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-rw-r--r--src/verbose.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/verbose.h b/src/verbose.h
index 3382d39f..7e10d252 100644
--- a/src/verbose.h
+++ b/src/verbose.h
@@ -23,7 +23,7 @@
extern int verbosity;
extern void verbose_set_name(const char *name, int authority);
-extern void verbose(int level, const char *file, int line, const char *fmt, ...);
+extern void verbose(int level, const char *file, int line, const char *fmt, ...) __attribute__((format(printf, 4, 5)));
extern void vverbose(int level, const char *file, int line, const char *fmt, va_list args);
# define ERROR(...) do{if(verbosity>=0)verbose(3,__FILE__,__LINE__,__VA_ARGS__);}while(0)