When using build compiler, cross compiled flags should not pass
through.

--- builtins/Makefile.in.orig	2007-06-21 14:08:48.000000000 +0200
+++ builtins/Makefile.in	2007-06-21 14:09:46.000000000 +0200
@@ -63,7 +63,7 @@
 
 LIBS = @LIBS@
 LDFLAGS = @LDFLAGS@ $(LOCAL_LDFLAGS) $(CFLAGS)
-LDFLAGS_FOR_BUILD = $(LDFLAGS)
+LDFLAGS_FOR_BUILD = $(LOCAL_LDFLAGS)
 LOCAL_LDFLAGS = @LOCAL_LDFLAGS@
 #LIBS_FOR_BUILD = @LIBS_FOR_BUILD@
 LIBS_FOR_BUILD = $(LIBS)