re PR pch/55399 (pch tests fail on mips-mti-linux-gnu target)

2012-11-21  Steve Ellcey  <sellcey@mips.com>

	PR pch/55399
	* files.c (pch_open_file): Fix check for implicit_preinclude.

From-SVN: r193709

libcpp/ChangeLog

+2012-11-21  Steve Ellcey  <sellcey@mips.com>
+
+	PR pch/55399
+	* files.c (pch_open_file): Fix check for implicit_preinclude.
+
 2012-11-16  Simon Baldwin  <simonb@google.com>
 
 	* include/cpplib.h (struct cpp_options): Add canonical_system_headers.

libcpp/files.c

@@ -295,7 +295,8 @@ pch_open_file (cpp_reader *pfile, _cpp_file *file, bool *invalid_pch)
      file or the command-line it is not a valid use of PCH.  */
   if (pfile->all_files
       && pfile->all_files->next_file
-      && !pfile->all_files->next_file->implicit_preinclude)
+      && !(pfile->all_files->implicit_preinclude
+	   || pfile->all_files->next_file->implicit_preinclude))
     return false;
 
   flen = strlen (path);