1 files changed, 28 insertions, 0 deletions
diff --git a/lib/hard-locale.h b/lib/hard-locale.h
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--- /dev/null
+++ b/lib/hard-locale.h
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+/* Determine whether a locale is hard.
+
+   Copyright (C) 1999, 2003-2004, 2009-2023 Free Software Foundation, Inc.
+
+   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 2.1 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/>.  */
+
+#ifndef HARD_LOCALE_H_
+# define HARD_LOCALE_H_ 1
+
+/* Return true if the specified CATEGORY of the current locale is hard, i.e.
+   different from the C or POSIX locale that has a fixed behavior.
+   CATEGORY must be one of the LC_* values, but not LC_ALL.
+   Note: This function uses the current global locale; it ignores the
+   per-thread locale.  */
+extern bool hard_locale (int category);
+
+#endif /* HARD_LOCALE_H_ */