--- gcc-3.4.6/gcc/gcc.c	2013-05-19 20:22:04.000000000 +0200
+++ gcc/gcc.c	2013-05-19 20:23:32.000000000 +0200
@@ -1403,16 +1403,29 @@
 #define MD_STARTFILE_PREFIX_1 ""
 #endif
 
+#ifndef STANDARD_EXEC_PREFIX_1
+#define STANDARD_EXEC_PREFIX_1 "/usr/libexec/gcc/"
+#endif
+#ifndef STANDARD_EXEC_PREFIX_2
+#define STANDARD_EXEC_PREFIX_2 "/usr/lib/gcc/"
+#endif
+#ifndef STANDARD_STARTFILE_PREFIX_1
+#define STANDARD_STARTFILE_PREFIX_1 "/lib/"
+#endif
+#ifndef STANDARD_STARTFILE_PREFIX_2
+#define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
+#endif
+
 static const char *const standard_exec_prefix = STANDARD_EXEC_PREFIX;
-static const char *const standard_exec_prefix_1 = "/usr/libexec/gcc/";
-static const char *const standard_exec_prefix_2 = "/usr/lib/gcc/";
+static const char *const standard_exec_prefix_1 = STANDARD_EXEC_PREFIX_1;
+static const char *const standard_exec_prefix_2 = STANDARD_EXEC_PREFIX_2;
 static const char *md_exec_prefix = MD_EXEC_PREFIX;
 
 static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
 static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
 static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
-static const char *const standard_startfile_prefix_1 = "/lib/";
-static const char *const standard_startfile_prefix_2 = "/usr/lib/";
+static const char *const standard_startfile_prefix_1 = STANDARD_STARTFILE_PREFIX_1;
+static const char *const standard_startfile_prefix_2 = STANDARD_STARTFILE_PREFIX_2;
 
 static const char *const tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
 static const char *tooldir_prefix;
@@ -4483,7 +4496,9 @@
 		     and it is better not to use them for searching
 		     at run time.  In particular, stage1 loses.  */
 		  if (!IS_ABSOLUTE_PATH (pl->prefix))
+#ifndef VOL_SEPARATOR
 		    continue;
+#endif /* VOL_SEPARATOR */
 #endif
 		  /* Try subdirectory if there is one.  */
 		  if (multilib_dir != NULL
@@ -5853,12 +5868,11 @@
   /* Exclude directories that the linker is known to search.  */
   if (linker
       && ((cp - path == 6
-	   && strcmp (path, concat (dir_separator_str, "lib",
-				    dir_separator_str, ".", NULL)) == 0)
+	   && strcmp (path, concat (STANDARD_STARTFILE_PREFIX_1,
+				    ".", NULL)) == 0)
 	  || (cp - path == 10
-	      && strcmp (path, concat (dir_separator_str, "usr",
-				       dir_separator_str, "lib",
-				       dir_separator_str, ".", NULL)) == 0)))
+	      && strcmp (path, concat (STANDARD_STARTFILE_PREFIX_2,
+				       ".", NULL)) == 0)))
     return 0;
 
   return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));