Adding upstream version 9.7.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

lib/parse-datetime.h

@@ -0,0 +1,40 @@
+/* Parse a string into an internal timestamp.
+
+   Copyright (C) 1995, 1997-1998, 2003-2004, 2007, 2009-2025 Free Software
+   Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+#include <time.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+bool parse_datetime (struct timespec *restrict,
+                     char const *, struct timespec const *);
+
+/* parse_datetime2 flag: if set, print debug/progress information to STDERR */
+#define PARSE_DATETIME_DEBUG 1
+
+/* same as above, supporting additional flags */
+bool parse_datetime2 (struct timespec *restrict,
+                      char const *, struct timespec const *,
+                      unsigned int flags, timezone_t, char const *);
+
+
+#ifdef __cplusplus
+}
+#endif