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-rw-r--r--lib/birdlib.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/birdlib.h b/lib/birdlib.h
index 5e533b66..842fce86 100644
--- a/lib/birdlib.h
+++ b/lib/birdlib.h
@@ -21,8 +21,8 @@
/* Logging and dying */
-void log(char *msg, ...);
-void die(char *msg, ...) NORET;
+void log(char *msg, ...) __attribute__((format(printf,1,2)));
+void die(char *msg, ...) __attribute__((format(printf,1,2))) NORET;
#define L_DEBUG "\001" /* Debugging messages */
#define L_INFO "\002" /* Informational messages */