1 files changed, 7 insertions, 2 deletions
diff --git a/sway/log.h b/sway/log.h
index e5075a39..3e8c55f0 100644
--- a/sway/log.h
+++ b/sway/log.h
@@ -1,6 +1,10 @@
 #ifndef _SWAY_LOG_H
 #define _SWAY_LOG_H
 
+#ifndef __GNUC__
+#  define  __attribute__(x)
+#endif
+
 typedef enum {
 	L_SILENT = 0,
 	L_ERROR = 1,
@@ -8,9 +12,10 @@ typedef enum {
 	L_DEBUG = 3,
 } log_importance_t;
 
+
 void init_log(int verbosity);
 void sway_log_colors(int mode);
-void sway_log(int verbosity, char* format, ...);
-void sway_abort(char* format, ...);
+void sway_log(int verbosity, char* format, ...)__attribute__((format (printf,2,3)));
+void sway_abort(char* format, ...) __attribute__((format (printf,1,2)));
 
 #endif