X-Git-Url: http://git.archive.openwrt.org/?a=blobdiff_plain;ds=sidebyside;f=utils.h;h=a86894aa57b1ec25935771dbe828c5a11837a264;hb=f1735cd94e55a3547254bd7d5f3c7c8cd79dac59;hp=065a28b343f9e29e7cb4fe53d49313ff539fb972;hpb=9c8ab5d64cb1bfc6f8a235af5913ed3537c38e2a;p=project%2Flibubox.git

diff --git a/utils.h b/utils.h
index 065a28b..a86894a 100644
--- a/utils.h
+++ b/utils.h
@@ -30,7 +30,7 @@
  * the last argument needs to be a NULL pointer
  */
 
-#define calloc_a(len, ...) __calloc_a(len, ##__VA_ARGS__)
+#define calloc_a(len, ...) __calloc_a(len, ##__VA_ARGS__, NULL)
 
 void *__calloc_a(size_t len, ...);
 
@@ -38,4 +38,18 @@ void *__calloc_a(size_t len, ...);
 #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
 #endif
 
+#define __BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
+
+#ifdef __OPTIMIZE__
+extern int __BUILD_BUG_ON_CONDITION_FAILED;
+#define BUILD_BUG_ON(condition)					\
+	do {							\
+		__BUILD_BUG_ON(condition);			\
+		if (condition)					\
+			__BUILD_BUG_ON_CONDITION_FAILED = 1;	\
+	} while(0)
+#else
+#define BUILD_BUG_ON __BUILD_BUG_ON
+#endif
+
 #endif