From 27addf0e3f2222974148137ae4255e74dc70f434 Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert@cs.ucla.edu>
Date: Sat, 17 Feb 2001 00:19:02 +0000
Subject: [PATCH] Initial revision

---
 m4/mbrtowc.m4 | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 m4/mbrtowc.m4

diff --git a/m4/mbrtowc.m4 b/m4/mbrtowc.m4
new file mode 100644
index 0000000..3e2269c
--- /dev/null
+++ b/m4/mbrtowc.m4
@@ -0,0 +1,19 @@
+#serial 1
+
+dnl From Paul Eggert
+
+AC_DEFUN(jm_FUNC_MBRTOWC,
+[
+  AC_MSG_CHECKING([whether mbrtowc is declared])
+  AC_CACHE_VAL(jm_cv_func_mbrtowc,
+    [AC_TRY_LINK(
+       [#include <wchar.h>],
+       [return !mbrtowc;],
+       [jm_cv_func_mbrtowc=yes],
+       [jm_cv_func_mbrtowc=no])])
+  if test $jm_cv_func_mbrtowc = yes; then
+    AC_MSG_RESULT(yes)
+    AC_DEFINE(HAVE_MBRTOWC, 1,
+      [Define to 1 if mbrtowc exists and is properly declared.])
+  fi
+])
-- 
2.45.2