GCC build failure, HEAD@190853 on native

[GCC regression tester <regress at geoffk dot org>]

With your recent patch, GCC HEAD revision 190853 had problems on:
native: build (about the same as the previous build)
Attached is build output for those targets.
The previous build was of revision 190852.

Log information for changes since the last build:
------------------------------------------------------------------------
r190853 | burnus | 2012-09-01 23:40:27 -0700 (Sat, 01 Sep 2012) | 7 lines
Changed paths:
   M /trunk/gcc/fortran/ChangeLog
   M /trunk/gcc/fortran/symbol.c

2012-09-02  Tobias Burnus  <burnus@net-b.de>

        PR fortran/54426
        * symbol.c (find_common_symtree): New function.
        (gfc_undo_symbols): Use it; free common_head if needed.


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For more information, see <http://glutton.geoffk.org/HEAD/>.

Attachment: native-log.txt
Description: Text document

-- 
Geoffrey Keating <geoffk@geoffk.org> 
(via an automated GCC regression-testing script.)