[Bug c++/51832] [4.7 regression] Rev.182970 causes LTO link errors (multiple definitions of allocator_traits)

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51832

--- Comment #20 from Jason Merrill <jason at gcc dot gnu.org> 2012-01-22 
20:56:37 UTC ---
Author: jason
Date: Sun Jan 22 20:56:34 2012
New Revision: 183396

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=183396
Log:
    PR c++/51832
    * varpool.c (varpool_analyze_pending_decls): Copy DECL_EXTERNAL
    for extra name aliases.

Added:
    trunk/gcc/testsuite/g++.dg/lto/pr51832.h
    trunk/gcc/testsuite/g++.dg/lto/pr51832_0.C
    trunk/gcc/testsuite/g++.dg/lto/pr51832_1.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/varpool.c