Added printf-format check for logf when using GNUC.

diff --git a/include/log.h b/include/log.h
index 9a77860..8276260 100644 (file)
--- a/include/log.h
+++ b/include/log.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1995-1997, Index Data.
+ * Copyright (c) 1995-1998, Index Data.
  *
  * Permission to use, copy, modify, distribute, and sell this software and
  * its documentation, in whole or in part, for any purpose, is hereby granted,
@@ -24,7 +24,10 @@
  * OF THIS SOFTWARE.
  *
  * $Log: log.h,v $
- * Revision 1.12  1997-09-04 07:59:02  adam
+ * Revision 1.13  1998-10-13 16:11:11  adam
+ * Added printf-format check for logf when using GNUC.
+ *
+ * Revision 1.12  1997/09/04 07:59:02  adam
  * Added include of xmalloc.h.
  *
  * Revision 1.11  1997/09/01 08:49:48  adam
@@ -98,7 +101,11 @@ extern "C" {
 #define LOG_DEFAULT_LEVEL (LOG_FATAL | LOG_ERRNO | LOG_LOG | LOG_WARN)
 
 YAZ_EXPORT void log_init(int level, const char *prefix, const char *name);
-YAZ_EXPORT void logf(int level, const char *fmt, ...);
+YAZ_EXPORT void logf(int level, const char *fmt, ...)
+#ifdef __GNUC__
+       __attribute__ ((format (printf, 2, 3)))
+#endif
+       ;
 YAZ_EXPORT int log_mask_str (const char *str);
 YAZ_EXPORT int log_mask_str_x (const char *str, int level);
 YAZ_EXPORT FILE *log_file(void);