[rtmpdump] [PATCH 2/3] Tell gcc about format strings

[Martin Storsjo]

This allows gcc to warn about incorrect format strings
---
 librtmp/log.h |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/librtmp/log.h b/librtmp/log.h
index 97c9aac..2adb111 100644
--- a/librtmp/log.h
+++ b/librtmp/log.h
@@ -48,9 +48,15 @@ extern RTMP_LogLevel RTMP_debuglevel;
 typedef void (RTMP_LogCallback)(int level, const char *fmt, va_list);
 void RTMP_LogSetCallback(RTMP_LogCallback *cb);
 void RTMP_LogSetOutput(FILE *file);
+#ifdef __GNUC__
+void RTMP_LogPrintf(const char *format, ...) __attribute__ ((__format__ (__printf__, 1, 2)));
+void RTMP_LogStatus(const char *format, ...) __attribute__ ((__format__ (__printf__, 1, 2)));
+void RTMP_Log(int level, const char *format, ...) __attribute__ ((__format__ (__printf__, 2, 3)));
+#else
 void RTMP_LogPrintf(const char *format, ...);
 void RTMP_LogStatus(const char *format, ...);
 void RTMP_Log(int level, const char *format, ...);
+#endif
 void RTMP_LogHex(int level, const uint8_t *data, unsigned long len);
 void RTMP_LogHexString(int level, const uint8_t *data, unsigned long len);
 void RTMP_LogSetLevel(RTMP_LogLevel lvl);
-- 
1.7.3.1