1 files changed, 7 insertions, 0 deletions
diff --git a/proto.h b/proto.h
index 2b028a190b..08399458f8 100644
--- a/proto.h
+++ b/proto.h
@@ -4052,6 +4052,13 @@ PERL_CALLCONV void	Perl_offer_nice_chunk(pTHX_ void *chunk, U32 chunk_size)
 			__attribute__nonnull__(pTHX_1);
 
 
+#ifndef SPRINTF_RETURNS_STRLEN
+PERL_CALLCONV int	Perl_my_sprintf(char *buffer, const char *pat, ...)
+			__attribute__nonnull__(1)
+			__attribute__nonnull__(2);
+
+#endif
+
 END_EXTERN_C
 /*
  * ex: set ts=8 sts=4 sw=4 noet: