Mark braced-groups within expressions with __extension__

[urcu.git] / urcu / static / urcu-pointer.h

diff --git a/urcu/static/urcu-pointer.h b/urcu/static/urcu-pointer.h
index a5b3e4b190852811b039c26be66f65c33bef64e6..06371e3dd1c066387db5316087346ccf9bbdf80b 100644 (file)
--- a/urcu/static/urcu-pointer.h
+++ b/urcu/static/urcu-pointer.h
@@ -64,7 +64,9 @@ extern "C" {
  * meets the 10-line criterion in LGPL, allowing this function to be
  * expanded directly in non-LGPL code.
  */
-#define _rcu_dereference(p)     ({                                     \
+#define _rcu_dereference(p)                                            \
+                               __extension__                           \
+                               ({                                      \
                                __typeof__(p) _________p1 = CMM_LOAD_SHARED(p); \
                                cmm_smp_read_barrier_depends();         \
                                (_________p1);                          \
@@ -82,6 +84,7 @@ extern "C" {
  * expanded directly in non-LGPL code.
  */
 #define _rcu_cmpxchg_pointer(p, old, _new)                             \
+       __extension__                                                   \
        ({                                                              \
                __typeof__(*p) _________pold = (old);                   \
                __typeof__(*p) _________pnew = (_new);                  \
@@ -101,6 +104,7 @@ extern "C" {
  * expanded directly in non-LGPL code.
  */
 #define _rcu_xchg_pointer(p, v)                                \
+       __extension__                                   \
        ({                                              \
                __typeof__(*p) _________pv = (v);       \
                if (!__builtin_constant_p(v) ||         \