Date: Wed, 12 May 1999 23:57:30 +0100 From: Mark Ovens <marko@uk.radan.com> To: Doug White <dwhite@resnet.uoregon.edu> Cc: FreeBSD-questions <questions@FreeBSD.ORG> Subject: Re: gcc differences between aout & ELF Message-ID: <19990512235730.B258@marder-1> In-Reply-To: <Pine.BSF.4.03.9905121137220.23756-100000@resnet.uoregon.edu>; from Doug White on Wed, May 12, 1999 at 11:38:32AM -0700 References: <19990506213653.B255@marder-1> <Pine.BSF.4.03.9905121137220.23756-100000@resnet.uoregon.edu>
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On Wed, May 12, 1999 at 11:38:32AM -0700, Doug White wrote:
> What FreeBSD version are you on?
>
3.1-R, from the CDs
> On Thu, 6 May 1999, Mark Ovens wrote:
>
> > The problem is that symbols defined in libstdc++ are being redefined
> > in libgcc. This is the sort of output I'm getting (the linker is
> > run from a script, not a Makefile):
> >
> > linking PCOMPILE for OPL/autopcc
> > /usr/local/lib/gcc-lib/i386-unknown-freebsd3.0/2.8.1/libgcc.a(exception.o): In function `bad_cast type_info function':
> >
> > /tmp/usr/ports/lang/gcc28/work/gcc-2.8.1/./cp/exception.cc(.text+0x0): multiple definition of `terminate(void)'
> >
> > /usr/lib/libstdc++.a(exceptioni.o)(.text+0x128): first defined here
> >
> > /usr/libexec/elf/ld: Warning: size of symbol `terminate__Fv' changed from 65 to 12 in exception.o
> >
> > and:
> >
> > /usr/marko/libopt/libutc.a(utc_string.o): In function `UTC_String::operator<<(short const &)':
> > utc_string.o(.text+0x13d5): undefined reference to `ios virtual table'
> > utc_string.o(.text+0x1427): undefined reference to `ostream::ios virtual table'
> > utc_string.o(.text+0x1431): undefined reference to `ostrstream::ios virtual table'
>
> This was a bug introduced into -current for a short while, then reverted
> when it broke all C++ libraries.
>
I've fixed the first set of errors (functions in libstdc++ being
redefined in libgcc). In another thread (about egcs) there was a
fix for this by renaming libstdc++ and making a symlink to libgcc.
Another fix I found was to remove exceptioni.o from libstdc++ using
``ar -d libstdc++.a exceptioni.o''.
The second set of errors (undefined references to ios virtual table)
were fixed by compiling with ``-fno-inline''. However, this flag
introduced a new error:
undefined reference to `ostream & operator<<<int>(ostream &, smanip<int> const &)
which occurs now in 3 files (once each). It seems to be caused by
the use of ``setprecision(n)''. This is the function:
FOO_BAR& FOO_BAR::operator<<(
const double &d
)
{
char buf[200];
ostrstream stream(buf, 200);
stream << setprecision(15) << d << '\0';
*this += buf;
return *this;
}
Any ideas?
> > Does any of the above tell you anything? and, more importantly,
> > can you suggest a fix?
>
> 'make clean'?
>
What exactly does that do?
Well, thanks again for all your help. I'm nearly there now :-)
> Doug White
> Internet: dwhite@resnet.uoregon.edu | FreeBSD: The Power to Serve
> http://gladstone.uoregon.edu/~dwhite | www.freebsd.org
>
>
--
FreeBSD - The Power To Serve http://www.freebsd.org
My Webpage http://www.users.globalnet.co.uk/~markov
_______________________________________________________________
Mark Ovens, CNC Apps Engineer, Radan Computational Ltd. Bath UK
CAD/CAM solutions for Sheetmetal Working Industry
mailto:marko@uk.radan.com http://www.radan.com
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