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-rw-r--r--lib/debug.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/debug.c b/lib/debug.c
index 53cefe9d..9e2c9c70 100644
--- a/lib/debug.c
+++ b/lib/debug.c
@@ -41,8 +41,8 @@ void init_debug (void)
debug_level = true;
}
-static void ATTRIBUTE_FORMAT_PRINTF (1, 0) vdebug (const char *message,
- va_list args)
+static void _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (1, 0) vdebug
+ (const char *message, va_list args)
{
if (debug_level)
vfprintf (stderr, message, args);