1 files changed, 46 insertions, 0 deletions
diff --git a/gnu/usr.bin/patch/backupfile.h b/gnu/usr.bin/patch/backupfile.h
new file mode 100644
index 000000000000..dfd1fc4e138e
--- /dev/null
+++ b/gnu/usr.bin/patch/backupfile.h
@@ -0,0 +1,46 @@
+/* backupfile.h -- declarations for making Emacs style backup file names
+   Copyright (C) 1990, 1991, 1992 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 2, 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, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+/* When to make backup files. */
+enum backup_type
+{
+  /* Never make backups. */
+  none,
+
+  /* Make simple backups of every file. */
+  simple,
+
+  /* Make numbered backups of files that already have numbered backups,
+     and simple backups of the others. */
+  numbered_existing,
+
+  /* Make numbered backups of every file. */
+  numbered
+};
+
+extern enum backup_type backup_type;
+extern char *simple_backup_suffix;
+
+#ifdef __STDC__
+char *find_backup_file_name (char *file);
+enum backup_type get_version (char *version);
+void addext (char *, char *, int);
+#else
+char *find_backup_file_name ();
+enum backup_type get_version ();
+void addext ();
+#endif