re PR c/30242 (internal error in gcc break compilation)

gcc/

2006-12-20  Carlos O'Donell  <carlos@codesourcery.com>

	PR bootstrap/30242
	* gcc/c-incpath.c (add_standard_paths): Only relocate paths that 
	begin with the configured prefix.

From-SVN: r120088

gcc/ChangeLog

+2006-12-20  Carlos O'Donell  <carlos@codesourcery.com>
+
+	PR bootstrap/30242
+	* gcc/c-incpath.c (add_standard_paths): Only relocate paths that 
+	begin with the configured prefix. 
+
 2006-12-20  Jan Hubicka  <jh@suse.cz>
 
 	PR target/30213

gcc/c-incpath.c

@@ -164,13 +164,12 @@ add_standard_paths (const char *sysroot, const char *iprefix,
 	  /* Should this directory start with the sysroot?  */
 	  if (sysroot && p->add_sysroot)
 	    str = concat (sysroot, p->fname, NULL);
-	  else if (!p->add_sysroot && relocated)
+	  else if (!p->add_sysroot && relocated
+		   && strncmp (p->fname, cpp_PREFIX, cpp_PREFIX_len) == 0)
 	    {
 	      /* If the compiler is relocated, and this is a configured 
 		 prefix relative path, then we use gcc_exec_prefix instead 
 		 of the configured prefix.  */
-	      gcc_assert (strncmp (p->fname, cpp_PREFIX,
-				     cpp_PREFIX_len) == 0);
 	      str = concat (gcc_exec_prefix, p->fname
 			      + cpp_PREFIX_len, NULL);
 	      str = update_path (str, p->component);