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We should backport these enhancements:

commit dc0afac3252d0c53716ccaf0b424f7769a66d695
Author: marxin <mliska>
Date:   Wed Feb 20 14:54:35 2019 +0100

    Add new Fortran vector math header file.

commit ae514971341dcc08ec7f8622493a65e7eb1ef9d2
Author: marxin <mliska>
Date:   Thu Mar 7 09:39:55 2019 +0100

    Fix location where math-vector-fortran.h is installed.

commit 27a2f2f34c9e77815c6367cf670e24cbac0db7c0
Author: Florian Weimer <fweimer>
Date:   Thu Mar 7 17:28:13 2019 +0100

    check-wrapper-headers test: Adjust Fortran include file directory

These also need to be backported into Fedora 30+.

I'm dropping the check-wrapper-headers changes from the backport because that is not a test we have downstream. I did backport it, but we lack various header cleanups, and the test fails as a result.

Verified, glibc-2.28-89.el8 contains these files.

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2020:1828