[glib] Update config.h.win32.in

[Chun-wei Fan <fanchunwei src gnome org>]

commit 872d3634a78b417612d90c3472d5cd7078ef2440
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Fri Mar 1 16:11:24 2013 +0800

    Update config.h.win32.in
    
    Add entry for __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4, to better reflect the
    entries of items in config.h.in.  We are not currently defining this here
    as the pre-configured config.h.win32.in is primarily meant for Visual
    Studio builds of GLib-the MinGW/GCC/Clang builds of GLib will normally
    use the autotools builds, which should give the correct config.h entries
    upon running ./configure.

 config.h.win32.in |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/config.h.win32.in b/config.h.win32.in
index 7a577ff..349b9cf 100644
--- a/config.h.win32.in
+++ b/config.h.win32.in
@@ -896,6 +896,9 @@
 /* Needed to get declarations for msg_control and msg_controllen on Solaris */
 /* #undef __EXTENSIONS__ */
 
+/* compiler supports atomic operations */
+/* #undef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 */
+
 /* Define to empty if `const' does not conform to ANSI C. */
 /* #undef const */