[google/gcc-4_7] Fix problem with asm spec for -gsplit-dwarf

[Cary Coutant]

2012-09-12   Cary Coutant  <ccout...@google.com>

gcc/
        * gcc.c (replace_extension_spec_func): Restrict search for
        extension to last component of path.

Index: gcc/gcc.c
===================================================================
--- gcc/gcc.c   (revision 191233)
+++ gcc/gcc.c   (working copy)
@@ -8413,12 +8413,18 @@ replace_extension_spec_func (int argc, c
   char *name;
   char *p;
   char *result;
+  int i;
 
   if (argc != 2)
     fatal_error ("too few arguments to %%:replace-extension");
 
   name = xstrdup (argv[0]);
-  p = strrchr (name, '.');
+
+  for (i = strlen(name) - 1; i >= 0; i--)
+    if (IS_DIR_SEPARATOR (name[i]))
+      break;
+
+  p = strrchr (name + i + 1, '.');
   if (p != NULL)
       *p = '\0';