RE: Bootstrap failures on i386-pc-solaris2.10

[Arthur Haas <ahaas at impactweather dot com>]

I'll update my repo shortly and replace the '--with-arch' and '--with-tune' arguments as you suggest. As for the '--disable-libstdcxx-pch'
argument, I had build problems months ago and this argument fixed the problem, although now looking at the configure script for libstdc
it looks like the correct argument should be '--enable-libstdcxx-pch=no' if it is to be used. The '--enable-threads' argument is another configuration option I added long ago as well. The script which configures and starts my GCC builds needs some cleanup ...

Thanks.

Art Haas

-----Original Message-----
From: Rainer Orth [mailto:ro@CeBiTec.Uni-Bielefeld.DE]
Sent: Thursday, April 01, 2010 9:25 AM
To: Arthur Haas
Cc: gcc@gcc.gnu.org
Subject: Re: Bootstrap failures on i386-pc-solaris2.10

Hi Art,

> My builds on my X86 solaris box have failed since yesterday, and
> I've just found bug 43615 in Bugzilla which indicates a different
> but similar issue for an x86-64 build.I'm running Solaris 10 on an
> older Dell box with a Pentium4 chip, and have been building
> gcc with the '--disable-multilib' argument for quite some time.
>
> Here's the config info from the last build which worked:
>
> $ gcc -v
> Using built-in specs.
> COLLECT_GCC=gcc
> COLLECT_LTO_WRAPPER=/export/home/arth/local/libexec/gcc/i386-pc-solaris2.10/4.5.0/lto-wrapper
> Target: i386-pc-solaris2.10
> Configured with: /home/ahaas/gnu/gcc.git/configure --prefix=/export/home/arth/local --enable-languages=c,c++,objc,fortran --disable-nls --with-gmp=/export/home/arth/local --with-mpfr=/export/home/arth/local --enable-checking=release --enable-threads --with-gnu-as --with-as=/export/home/arth/local/bin/as --with-gnu-ld --with-ld=/export/home/arth/local/bin/ld --disable-multilib --disable-libstdcxx-pch --enable-objc-gc --build=i386-pc-solaris2.10 --with-arch=pentium4 --with-tune=pentium4
> Thread model: posix
> gcc version 4.5.0 20100330 (experimental) (GCC)
>
> Here's the last bits of today's build log - the '--disable-multilib' configure
> option should have skipped the 'amd64' stuff below ...

The --disable-multilib option has been broken by a recent patch.  This
is a known bug and will hopefully be fixed soon.

Configuring with --with-arch=pentium4 --with-tune=pentium4 is wrong and
doesn't work in the general case, as you've discovered, since it breaks
the 64-bit support.  You just didn't notice the problem before due to
--disable-multilib.  Use --with-arch_32=pentium4 --with-tune_32=pentium4
instead, or simply update to current mainline: my patch to default the
i?86-*-solaris2* configurations to pentium4 just went in.

As for the other configure options: --enable-threads is superfluous,
it's the default.  What are you trying to achieve with
--disable-libstdcxx-pch?

        Rainer

--
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Rainer Orth, Center for Biotechnology, Bielefeld University