From a9a9e374e2567caad8601d1781a3b0af8a3dde13 Mon Sep 17 00:00:00 2001 From: Austin Clements Date: Thu, 19 Jan 2012 17:29:19 -0500 Subject: Silence buildbot warnings about unused results This ignores the results of the two writes in sigint handlers even harder than before. While my libc lacks the declarations that trigger these warnings, this can be tested by adding the following to notmuch.h: __attribute__((warn_unused_result)) ssize_t write(int fd, const void *buf, size_t count); --- compat/compat.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'compat') diff --git a/compat/compat.h b/compat/compat.h index 7767fe84..b2e27368 100644 --- a/compat/compat.h +++ b/compat/compat.h @@ -46,6 +46,14 @@ getdelim (char **lineptr, size_t *n, int delimiter, FILE *fp); char* strcasestr(const char *haystack, const char *needle); #endif /* !HAVE_STRCASESTR */ +/* Silence gcc warnings about unused results. These warnings exist + * for a reason; any use of this needs to be justified. */ +#ifdef __GNUC__ +#define IGNORE_RESULT(x) ({ __typeof__(x) __z = (x); (void)(__z = __z); }) +#else /* !__GNUC__ */ +#define IGNORE_RESULT(x) x +#endif /* __GNUC__ */ + #ifdef __cplusplus } #endif -- cgit v1.2.3