------- Additional Comments From dave at hiauly1 dot hia dot nrc dot ca
2005-04-05 12:06 -------
Subject: Re: [4.0/4.1 Regression] Undefined symbol: vtable for
__cxxabiv1::__vmi_class_type_info
> ------- Additional Comments From mmitchel at gcc dot gnu dot org 2005-04-05
> 06:49 -------
> Dave --
>
> I suspect that there is some PCH involvement here. In particular, the
> warnings
> you're seeing while compiling header_cassert are very surprising, in that the
> preprocessed source for that file does not contain the string "_S_do_it".
> So, I
> think the problem is related to PCH. To fix that, I'll need a test case that
> I
> can reproduce in a cross environment; i.e., preprocessed source that I can
> turn
> into a PCH, and then some use of the PCH that produces the warnings.
>
> In any case, I'm going to test, and then check in, the latest patch, as lots
> of
> link-time warnings is better than link failures.
The warnings are from GCC:
ginyu% grep "used but never defined" *.c
decl2.c: cp_warning_at ("inline function %qD used but never defined",
decl);
You could be right that this is a PCH problem and possibly configuring
with --disable-libstdcxx-pch would help.
Dave
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19159
