 = re.compile('@(\w+)@', re.M)
waf 2.0.12 (54841218840ffa34fddf834680a5a17db69caa12)

As reported in
https://lists.openembedded.org/g/openembedded-core/message/194348

Signed-off-by: Martin Jansa <martin.jansa@gmail.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

3 files changed, 267 insertions, 1 deletions

diff --git a/meta-oe/recipes-multimedia/jack/jack/0001-Conceal-imp-warnings-in-Python3.patch b/meta-oe/recipes-multimedia/jack/jack/0001-Conceal-imp-warnings-in-Python3.patch
new file mode 100644
index 0000000000..8411d12caf
--- /dev/null
+++ b/meta-oe/recipes-multimedia/jack/jack/0001-Conceal-imp-warnings-in-Python3.patch
@@ -0,0 +1,34 @@
+From f864a2aa29377a77c3aef61ce917cc03d099c430 Mon Sep 17 00:00:00 2001
+From: Thomas Nagy <tnagy@waf.io>
+Date: Wed, 14 Aug 2019 22:05:45 +0200
+Subject: [PATCH] Conceal imp warnings in Python3
+
+---
+Upstream-Status: Backport [from waflib not jack: https://gitlab.com/ita1024/waf/-/commit/d2060dfd8af4edb5824153ff24e207b39ecd67a2.patch]
+
+ waflib/Context.py | 9 ++++++++-
+ 1 file changed, 8 insertions(+), 1 deletion(-)
+
+diff --git a/waflib/Context.py b/waflib/Context.py
+index 761b521f..38ab03f1 100644
+--- a/waflib/Context.py
++++ b/waflib/Context.py
+@@ -6,10 +6,17 @@
+ Classes and functions enabling the command system
+ """
+ 
+-import os, re, imp, sys
++import os, re, sys
+ from waflib import Utils, Errors, Logs
+ import waflib.Node
+ 
++if sys.hexversion > 0x3040000:
++       import types
++       class imp(object):
++               new_module = lambda x: types.ModuleType(x)
++else:
++       import imp
++
+ # the following 3 constants are updated on each new release (do not touch)
+ HEXVERSION=0x2000c00
+ """Constant updated on new releases"""
diff --git a/meta-oe/recipes-multimedia/jack/jack/0002-Fix-all-DeprecationWarning-invalid-escape-sequence.patch b/meta-oe/recipes-multimedia/jack/jack/0002-Fix-all-DeprecationWarning-invalid-escape-sequence.patch
new file mode 100644
index 0000000000..cbced56a67
--- /dev/null
+++ b/meta-oe/recipes-multimedia/jack/jack/0002-Fix-all-DeprecationWarning-invalid-escape-sequence.patch
@@ -0,0 +1,229 @@
+From bcba27168d99a3919b730e6a533cf79ab3b24eee Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Micka=C3=ABl=20Schoentgen?= <contact@tiger-222.fr>
+Date: Sat, 5 Jan 2019 12:02:42 +0100
+Subject: [PATCH] Fix all DeprecationWarning: invalid escape sequence
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Signed-off-by: Mickaël Schoentgen <contact@tiger-222.fr>
+---
+Upstream-Status: Backport [from waflib not jack: https://gitlab.com/ita1024/waf/-/commit/412a9b819e86a0061f990c7245f0f5db76d0eda3]
+
+ waflib/Build.py           |  2 +-
+ waflib/ConfigSet.py       |  2 +-
+ waflib/Context.py         |  2 +-
+ waflib/Task.py            |  2 +-
+ waflib/TaskGen.py         |  2 +-
+ waflib/Tools/c_config.py  |  2 +-
+ waflib/Tools/c_preproc.py |  6 +++---
+ waflib/Tools/msvc.py      | 16 ++++++++--------
+ waflib/Utils.py           |  2 +-
+ waflib/ansiterm.py        |  2 +-
+ 10 files changed, 19 insertions(+), 19 deletions(-)
+
+diff --git a/waflib/Build.py b/waflib/Build.py
