pango: have postinstalls run at do_rootfs time

Since pango-native is built anyway and all the modules are in the native
sysroot, create the cache file by scanning those files instead of the
target files. The latter will fail because the shared objects wouldn't
be from the same ELF class.

[YOCTO #3600]

(From OE-Core rev: 75334cbee1f064b38f167269917e333989802e7d)

Signed-off-by: Laurentiu Palcu <laurentiu.palcu@intel.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-graphics/pango/pango.inc

@@ -10,7 +10,7 @@ SECTION = "libs"
 LICENSE = "LGPLv2.0+"
 
 X11DEPENDS = "virtual/libx11 libxft"
-DEPENDS = "glib-2.0 fontconfig freetype zlib virtual/libiconv cairo elfutils"
+DEPENDS = "glib-2.0 fontconfig freetype zlib virtual/libiconv cairo elfutils pango-native"
 
 PACKAGECONFIG ??= "${@base_contains('DISTRO_FEATURES', 'x11', 'x11', '', d)}"
 PACKAGECONFIG[x11] = "--with-x,--without-x,${X11DEPENDS}"
@@ -44,13 +44,31 @@ LEAD_SONAME = "libpango-1.0*"
 LIBV = "1.6.0"
 
 postinst_prologue() {
-if [ "x$D" != "x" ]; then
-  exit 1
-fi
-
 if ! [ -e $D${sysconfdir}/pango ] ; then
 	mkdir -p $D${sysconfdir}/pango
 fi
+
+if [ "x$D" != "x" ]; then
+pango-querymodules $(ls -d -1 $D${libdir}/pango/${LIBV}/modules/*.so|\
+    sed -e "s:$D:$NATIVE_ROOT:g") >\
+    $D${sysconfdir}/pango/${MLPREFIX}pango.modules \
+    2>$D${sysconfdir}/pango/${MLPREFIX}pango.err
+
+# pango-querymodules always returns 0, so we need to check if pango.err has
+# anything in it
+if [ -s $D${sysconfdir}/pango/${MLPREFIX}pango.err ]; then
+    rm $D${sysconfdir}/pango/${MLPREFIX}pango.err
+    exit 1
+fi
+
+sed -i -e "s:$NATIVE_ROOT::g" $D${sysconfdir}/pango/${MLPREFIX}pango.modules
+
+# remove the empty pango.err
+rm $D${sysconfdir}/pango/${MLPREFIX}pango.err
+
+exit 0
+fi
+
 }
 
 do_install_append () {