--- spec-files/base-specs/glib2.spec.orig	2009-09-13 18:24:40.940583483 +0900
+++ spec-files/base-specs/glib2.spec	2009-09-13 18:25:58.311100688 +0900
@@ -103,7 +103,7 @@ gtkdocize
 autoheader
 automake -a -c -f
 autoconf
-export CFLAGS="%optflags"
+export CFLAGS="%optflags -D__STDC_ISO_10646__"
 export LDFLAGS="%_ldflags"
 ./configure --prefix=%{_prefix} \
             --mandir=%{_mandir} \