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@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@lists.tetaneutral.net > https://lists.tetaneutral.net/listinfo/cfarm-users > -- Paul H. Hargrove phhargr...@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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