From: Jakub Jelinek <jakub@redhat.com>
Date: Wed, 26 Jan 2011 06:48:04 +0000 (+0100)
Subject: re PR pch/47430 (Random PCH related bootstrap failures on powerpc64-linux)
X-Git-Tag: releases/gcc-4.6.0~957
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=237e9384cf7d1b73333267eaa6d30f0f3ac33668;p=thirdparty%2Fgcc.git

re PR pch/47430 (Random PCH related bootstrap failures on powerpc64-linux)

	PR pch/47430
	* c-opts.c (c_common_post_options): Call c_common_no_more_pch
	after init_c_lex if pch_file is set.

From-SVN: r169276
---

diff --git a/gcc/c-family/ChangeLog b/gcc/c-family/ChangeLog
index 30c1ea061227..9f88e975429e 100644
--- a/gcc/c-family/ChangeLog
+++ b/gcc/c-family/ChangeLog
@@ -1,3 +1,9 @@
+2011-01-26  Jakub Jelinek  <jakub@redhat.com>
+
+	PR pch/47430
+	* c-opts.c (c_common_post_options): Call c_common_no_more_pch
+	after init_c_lex if pch_file is set.
+
 2011-01-26  Dave Korn  <dave.korn.cygwin@gmail.com>
 
 	PR c++/43601
diff --git a/gcc/c-family/c-opts.c b/gcc/c-family/c-opts.c
index befd64498a4b..8d6e6e7e2435 100644
--- a/gcc/c-family/c-opts.c
+++ b/gcc/c-family/c-opts.c
@@ -1,5 +1,5 @@
 /* C/ObjC/C++ command line option handling.
-   Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+   Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
    Free Software Foundation, Inc.
    Contributed by Neil Booth.
 
@@ -995,6 +995,12 @@ c_common_post_options (const char **pfilename)
     {
       init_c_lex ();
 
+      /* When writing a PCH file, avoid reading some other PCH file,
+	 because the default address space slot then can't be used
+	 for the output PCH file.  */
+      if (pch_file)
+	c_common_no_more_pch ();
+
       /* Yuk.  WTF is this?  I do know ObjC relies on it somewhere.  */
       input_location = UNKNOWN_LOCATION;
     }