[cfarm-users] gcc111 running AIX wtth gcc-4.8.1 does not have versions of mpfr, mpc of gmp capable of rebuilding gcc-4.8.1

[Paul Hargrove]

For the record there is another (simple) way to satisfy the dependencies:

Between the "cd" and "configure" steps run
"./contrib/download_prerequisites".
One gets the mpfr, gmp and mpc versions that were "blessed" for the given
gcc release.
The configure and build of these packages is then handled transparently.

-Paul


On Thu, Oct 12, 2017 at 11:16 AM, CM Graff via cfarm-users <
cfarm-users at lists.tetaneutral.net> wrote:

> gcc111 uses gcc-4.8.1 so as an experiment I performed the following test:
>
>
> wget http://ftp.gnu.org/gnu/gcc/gcc-4.8.1/gcc-4.8.1.tar.gz
> gunzip gcc-4.8.1.tar.gz
> tar -xf gcc-4.8.1.tar
> cd gcc-4.8.1
> ./configure --prefix="${HOME}/testarea"
> make -j2 >logfile 2>errlog
> make install
>
>   configure: error: Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC
> 0.8.0+.
>   Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify [..]
>
> Gcc recommends that the local libraries libgmp, libmpfr and libmpc be
> installed on the development machine, which they are, but they do not
> coordinate with gcc-4.8.1.
>
> https://gcc.gnu.org/wiki/InstallingGCC
>
> "The difficult way, which is not recommended, is to download the
> sources for GMP, MPFR and MPC, then configure and install each of them
> in non-standard locations, then configure GCC with
> --with-gmp=/some/silly/path/gmp [...]"
>
> I have no problem with both techniques of installing gcc, however many
> modern guides, scripts and cross build systems assume the presence of
> working gmp, mpfr and mpc as per the gcc documentation provided above.
>
> One option might be to update the gcc version, another to update the
> mpc/mpfr/gmp versions. Either way the canonical test of compiler +
> standard C library + gmp/mpfr/mpc efficacy is that it can rebuild
> itself.
>
> -bash-4.3$ gcc -v
> Using built-in specs.
> COLLECT_GCC=gcc
> COLLECT_LTO_WRAPPER=/opt/freeware/libexec/gcc/powerpc-
> ibm-aix7.1.0.0/4.8.1/lto-wrapper
> Target: powerpc-ibm-aix7.1.0.0
> Configured with: ../gcc-4.8.1/configure --with-as=/usr/bin/as
> --with-ld=/usr/bin/ld --enable-languages=c,c++,fortran
> --prefix=/opt/freeware --mandir=/opt/freeware/man
> --infodir=/opt/freeware/info --enable-version-specific-runtime-libs
> --disable-nls --enable-decimal-float=dpd --host=powerpc-ibm-aix7.1.0.0
> Thread model: aix
> gcc version 4.8.1 (GCC)
>
> No such problems were encountered when performing a control test with
> gcc75 which has gcc-4.9.2. If I am not mistaken, the development
> headers in /opt/freeware were installed independently and likely never
> coordinated with the original build of gcc-4.8.1.
>
>
> Graff
> _______________________________________________
> cfarm-users mailing list
> cfarm-users at lists.tetaneutral.net
> https://lists.tetaneutral.net/listinfo/cfarm-users
>



-- 
Paul H. Hargrove                          PHHargrove at lbl.gov
Computer Languages & Systems Software (CLaSS) Group
Computer Science Department               Tel: +1-510-495-2352
Lawrence Berkeley National Laboratory     Fax: +1-510-486-6900
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