From d0862e2176092420d4e877de0831d1458c39a32b Mon Sep 17 00:00:00 2001
From: Jakob Kaivo <jkk@ung.org>
Date: Wed, 31 Jan 2024 14:49:16 -0500
Subject: compile under c89

---
 src/stdlib/wcstombs.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/stdlib/wcstombs.c b/src/stdlib/wcstombs.c
index 62524aa3..76958ae9 100644
--- a/src/stdlib/wcstombs.c
+++ b/src/stdlib/wcstombs.c
@@ -1,7 +1,13 @@
 #include <stdlib.h>
-#include <wchar.h>
 #include "_stdlib.h"
 
+#ifdef __STDC_VERSION__
+#include <wchar.h>
+#else
+static size_t wcslen(const wchar_t *);
+#include "wchar/wcslen.c"
+#endif
+
 /** convert wide character string to multibyte string **/
 
 size_t wcstombs(char * restrict s, const wchar_t * restrict pwcs, size_t n)
-- 
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