[Patch] Edit contrib/ files to download gfortran prerequisites

[Richard Biener]

On Wed, Sep 20, 2017 at 10:35 PM, Damian Rouson
<damian@sourceryinstitute.org> wrote:
> Attached is a patch that adds the downloading of gfortran prerequisites OpenCoarrays and MPICH in the contrib/download_prerequisites script.  The patch also provides a useful error message when neither wget or curl are available on the target platform.  I tested this patch with several choices for the command-line options on macOS (including --md5 and --sha512) and Ubuntu Linux (including --sha512).    A suggested ChangeLog entry is
>
>         * contrib/download_prerequisites: Download OpenCoarrays and MPICH.
>         * contrib/prerequisites.sha5: Add sha512 message digests for OpenCoarrays and MPICH.
>         * contrib/prerequisites.md5: Add md5 message digests for OpenCoarrays and MPICH.
>
>
> OK for trunk?  If so, I’ll ask Jerry to commit this.  I don’t have commit rights.

Can you make this optional similar to graphite/isl?  Also I see no support in
the toplevel build machinery to build/install the libs as part of GCC
so how does
that work in the end?

Thanks,
Richard.

> Damian