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-rw-r--r--quotacheck.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/quotacheck.h b/quotacheck.h
index 10ac6d1..a4f8955 100644
--- a/quotacheck.h
+++ b/quotacheck.h
@@ -36,7 +36,7 @@ extern size_t free_mem = 0;
#endif
void *xmalloc(size_t size);
-void debug(int df, char *fmtstr, ...);
+void debug(int df, char *fmtstr, ...) __attribute__ ((__format__ (__printf__, 2, 3)));
int ask_yn(char *q, int def);
struct dquot *lookup_dquot(qid_t id, int type);
struct dquot *add_dquot(qid_t id, int type);