[glib] gbitlock: fix this to not unconditionally use futex emulation

[Dan Winship <danw src gnome org>]

commit 13958ee4292947e0a074ebf4a0e697462ba58e79
Author: Dan Winship <danw gnome org>
Date:   Thu May 2 10:14:57 2013 -0400

    gbitlock: fix this to not unconditionally use futex emulation
    
    Ryan accidentally committed some debugging code a long time ago,
    causing this file to always use futex emulation even when real futex
    support was available. I noticed this a while later and pointed it out
    to him, and assumed he was going to fix it, but I guess he assumed I
    was going to fix it, and then neither of us did...
    
    https://bugzilla.gnome.org/show_bug.cgi?id=699500

 glib/gbitlock.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/glib/gbitlock.c b/glib/gbitlock.c
index 89e0071..e183d39 100644
--- a/glib/gbitlock.c
+++ b/glib/gbitlock.c
@@ -32,8 +32,8 @@
 
 #include "gthreadprivate.h"
 
-#undef HAVE_FUTEX
 #ifdef G_BIT_LOCK_FORCE_FUTEX_EMULATION
+#undef HAVE_FUTEX
 #endif
 
 #ifndef HAVE_FUTEX