2 files changed, 24 insertions, 4 deletions

diff --git a/meta/classes/siteinfo.bbclass b/meta/classes/siteinfo.bbclass
index a61b5e50cd..02294c4d2e 100644
--- a/meta/classes/siteinfo.bbclass
+++ b/meta/classes/siteinfo.bbclass
@@ -118,7 +118,7 @@ python () {
         bb.fatal("Please add your architecture to siteinfo.bbclass")
 }
 
-def siteinfo_get_files(d):
+def siteinfo_get_files(d, no_cache = False):
     sitedata = siteinfo_data(d)
     sitefiles = ""
     for path in d.getVar("BBPATH", True).split(":"):
@@ -127,6 +127,8 @@ def siteinfo_get_files(d):
             if os.path.exists(filename):
                 sitefiles += filename + " "
 
+    if no_cache: return sitefiles
+
     # Now check for siteconfig cache files
     path_siteconfig = bb.data.getVar('SITECONFIG_SYSROOTCACHE', d, 1)
     if os.path.isdir(path_siteconfig):
diff --git a/meta/classes/toolchain-scripts.bbclass b/meta/classes/toolchain-scripts.bbclass
index b7e4e04eaf..4a28e5fe38 100644
--- a/meta/classes/toolchain-scripts.bbclass
+++ b/meta/classes/toolchain-scripts.bbclass
@@ -101,17 +101,28 @@ toolchain_create_sdk_env_script_for_installer () {
         echo 'export OECORE_SDK_VERSION="${SDK_VERSION}"' >> $script
 }
 
+#we get the cached site config in the runtime
+TOOLCHAIN_CONFIGSITE_NOCACHE := "${@siteinfo_get_files(d, True)}"
+TOOLCHAIN_CONFIGSITE_SYSROOTCACHE := "${STAGING_DATADIR}/${TARGET_SYS}_config_site.d"
+TOOLCHAIN_NEED_CONFIGSITE_CACHE = "eglibc ncurses"
+
 #This function create a site config file
 toolchain_create_sdk_siteconfig () {
         local siteconfig=$1
-        shift
-        local files=$@
 
         rm -f $siteconfig
         touch $siteconfig
-        for sitefile in ${files} ; do
+
+        for sitefile in ${TOOLCHAIN_CONFIGSITE_NOCACHE} ; do
                 cat $sitefile >> $siteconfig
         done
+
+        #get cached site config
+        for sitefile in ${TOOLCHAIN_NEED_CONFIGSITE_CACHE}; do
+                if [ -r ${TOOLCHAIN_CONFIGSITE_SYSROOTCACHE}/${sitefile}_config ]; then
+                        cat ${TOOLCHAIN_CONFIGSITE_SYSROOTCACHE}/${sitefile}_config >> $siteconfig
+                fi
+        done
 }
 
 #This function create a version information file
@@ -124,3 +135,10 @@ toolchain_create_sdk_version () {
         echo 'Metadata Revision: ${METADATA_REVISION}' >> $versionfile
         echo 'Timestamp: ${DATETIME}' >> $versionfile
 }
+
+python __anonymous () {
+    deps = bb.data.getVarFlag('do_configure', 'depends', d) or ""
+    for dep in (bb.data.getVar('TOOLCHAIN_NEED_CONFIGSITE_CACHE', d, True) or "").split():
+        deps += " %s:do_populate_sysroot" % dep
+    bb.data.setVarFlag('do_configure', 'depends', deps, d)
+}