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-rw-r--r--m4/mbrtoc32.m47
1 files changed, 6 insertions, 1 deletions
diff --git a/m4/mbrtoc32.m4 b/m4/mbrtoc32.m4
index f2de33aff6..d6401fe2e4 100644
--- a/m4/mbrtoc32.m4
+++ b/m4/mbrtoc32.m4
@@ -1,4 +1,4 @@
-# mbrtoc32.m4 serial 10
+# mbrtoc32.m4 serial 11
dnl Copyright (C) 2014-2023 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
@@ -101,6 +101,11 @@ changequote([,])dnl
])
])
+dnl <https://pubs.opengroup.org/onlinepubs/9699919799/functions/mbrtowc.html>
+dnl POSIX:2018 says regarding mbrtowc: "In the POSIX locale an [EILSEQ] error
+dnl cannot occur since all byte values are valid characters." It is reasonable
+dnl to expect mbrtoc32 to behave in the same way.
+
AC_DEFUN([gl_MBRTOC32_C_LOCALE],
[
AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles