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-rw-r--r--src/proto.h18
1 files changed, 15 insertions, 3 deletions
diff --git a/src/proto.h b/src/proto.h
index 653c089d8..48c7b4d00 100644
--- a/src/proto.h
+++ b/src/proto.h
@@ -108,19 +108,31 @@ int
# ifdef __BORLANDC__
_RTLENTRYF
# endif
-smsg(const char *, ...);
+smsg(const char *, ...)
+#ifdef USE_PRINTF_FORMAT_ATTRIBUTE
+ __attribute__((format(printf, 1, 0)))
+#endif
+ ;
int
# ifdef __BORLANDC__
_RTLENTRYF
# endif
-smsg_attr(int, const char *, ...);
+smsg_attr(int, const char *, ...)
+#ifdef USE_PRINTF_FORMAT_ATTRIBUTE
+ __attribute__((format(printf, 2, 3)))
+#endif
+ ;
int
# ifdef __BORLANDC__
_RTLENTRYF
# endif
-smsg_attr_keep(int, const char *, ...);
+smsg_attr_keep(int, const char *, ...)
+#ifdef USE_PRINTF_FORMAT_ATTRIBUTE
+ __attribute__((format(printf, 2, 3)))
+#endif
+ ;
int
# ifdef __BORLANDC__