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authorStefan Weil <weil@mail.berlios.de>2010-09-21 22:27:49 +0200
committerBlue Swirl <blauwirbel@gmail.com>2010-09-22 20:15:11 +0000
commit9c9e7d51bf01afdd4902bc9832c4a6ec19f68d0b (patch)
treec711a024a47dfda080c4bd694fc47f29e4dad867 /qemu-common.h
parent80bb8cba0af8a77341ef91ff9d5a2d84cad1880f (diff)
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Move macros GCC_ATTR and GCC_FMT_ATTR to common header file
By moving the definition of GCC_ATTR and GCC_FMT_ATTR from audio_int.h to qemu-common.h these macros are now generally available for further patches which add the gcc format attribute. Newer gcc versions support format gnu_printf which is better suited for use in QEMU than format printf (QEMU always uses standard format strings (even with mingw32)). V2: Use correct operator '==' (instead of '=') Cc: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Diffstat (limited to 'qemu-common.h')
-rw-r--r--qemu-common.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/qemu-common.h b/qemu-common.h
index 5544ffd..88c5207 100644
--- a/qemu-common.h
+++ b/qemu-common.h
@@ -70,6 +70,22 @@ struct iovec {
#include <sys/uio.h>
#endif
+#if defined __GNUC__
+# if (__GNUC__ < 4) || \
+ defined(__GNUC_MINOR__) && (__GNUC__ == 4) && (__GNUC_MINOR__ < 4)
+ /* gcc versions before 4.4.x don't support gnu_printf, so use printf. */
+# define GCC_ATTR __attribute__((__unused__, format(printf, 1, 2)))
+# define GCC_FMT_ATTR(n, m) __attribute__((format(printf, n, m)))
+# else
+ /* Use gnu_printf when supported (qemu uses standard format strings). */
+# define GCC_ATTR __attribute__((__unused__, format(gnu_printf, 1, 2)))
+# define GCC_FMT_ATTR(n, m) __attribute__((format(gnu_printf, n, m)))
+# endif
+#else
+#define GCC_ATTR /**/
+#define GCC_FMT_ATTR(n, m)
+#endif
+
#ifdef _WIN32
#define fsync _commit
#define lseek _lseeki64