diff -Napur gstreamer-1.2.3.orig/common/m4/introspection.m4 gstreamer-1.2.3/common/m4/introspection.m4
--- gstreamer-1.2.3.orig/common/m4/introspection.m4	2013-09-24 15:07:33.000000000 +0200
+++ gstreamer-1.2.3/common/m4/introspection.m4	2016-09-01 10:44:56.426710243 +0200
@@ -54,14 +54,14 @@ m4_define([_GOBJECT_INTROSPECTION_CHECK_
     INTROSPECTION_GIRDIR=
     INTROSPECTION_TYPELIBDIR=
     if test "x$found_introspection" = "xyes"; then
-       INTROSPECTION_SCANNER=`$PKG_CONFIG --variable=g_ir_scanner gobject-introspection-1.0`
-       INTROSPECTION_COMPILER=`$PKG_CONFIG --variable=g_ir_compiler gobject-introspection-1.0`
-       INTROSPECTION_GENERATE=`$PKG_CONFIG --variable=g_ir_generate gobject-introspection-1.0`
+       INTROSPECTION_SCANNER=$PKG_CONFIG_SYSROOT_DIR`$PKG_CONFIG --variable=g_ir_scanner gobject-introspection-1.0`
+       INTROSPECTION_COMPILER=$PKG_CONFIG_SYSROOT_DIR`$PKG_CONFIG --variable=g_ir_compiler gobject-introspection-1.0`
+       INTROSPECTION_GENERATE=$PKG_CONFIG_SYSROOT_DIR`$PKG_CONFIG --variable=g_ir_generate gobject-introspection-1.0`
        INTROSPECTION_GIRDIR=`$PKG_CONFIG --variable=girdir gobject-introspection-1.0`
        INTROSPECTION_TYPELIBDIR="$($PKG_CONFIG --variable=typelibdir gobject-introspection-1.0)"
        INTROSPECTION_CFLAGS=`$PKG_CONFIG --cflags gobject-introspection-1.0`
        INTROSPECTION_LIBS=`$PKG_CONFIG --libs gobject-introspection-1.0`
-       INTROSPECTION_MAKEFILE=`$PKG_CONFIG --variable=datadir gobject-introspection-1.0`/gobject-introspection-1.0/Makefile.introspection
+       INTROSPECTION_MAKEFILE=$PKG_CONFIG_SYSROOT_DIR`$PKG_CONFIG --variable=datadir gobject-introspection-1.0`/gobject-introspection-1.0/Makefile.introspection
     fi
     AC_SUBST(INTROSPECTION_SCANNER)
     AC_SUBST(INTROSPECTION_COMPILER)