On Sun, Jan 5, 2020 at 9:28 PM Bruno Haible <br...@clisp.org> wrote: > > Hi, > > The minimum support library version of MPC for building GCC 10 is not > correct. > > After downloading gcc-10-20191229.tar.xz and > $ cd gcc-10-20191229/gcc/doc > $ ./install.texi2html > $ xdg-open HTML/prerequisites.html > I installed > - gmp 4.3.2 - works, > - mpfr 3.1.0 - works, > - mpc 0.8.1 - fails! > > The failure has been reported already in [1]. The fix is to use > > - mpc 1.0.3 - works.
Indeed. I checked 0.8.2 and it doesn't work, I checked 1.0.1 and that does so I adjusted it to 1.0.1 or later. Richard. > This wastes some time for everyone who attempts to install GCC 10 from > scratch. > > In [2] it was suggested to look in the contrib/download_prerequisites script. > This script indeed contains > > mpc='mpc-1.0.3.tar.gz' > > Additionally, the mpc-0.8.1 release is so old that it is not (or no longer) > on ftp.gnu.org [3]. > > Therefore I would suggest > 1) to change the documentation (HTML/prerequisites.html) in the GCC 10 > snapshots to mention mpc-1.0.3 instead of mpc-0.8.1, > 2) likewise, change https://gcc.gnu.org/install/prerequisites.html > to mention mpc-1.0.3 instead of mpc-0.8.1. > > Bruno > > [1] https://gcc.gnu.org/ml/gcc/2017-05/msg00022.html > [2] https://gcc.gnu.org/ml/gcc/2017-05/msg00024.html > [3] https://ftp.gnu.org/gnu/mpc/ >
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