Collected cached siteconfig in the runtime

index a61b5e5..02294c4 100644
@@ -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):

index f7b52be..6fc67f8 100644
@@ -101,17 +101,28 @@ toolchain_create_sdk_env_script_for_installer () {
 	echo 'export POKY_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)
+}

index 0f3591b..69780e5 100644
@@ -47,7 +47,7 @@ fakeroot do_populate_sdk() {
 	ln -s /etc/ld.so.cache ${SDK_OUTPUT}/${SDKPATHNATIVE}/etc/ld.so.cache
 
 	# Setup site file for external use
-	toolchain_create_sdk_siteconfig ${SDK_OUTPUT}/${SDKPATH}/site-config-${MULTIMACH_TARGET_SYS} ${CONFIG_SITE}
+	toolchain_create_sdk_siteconfig ${SDK_OUTPUT}/${SDKPATH}/site-config-${MULTIMACH_TARGET_SYS}
 
 	toolchain_create_sdk_env_script
 

index 114727c..39ba96c 100644
@@ -2,13 +2,12 @@ DESCRIPTION = "Package of environment files for SDK"
 LIC_FILES_CHKSUM = "file://${COREBASE}/LICENSE;md5=3f40d7994397109285ec7b81fdeb3b58 \
                     file://${COREBASE}/meta/COPYING.MIT;md5=3da9cfbcb788c80a0384361b4de20420"
 LICENSE = "MIT"
-PR = "r6"
+PR = "r7"
 
 EXCLUDE_FROM_WORLD = "1"
 
 inherit toolchain-scripts
-# get target config site before inheritting cross-canadian
-TARGET_CONFIG_SITE := "${@siteinfo_get_files(d)}"
+TOOLCHAIN_NEED_CONFIGSITE_CACHE += "zlib"
 REAL_MULTIMACH_TARGET_SYS = "${TUNE_PKGARCH}${TARGET_VENDOR}-${TARGET_OS}"
 
 SDK_DIR = "${WORKDIR}/sdk"

@@ -23,7 +22,7 @@ do_generate_content() {
     rm -rf ${SDK_OUTPUT}
     mkdir -p ${SDK_OUTPUT}/${SDKPATH}
 
-    toolchain_create_sdk_siteconfig ${SDK_OUTPUT}/${SDKPATH}/site-config-${REAL_MULTIMACH_TARGET_SYS} ${TARGET_CONFIG_SITE}
+    toolchain_create_sdk_siteconfig ${SDK_OUTPUT}/${SDKPATH}/site-config-${REAL_MULTIMACH_TARGET_SYS}
 
     toolchain_create_sdk_env_script_for_installer ${REAL_MULTIMACH_TARGET_SYS}
 

index 4f5501e..512810b 100644
@@ -3,3 +3,5 @@ TOOLCHAIN_TARGET_TASK = "${TOOLCHAIN_TARGET_GMAETASK}"
 TOOLCHAIN_OUTPUTNAME = "${SDK_NAME}-toolchain-gmae-${DISTRO_VERSION}"
 PROVIDES = "meta-toolchain-sdk"
 require meta-toolchain.bb
+
+TOOLCHAIN_NEED_CONFIGSITE_CACHE += "zlib"

index 164d717..1058c68 100644
@@ -1,12 +1,10 @@
 DESCRIPTION = "Meta package for building a installable toolchain"
 LICENSE = "MIT"
 
-PR = "r5"
+PR = "r6"
 
 LIC_FILES_CHKSUM = "file://${COREBASE}/LICENSE;md5=3f40d7994397109285ec7b81fdeb3b58 \
                     file://${COREBASE}/meta/COPYING.MIT;md5=3da9cfbcb788c80a0384361b4de20420"
 
 IMAGETEST ?= "dummy"
 inherit populate_sdk imagetest-${IMAGETEST}
-
-CONFIG_SITE := "${@siteinfo_get_files(d)}"