http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57208

--- Comment #29 from Martin Jambor <jamborm at gcc dot gnu.org> ---
(In reply to Martin Liška from comment #28)
> Patch solved the problem for chromium ;) I will test libreoffice tomorrow.

Great, I have submitted the patch to the mailing list then:

http://gcc.gnu.org/ml/gcc-patches/2013-06/msg01422.html
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From: "allan at archlinux dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/57653] filename information discarded when using -imacros
Date: Tue, 25 Jun 2013 11:06:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?idW653

--- Comment #17 from Allan McRae <allan at archlinux dot org> ---
Created attachment 30359
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id0359&actioníit
gdb log when using -include

When using -include instead of -imacros, the trail is:

LC_ENTER   foo.c
LC_RENAME  <command-line>
LC_ENTER   /usr/include/stdc-predef.h
LC_LEAVE   0x0
LC_ENTER   foo.h
LC_LEAVE   0x0
LC_RENAME  foo.c
LC_LEAVE   0x0

gdb log with -include attached.