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-rw-r--r--src/includes/helpers.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/includes/helpers.h b/src/includes/helpers.h
index 6e0ad19f..037a7859 100644
--- a/src/includes/helpers.h
+++ b/src/includes/helpers.h
@@ -28,9 +28,11 @@
#if __GNUC__ > 2 || defined(__INTEL_COMPILER)
# define _dead __attribute__((__noreturn__))
# define _unused __attribute__((__unused__))
+# define _xasprintf(a, b) __attribute__((__format__(__printf__, a, b)))
#else
# define _dead
# define _unused
+# define _xasprintf(a, b)
#endif
#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
@@ -132,7 +134,7 @@ _unused static bool existss(const char *pathname)
* functions to handle memory allocation.
* this function was originally written by Mike Frysinger.
*/
-_unused static int xasprintf(char **strp, const char *fmt, ...)
+_unused _xasprintf(2,3) static int xasprintf(char **strp, const char *fmt, ...)
{
va_list ap;
int len;