1 files changed, 32 insertions, 0 deletions
diff --git a/src/grep/lib/mbrlen.c b/src/grep/lib/mbrlen.c
new file mode 100644
index 0000000..aca8c83
--- /dev/null
+++ b/src/grep/lib/mbrlen.c
@@ -0,0 +1,32 @@
+/* Recognize multibyte character.
+   Copyright (C) 1999-2000, 2008-2021 Free Software Foundation, Inc.
+   Written by Bruno Haible <bruno@clisp.org>, 2008.
+
+   This file is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Lesser General Public License as
+   published by the Free Software Foundation; either version 3 of the
+   License, or (at your option) any later version.
+
+   This file is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public License
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+/* Specification.  */
+#include <wchar.h>
+
+
+static mbstate_t internal_state;
+
+size_t
+mbrlen (const char *s, size_t n, mbstate_t *ps)
+{
+  if (ps == NULL)
+    ps = &internal_state;
+  return mbrtowc (NULL, s, n, ps);
+}