1 files changed, 78 insertions, 0 deletions
diff --git a/lib/version-etc.h b/lib/version-etc.h
new file mode 100644
index 0000000..c6b4eef
--- /dev/null
+++ b/lib/version-etc.h
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+/* Print --version and bug-reporting information in a consistent format.
+   Copyright (C) 1999, 2003, 2005, 2009-2022 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 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/>.  */
+
+/* Written by Jim Meyering. */
+
+#ifndef VERSION_ETC_H
+# define VERSION_ETC_H 1
+
+# include <stdarg.h>
+# include <stdio.h>
+
+# ifdef __cplusplus
+extern "C"
+{
+# endif
+
+extern const char version_etc_copyright[];
+
+/* The three functions below display the --version information in the
+   standard way: command and package names, package version, followed
+   by a short GPLv3+ notice and a list of up to 10 author names.
+
+   If COMMAND_NAME is NULL, the PACKAGE is assumed to be the name of
+   the program.  The formats are therefore:
+
+   PACKAGE VERSION
+
+   or
+
+   COMMAND_NAME (PACKAGE) VERSION.
+
+   The functions differ in the way they are passed author names: */
+
+/* N_AUTHORS names are supplied in array AUTHORS.  */
+extern void version_etc_arn (FILE *stream,
+                             const char *command_name, const char *package,
+                             const char *version,
+                             const char * const * authors, size_t n_authors);
+
+/* Names are passed in the NULL-terminated array AUTHORS.  */
+extern void version_etc_ar (FILE *stream,
+                            const char *command_name, const char *package,
+                            const char *version, const char * const * authors);
+
+/* Names are passed in the NULL-terminated va_list.  */
+extern void version_etc_va (FILE *stream,
+                            const char *command_name, const char *package,
+                            const char *version, va_list authors);
+
+/* Names are passed as separate arguments, with an additional
+   NULL argument at the end.  */
+extern void version_etc (FILE *stream,
+                         const char *command_name, const char *package,
+                         const char *version,
+                         /* const char *author1, ..., NULL */ ...)
+  _GL_ATTRIBUTE_SENTINEL ((0));
+
+/* Display the usual "Report bugs to" stanza.  */
+extern void emit_bug_reporting_address (void);
+
+# ifdef __cplusplus
+}
+# endif
+
+#endif /* VERSION_ETC_H */