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-rw-r--r--src/bin/pg_dump/dumputils.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/bin/pg_dump/dumputils.h b/src/bin/pg_dump/dumputils.h
index 027ed1c7cea..6b82db2adb7 100644
--- a/src/bin/pg_dump/dumputils.h
+++ b/src/bin/pg_dump/dumputils.h
@@ -44,7 +44,8 @@ typedef void (*on_exit_nicely_callback) (int code, void *arg);
extern int quote_all_identifiers;
extern const char *progname;
-extern void (*on_exit_msg_func) (const char *modulename, const char *fmt, va_list ap);
+extern void (*on_exit_msg_func) (const char *modulename, const char *fmt, va_list ap)
+__attribute__((format(PG_PRINTF_ATTRIBUTE, 2, 0)));
extern void init_parallel_dump_utils(void);
extern const char *fmtId(const char *identifier);