ppl: improved toolchain stage assuring that the right headers will be used

develop/ppl/ppl.conf

@@ -2,7 +2,7 @@
 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
 #
 # Filename: package/.../ppl/ppl.conf
-# Copyright (C) 2009 The OpenSDE Project
+# Copyright (C) 2009 - 2010 The OpenSDE Project
 #
 # More information can be found in the files COPYING and README.
 #
@@ -12,10 +12,11 @@
 # GNU General Public License can be found in the file COPYING.
 # --- SDE-COPYRIGHT-NOTE-END ---
 
-# use the host g++ and the native libs we have built in tools.cross
+# use the host g++ and the native libs and headers we have in tools.cross
 if atstage toolchain; then
 	export CXX=g++
 	export LDFLAGS="-Wl,-rpath,${root}${libdir}"
+	var_append SYSGCC_WRAPPER_INSERT " " "-I${root}${includedir}"
 	var_append extraconfopt ' ' '--with-libgmp-prefix=$root'
 	var_append extraconfopt ' ' '--with-libgmpxx-prefix=$root'
 fi