+index c9661df1..9e733c9e 100644
+--- a/waflib/Build.py
++++ b/waflib/Build.py
+@@ -104,7 +104,7 @@ class BuildContext(Context.Context):
+                """Amount of jobs to run in parallel"""
+ 
+                self.targets = Options.options.targets
+-               """List of targets to build (default: \*)"""
++               """List of targets to build (default: \\*)"""
+ 
+                self.keep = Options.options.keep
+                """Whether the build should continue past errors"""
+diff --git a/waflib/ConfigSet.py b/waflib/ConfigSet.py
+index 84736c9c..901fba6c 100644
+--- a/waflib/ConfigSet.py
++++ b/waflib/ConfigSet.py
+@@ -11,7 +11,7 @@ The values put in :py:class:`ConfigSet` must be serializable (dicts, lists, stri
+ 
+ import copy, re, os
+ from waflib import Logs, Utils
+-re_imp = re.compile('^(#)*?([^#=]*?)\ =\ (.*?)$', re.M)
++re_imp = re.compile(r'^(#)*?([^#=]*?)\ =\ (.*?)$', re.M)
+ 
+ class ConfigSet(object):
+        """
+diff --git a/waflib/Context.py b/waflib/Context.py
+index 38ab03f1..5799a60a 100644
+--- a/waflib/Context.py
++++ b/waflib/Context.py
+@@ -614,7 +614,7 @@ class Context(ctx):
+                Logs.pprint(color, msg)
+ 
+        def load_special_tools(self, var, ban=[]):
+-               """
++               r"""
+                Loads third-party extensions modules for certain programming languages
+                by trying to list certain files in the extras/ directory. This method
+                is typically called once for a programming language group, see for
+diff --git a/waflib/Task.py b/waflib/Task.py
+index 6aebc607..0c5cb994 100644
+--- a/waflib/Task.py
++++ b/waflib/Task.py
+@@ -1044,7 +1044,7 @@ def funex(c):
+        exec(c, dc)
+        return dc['f']
+ 
+-re_cond = re.compile('(?P<var>\w+)|(?P<or>\|)|(?P<and>&)')
++re_cond = re.compile(r'(?P<var>\w+)|(?P<or>\|)|(?P<and>&)')
+ re_novar = re.compile(r'^(SRC|TGT)\W+.*?$')
+ reg_act = re.compile(r'(?P<backslash>\\)|(?P<dollar>\$\$)|(?P<subst>\$\{(?P<var>\w+)(?P<code>.*?)\})', re.M)
+ def compile_fun_shell(line):
+diff --git a/waflib/TaskGen.py b/waflib/TaskGen.py
+index a74e6431..3776bac1 100644
+--- a/waflib/TaskGen.py
++++ b/waflib/TaskGen.py
+@@ -727,7 +727,7 @@ def sequence_order(self):
+        self.bld.prev = self
+ 
+ 
+-re_m4 = re.compile('@(\w+)@', re.M)
++re_m4 = re.compile(r'@(\w+)@', re.M)
+ 
+ class subst_pc(Task.Task):
+        """
+diff --git a/waflib/Tools/c_config.py b/waflib/Tools/c_config.py
+index d2b3c0d8..60cc0ecd 100644
+--- a/waflib/Tools/c_config.py
++++ b/waflib/Tools/c_config.py
+@@ -239,7 +239,7 @@ def validate_cfg(self, kw):
+ 
+ @conf
+ def exec_cfg(self, kw):
+-       """
++       r"""
+        Executes ``pkg-config`` or other ``-config`` applications to collect configuration flags:
+ 
+        * if atleast_pkgconfig_version is given, check that pkg-config has the version n and return
+diff --git a/waflib/Tools/c_preproc.py b/waflib/Tools/c_preproc.py
+index 7e04b4a7..68e5f5ae 100644
+--- a/waflib/Tools/c_preproc.py
++++ b/waflib/Tools/c_preproc.py
+@@ -75,13 +75,13 @@ re_lines = re.compile(
+        re.IGNORECASE | re.MULTILINE)
