1 files changed, 41 insertions, 0 deletions
diff --git a/lib/make-prefix.c b/lib/make-prefix.c
new file mode 100644
index 0000000..fe4fcd4
--- /dev/null
+++ b/lib/make-prefix.c
@@ -0,0 +1,41 @@
+/* make-prefix.c: construct a pathname prefix.
+
+Copyright (C) 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.  */
+
+#include "config.h"
+
+#include <kpathsea/concatn.h>
+
+
+string
+make_prefix (string prefix, string pathname)
+{
+  string slash_pos = strrchr (pathname, '/');
+  
+  if (slash_pos == NULL)
+    return concat (prefix, pathname);
+  else
+    {
+      string answer = NULL;
+      string path_only = xstrdup (pathname);
+      path_only[slash_pos - pathname] = 0;
+      answer = concatn (path_only, "/", prefix, slash_pos + 1, NULL);
+      free (path_only);
+      
+      return answer;
+    }
+}