[Bug c++/58201] [4.9 Regression] Undefined reference to `B::B(void const**)'

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58201

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |paolo.carlini at oracle dot com

--- Comment #12 from Paolo Carlini <paolo.carlini at oracle dot com> ---
The fix caused a regression:

FAIL: g++.dg/template/cond2.C -std=gnu++98 (test for warnings, line 9)
FAIL: g++.dg/template/cond2.C -std=gnu++11 (test for warnings, line 9)

as described here too: http://gcc.gnu.org/ml/gcc-patches/2013-09/msg00425.html

I'm a bit worried, because normally we don't check in the testsuite that those
messages about the instantiation point have the right line number, thus, we may
well have a pretty serious diagnostic regression, beyond the specific failure.