+ """Match #include lines"""
+ 
+-re_mac = re.compile("^[a-zA-Z_]\w*")
++re_mac = re.compile(r"^[a-zA-Z_]\w*")
+ """Match macro definitions"""
+ 
+ re_fun = re.compile('^[a-zA-Z_][a-zA-Z0-9_]*[(]')
+ """Match macro functions"""
+ 
+-re_pragma_once = re.compile('^\s*once\s*', re.IGNORECASE)
++re_pragma_once = re.compile(r'^\s*once\s*', re.IGNORECASE)
+ """Match #pragma once statements"""
+ 
+ re_nl = re.compile('\\\\\r*\n', re.MULTILINE)
+@@ -660,7 +660,7 @@ def extract_macro(txt):
+                        # empty define, assign an empty token
+                        return (v, [[], [('T','')]])
+ 
+-re_include = re.compile('^\s*(<(?:.*)>|"(?:.*)")')
++re_include = re.compile(r'^\s*(<(?:.*)>|"(?:.*)")')
+ def extract_include(txt, defs):
+        """
+        Process a line in the form::
+diff --git a/waflib/Tools/msvc.py b/waflib/Tools/msvc.py
+index 17b347d4..ff58449d 100644
+--- a/waflib/Tools/msvc.py
++++ b/waflib/Tools/msvc.py
+@@ -281,7 +281,7 @@ def gather_wince_supported_platforms():
+ 
+ def gather_msvc_detected_versions():
+        #Detected MSVC versions!
+-       version_pattern = re.compile('^(\d\d?\.\d\d?)(Exp)?$')
++       version_pattern = re.compile(r'^(\d\d?\.\d\d?)(Exp)?$')
+        detected_versions = []
+        for vcver,vcvar in (('VCExpress','Exp'), ('VisualStudio','')):
+                prefix = 'SOFTWARE\\Wow6432node\\Microsoft\\' + vcver
+@@ -367,7 +367,7 @@ def gather_wsdk_versions(conf, versions):
+        :param versions: list to modify
+        :type versions: list
+        """
+-       version_pattern = re.compile('^v..?.?\...?.?')
++       version_pattern = re.compile(r'^v..?.?\...?.?')
+        try:
+                all_versions = Utils.winreg.OpenKey(Utils.winreg.HKEY_LOCAL_MACHINE, 'SOFTWARE\\Wow6432node\\Microsoft\\Microsoft SDKs\\Windows')
+        except OSError:
+@@ -525,7 +525,7 @@ def gather_icl_versions(conf, versions):
+        :param versions: list to modify
+        :type versions: list
+        """
+-       version_pattern = re.compile('^...?.?\....?.?')
++       version_pattern = re.compile(r'^...?.?\....?.?')
+        try:
+                all_versions = Utils.winreg.OpenKey(Utils.winreg.HKEY_LOCAL_MACHINE, 'SOFTWARE\\Wow6432node\\Intel\\Compilers\\C++')
+        except OSError:
+@@ -579,7 +579,7 @@ def gather_intel_composer_versions(conf, versions):
+        :param versions: list to modify
+        :type versions: list
+        """
+-       version_pattern = re.compile('^...?.?\...?.?.?')
++       version_pattern = re.compile(r'^...?.?\...?.?.?')
+        try:
+                all_versions = Utils.winreg.OpenKey(Utils.winreg.HKEY_LOCAL_MACHINE, 'SOFTWARE\\Wow6432node\\Intel\\Suites')
+        except OSError:
+@@ -683,7 +683,7 @@ def find_lt_names_msvc(self, libname, is_static=False):
+                                if not is_static and ltdict.get('library_names', ''):
+                                        dllnames=ltdict['library_names'].split()
+                                        dll=dllnames[0].lower()
+-                                       dll=re.sub('\.dll$', '', dll)
