[glib/1940-bsd-atomics-failure] gatomic: Temporarily disable C11-style atomics on FreeBSD

[Philip Withnall <pwithnall src gnome org>]

commit fd3ed5e31bc0d3d6a0a34d6482bb2ae10f186c06
Author: Philip Withnall <withnall endlessm com>
Date:   Fri Nov 15 10:28:21 2019 +0000

    gatomic: Temporarily disable C11-style atomics on FreeBSD
    
    They’re causing the CI to fail. While someone familiar with FreeBSD
    investigates the failure, it’s easiest to disable all C11-style atomics
    than add more preprocessor checks to only disable the atomics added in
    !1123.
    
    If nobody can fix the new C11-style atomics before the 2.64.0 release,
    this commit should be reverted and a more comprehensive set of preprocessor
    checks put in place to essentially revert !1123 for BSD only.
    
    Signed-off-by: Philip Withnall <withnall endlessm com>
    
    Helps: #1940

 glib/gatomic.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
---
diff --git a/glib/gatomic.h b/glib/gatomic.h
index 092589454..646a30df4 100644
--- a/glib/gatomic.h
+++ b/glib/gatomic.h
@@ -85,7 +85,9 @@ G_END_DECLS
 #if defined(G_ATOMIC_LOCK_FREE) && defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4)
 
 /* We prefer the new C11-style atomic extension of GCC if available */
-#if defined(__ATOMIC_SEQ_CST)
+/* FIXME: Temporarily disabled on FreeBSD due to CI failures:
+ * https://gitlab.gnome.org/GNOME/glib/issues/1940 */
+#if defined(__ATOMIC_SEQ_CST) && !defined(__FreeBSD__)
 
 #define g_atomic_int_get(atomic) \
   (G_GNUC_EXTENSION ({                                                       \