File gnu_printf.patch of Package exim.18492

Index: exim-4.97.1/src/exim.c
===================================================================
--- exim-4.97.1.orig/src/exim.c
+++ exim-4.97.1/src/exim.c
@@ -835,6 +835,9 @@ _exit(rc);
 
 
 /* Print error string, then die */
+#ifdef __GNUC__
+static void exim_fail(const char * fmt, ...) __attribute__((format (printf, 1, 2)));
+#endif
 static void
 exim_fail(const char * fmt, ...)
 {
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