++                                       dll=re.sub(r'\.dll$', '', dll)
+                                        return (lt_libdir, dll, False)
+                                elif ltdict.get('old_library', ''):
+                                        olib=ltdict['old_library']
+@@ -700,7 +700,7 @@ def find_lt_names_msvc(self, libname, is_static=False):
+ @conf
+ def libname_msvc(self, libname, is_static=False):
+        lib = libname.lower()
+-       lib = re.sub('\.lib$','',lib)
++       lib = re.sub(r'\.lib$','',lib)
+ 
+        if lib in g_msvc_systemlibs:
+                return lib
+@@ -747,11 +747,11 @@ def libname_msvc(self, libname, is_static=False):
+                for libn in libnames:
+                        if os.path.exists(os.path.join(path, libn)):
+                                Logs.debug('msvc: lib found: %s', os.path.join(path,libn))
+-                               return re.sub('\.lib$', '',libn)
++                               return re.sub(r'\.lib$', '',libn)
+ 
+        #if no lib can be found, just return the libname as msvc expects it
+        self.fatal('The library %r could not be found' % libname)
+-       return re.sub('\.lib$', '', libname)
++       return re.sub(r'\.lib$', '', libname)
+ 
+ @conf
+ def check_lib_msvc(self, libname, is_static=False, uselib_store=None):
+diff --git a/waflib/Utils.py b/waflib/Utils.py
+index a0cc2a09..da1b73e7 100644
+--- a/waflib/Utils.py
++++ b/waflib/Utils.py
+@@ -730,7 +730,7 @@ def unversioned_sys_platform():
+        if s == 'cli' and os.name == 'nt':
+                # ironpython is only on windows as far as we know
+                return 'win32'
+-       return re.split('\d+$', s)[0]
++       return re.split(r'\d+$', s)[0]
+ 
+ def nada(*k, **kw):
+        """
+diff --git a/waflib/ansiterm.py b/waflib/ansiterm.py
+index 0d20c637..027f0ad6 100644
+--- a/waflib/ansiterm.py
++++ b/waflib/ansiterm.py
+@@ -264,7 +264,7 @@ else:
+                        'u': pop_cursor,
+                }
+                # Match either the escape sequence or text not containing escape sequence
+-               ansi_tokens = re.compile('(?:\x1b\[([0-9?;]*)([a-zA-Z])|([^\x1b]+))')
++               ansi_tokens = re.compile(r'(?:\x1b\[([0-9?;]*)([a-zA-Z])|([^\x1b]+))')
+                def write(self, text):
+                        try:
+                                wlock.acquire()
diff --git a/meta-oe/recipes-multimedia/jack/jack_1.9.22.bb b/meta-oe/recipes-multimedia/jack/jack_1.9.22.bb
index b5c52a6edc..bb844e4ff1 100644
--- a/meta-oe/recipes-multimedia/jack/jack_1.9.22.bb
+++ b/meta-oe/recipes-multimedia/jack/jack_1.9.22.bb
@@ -16,7 +16,10 @@ LIC_FILES_CHKSUM = " \
 
 DEPENDS = "libsamplerate0 libsndfile1"
 
-SRC_URI = "git://github.com/jackaudio/jack2.git;branch=master;protocol=https"
+SRC_URI = "git://github.com/jackaudio/jack2.git;branch=master;protocol=https \
+    file://0001-Conceal-imp-warnings-in-Python3.patch \
+    file://0002-Fix-all-DeprecationWarning-invalid-escape-sequence.patch \
+"
 SRCREV = "4f58969432339a250ce87fe855fb962c67d00ddb"
 
 UPSTREAM_CHECK_GITTAGREGEX = "v(?P<pver>\d+(\.\d+)+)"