[Bug c++/51813] [4.7 Regression] -fvisibility=hidden causes std::codecvt members to be undefined

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51813

--- Comment #9 from Jason Merrill <jason at gcc dot gnu.org> 2012-01-13 
17:51:04 UTC ---
Author: jason
Date: Fri Jan 13 17:50:58 2012
New Revision: 183156

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=183156
Log:
    PR c++/51813
    * decl2.c (constrain_visibility): Clear DECL_VISIBILITY_SPECIFIED
    when reducing the visibility.

Added:
    trunk/gcc/testsuite/g++.dg/ext/visibility/template9.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/decl2.c
    trunk/gcc/testsuite/ChangeLog