X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=compiler%2Fcompiler-gcc4.h;h=e8701cf072cbaf05fee5017c8987550a6164ae06;hb=64666f8fe2242cbe4d804df2305924a9e43e8699;hp=bb9cc7c555130676e85d2f9b1550fdebc53e9f3f;hpb=317b95d07d4921d2594a1be6e014c9c2d062fe75;p=fio.git

diff --git a/compiler/compiler-gcc4.h b/compiler/compiler-gcc4.h
index bb9cc7c5..e8701cf0 100644
--- a/compiler/compiler-gcc4.h
+++ b/compiler/compiler-gcc4.h
@@ -1,6 +1,17 @@
 #ifndef FIO_COMPILER_GCC4_H
 #define FIO_COMPILER_GCC4_H
 
+#ifndef __must_check
 #define __must_check		__attribute__((warn_unused_result))
+#endif
+
+#define GCC_VERSION (__GNUC__ * 10000		\
+			+ __GNUC_MINOR__ * 100	\
+			+ __GNUC_PATCHLEVEL__)
+
+#if GCC_VERSION >= 40300
+#define __compiletime_warning(message)	__attribute__((warning(message)))
+#define __compiletime_error(message)	__attribute__((error(message)))
+#endif
 
 #endif