Place ifdef around container_of definition

This is also defined in verbs.h.

Signed-off-by: Sean Hefty <sean.hefty@intel.com>

diff --git a/src/cm.c b/src/cm.c
index ceeef558281664bbe4ecc79612942ca55dc9a23e..996268141a048d48b793154c6fa7ab1a008bd267 100755 (executable)
--- a/src/cm.c
+++ b/src/cm.c
@@ -121,8 +121,10 @@ struct cm_id_private {
        pthread_mutex_t mut;
 };
 
+#ifndef container_of
 #define container_of(ptr, type, field) \
        ((type *) ((void *)ptr - offsetof(type, field)))
+#endif
 
 static int check_abi_version(void)
 {