--- a/common/autoconf/spec.gmk.in	Wed Sep 30 11:38:01 2015 +0200
+++ b/common/autoconf/spec.gmk.in	Mon Oct 05 13:44:40 2015 +0200
@@ -367,6 +367,8 @@
 # build platform.
 BUILD_CC:=@FIXPATH@ @BUILD_CC@
 BUILD_LD:=@FIXPATH@ @BUILD_LD@
+BUILD_SYSROOT_CFLAGS:=@BUILD_SYSROOT_CFLAGS@
+BUILD_SYSROOT_LDFLAGS:=@BUILD_SYSROOT_LDFLAGS@
 
 AS:=@FIXPATH@ @AS@