[Bug c++/51812] [4.7 regression] Virtual public inheritance and thunks leads to "undefined reference" in header files.

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51812

--- Comment #7 from Jason Merrill <jason at gcc dot gnu.org> 2012-01-24 
13:37:43 UTC ---
Author: jason
Date: Tue Jan 24 13:37:38 2012
New Revision: 183475

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=183475
Log:
    PR c++/51812
    * cgraphunit.c (cgraph_decide_is_function_needed): Don't always
    output static aliases.

Added:
    trunk/gcc/testsuite/g++.dg/inherit/covariant20.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/cgraphunit.c
    trunk/gcc/testsuite/ChangeLog