use GCC format __attribute__ on sprinf

diff --git a/libblkid/src/blkidP.h b/libblkid/src/blkidP.h
index 604de3ddb45acd3bd86dc2406a077a08cefa287c..bceda33b66ad126ab49f93f58e118ed251d1226c 100644 (file)
--- a/libblkid/src/blkidP.h
+++ b/libblkid/src/blkidP.h
@@ -435,8 +435,10 @@ extern int blkid_probe_set_value(blkid_probe pr, const char *name,
                 unsigned char *data, size_t len);
 extern int blkid_probe_vsprintf_value(blkid_probe pr, const char *name,
                 const char *fmt, va_list ap);
+       ;
 extern int blkid_probe_sprintf_value(blkid_probe pr, const char *name,
-                const char *fmt, ...);
+                const char *fmt, ...) __attribute__ ((format (printf,3,4)));
+
 extern int blkid_probe_set_magic(blkid_probe pr, blkid_loff_t offset,
                size_t len, unsigned char *magic);