re PR preprocessor/36819 (memleak in split_quote_chain)

2011-10-02  Paolo Carlini  <paolo.carlini@oracle.com>

	PR preprocessor/36819
	* incpath.c (merge_include_chains): Call free_path on
	heads[QUOTE] and tails[QUOTE].

From-SVN: r179426

gcc/ChangeLog

+2011-10-02  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR preprocessor/36819
+	* incpath.c (merge_include_chains): Call free_path on
+	heads[QUOTE] and tails[QUOTE].
+
 2011-10-02  Jan Hubicka  <jh@suse.cz>
 
 	PR lto/47247

gcc/incpath.c

@@ -362,6 +362,8 @@ merge_include_chains (const char *sysroot, cpp_reader *pfile, int verbose)
 void
 split_quote_chain (void)
 {
+  free_path (heads[QUOTE], REASON_QUIET);
+  free_path (tails[QUOTE], REASON_QUIET);
   heads[QUOTE] = heads[BRACKET];
   tails[QUOTE] = tails[BRACKET];
   heads[BRACKET] = NULL;