X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fpath-concat.c;h=e6f44d3e88f43e3cbc6eaba7bac2291723f1ed10;hb=7e3abbd47249138beefb283c6f63126c0eb46412;hp=d6dafc939850ad1467f2612f88649364313e642a;hpb=8d447ad210177980a4747a2208a00d001fc7ccee;p=gnulib.git

diff --git a/lib/path-concat.c b/lib/path-concat.c
index d6dafc939..e6f44d3e8 100644
--- a/lib/path-concat.c
+++ b/lib/path-concat.c
@@ -1,5 +1,5 @@
 /* path-concat.c -- concatenate two arbitrary pathnames
-   Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
+   Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001 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
@@ -26,12 +26,31 @@
 #endif
 
 #include <stdio.h>
+
 #if HAVE_STRING_H
+# if !STDC_HEADERS && HAVE_MEMORY_H
+#  include <memory.h>
+# endif
 # include <string.h>
+#else
+# if HAVE_STRINGS_H
+#  include <strings.h>
+# endif
+#endif
+#if HAVE_STDLIB_H
+# include <stdlib.h>
+#endif
+#if HAVE_UNISTD_H
+# include <unistd.h>
 #endif
-#include <sys/types.h>
 
+#ifndef HAVE_DECL_MALLOC
+"this configure-time declaration test was not run"
+#endif
+#if !HAVE_DECL_MALLOC
 char *malloc ();
+#endif
+
 #ifndef strdup
 char *strdup ();
 #endif
@@ -40,6 +59,10 @@ char *strdup ();
 # define DIRECTORY_SEPARATOR '/'
 #endif
 
+#ifndef FILESYSTEM_PREFIX_LEN
+# define FILESYSTEM_PREFIX_LEN(Filename) 0
+#endif
+
 #ifndef ISSLASH
 # define ISSLASH(C) ((C) == DIRECTORY_SEPARATOR)
 #endif
@@ -86,11 +109,11 @@ path_concat (const char *dir, const char *base, char **base_in_result)
 
   p = mempcpy (p_concat, dir, dir_len);
 
-  if (dir_len > 0)
+  if (dir_len > FILESYSTEM_PREFIX_LEN (dir))
     {
-      if (ISSLASH (*(p - 1)) && ISSLASH(*base))
+      if (ISSLASH (*(p - 1)) && ISSLASH (*base))
 	--p;
-      else if (!ISSLASH (*(p - 1)) && !ISSLASH(*base))
+      else if (!ISSLASH (*(p - 1)) && !ISSLASH (*base))
 	*p++ = DIRECTORY_SEPARATOR;
     }