From c557dee8dac08e4fefd11722b6fb98016827a087 Mon Sep 17 00:00:00 2001 From: Johannes Schindelin Date: Tue, 31 Mar 2015 17:39:54 +0100 Subject: [PATCH] mingw: uglify pthread_mutex_init definition to shut up warning When the result of a (a, 0) expression is not used, GCC now finds it necessary to complain with a warning: right-hand operand of comma expression has no effect Let's just pretend to use the 0 value and have a peaceful and quiet life again. Signed-off-by: Johannes Schindelin --- compat/win32/pthread.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/compat/win32/pthread.h b/compat/win32/pthread.h index 1ade961769..62151d7550 100644 --- a/compat/win32/pthread.h +++ b/compat/win32/pthread.h @@ -18,7 +18,10 @@ */ #define pthread_mutex_t CRITICAL_SECTION -#define pthread_mutex_init(a,b) (InitializeCriticalSection((a)), 0) +static inline int return_0(int i) { + return 0; +} +#define pthread_mutex_init(a,b) return_0((InitializeCriticalSection((a)), 0)) #define pthread_mutex_destroy(a) DeleteCriticalSection((a)) #define pthread_mutex_lock EnterCriticalSection #define pthread_mutex_unlock LeaveCriticalSection