Upgrade gcc to 9.3

[mkoeppe]

We upgrade gcc from 9.2 to 9.3

https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&resolution=FIXED&target_milestone=9.3

part of #29703

tarball: see checksums.ini [upstream_url]

Previous update:

• Xcode 11 breaks gfortran build #28691 (gcc 9.2)
• fedora-32: If gcc 10 is found, install gcc spkg; fix building gcc (9.2.0) spkg with gcc 10 #29674 (patches)

CC: @jhpalmieri @zlscherr

Component: packages: standard

Branch/Commit: u/mkoeppe/upgrade_gcc_to_9_3 @ d07ba7b

Issue created by migration from https://trac.sagemath.org/ticket/29827

[mkoeppe]

Author: Matthias Koeppe

[mkoeppe]

Branch: u/mkoeppe/upgrade_gcc_to_9_3

[mkoeppe]

New commits:

ff3bb3a

build/pkgs/gcc: Update to 9.3.0

[mkoeppe]

Commit: ff3bb3a

[sagetrac-git]

Branch pushed to git repo; I updated commit sha1. This was a forced push. New commits:

9eb8b21	build/pkgs/gcc: Update to 9.3.0
cd59612	build/pkgs/gcc: Remove libsanitizer patches (upstreamed)

[sagetrac-git]

Changed commit from ff3bb3a to cd59612

[mkoeppe]

Reviewer: https://github.com/mkoeppe/sage/actions/runs/615728756

[mkoeppe]

comment:7

Patches need updating

gfortran-9.3.0]   Applying patches from ../patches...
  [gfortran-9.3.0]   Applying ../patches/gcc-multilib-multiarch.patch
  [gfortran-9.3.0]   patching file gcc/config/i386/t-linux64
  [gfortran-9.3.0]   patching file gcc/config/mips/t-linux64
  [gfortran-9.3.0]   patching file gcc/config/rs6000/t-linux
  [gfortran-9.3.0]   Hunk #1 succeeded at 2 with fuzz 2.
  [gfortran-9.3.0]   patching file gcc/config/rs6000/t-linux64
  [gfortran-9.3.0]   patching file gcc/config/s390/t-linux64
  [gfortran-9.3.0]   patching file gcc/config/sparc/t-linux64
  [gfortran-9.3.0]   Applying ../patches/homebrew-9.2.0-catalina.patch
  [gfortran-9.3.0]   patching file fixincludes/fixincl.x
  [gfortran-9.3.0]   Hunk #1 FAILED at 2.
  [gfortran-9.3.0]   Hunk #2 FAILED at 15.
  [gfortran-9.3.0]   Hunk #3 succeeded at 2686 (offset 50 lines).
  [gfortran-9.3.0]   Hunk #4 FAILED at 10388.
  [gfortran-9.3.0]   Hunk #5 succeeded at 10558 (offset 100 lines).
  [gfortran-9.3.0]   Hunk #6 succeeded at 11071 (offset 106 lines).
  [gfortran-9.3.0]   3 out of 6 hunks FAILED -- saving rejects to file fixincludes/fixincl.x.rej
  [gfortran-9.3.0]   patching file fixincludes/inclhack.def
  [gfortran-9.3.0]   Hunk #1 succeeded at 1325 (offset 27 lines).
  [gfortran-9.3.0]   Error applying '../patches/homebrew-9.2.0-catalina.patch'

https://github.com/mkoeppe/sage/runs/2017617134?check_suite_focus=true

[sagetrac-git]

Branch pushed to git repo; I updated commit sha1. New commits:

d07ba7b

build/pkgs/gcc/patches: Remove

[sagetrac-git]

Changed commit from cd59612 to d07ba7b

[mkoeppe]

comment:9

As @zlscherr reports in #31326, upgrading to gcc 9.3 does NOT fix the issues on macOS Big Sur.

homebrew:

• uses this patch for GCC 10.2: https://raw.githubusercontent.com/Homebrew/formula-patches/6a83f36d/gcc/bigsur_2.patch
• notes in https://github.com/Homebrew/homebrew-core/blob/HEAD/Formula/gcc.rb#L53: "Patch for Big Sur, remove with GCC 10.3 - https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98805"

Not sure if anyone has a backport to the GCC 9.x series

[mkoeppe]

Changed author from Matthias Koeppe to none

[mkoeppe]

comment:10

I had thought that staying for a while on the GCC 9.x series would be useful - given how many fixes were necessary in packages for the 10.x series, there may still be optional/experimental/user packages that cannot be built with GCC 10.

But it looks like this is not going anywhere, so let's move on and continue in #29703 with an upgrade to 10.x

[mkoeppe]

Changed reviewer from https://github.com/mkoeppe/sage/actions/runs/615728756 to none

[jhpalmieri]

comment:11

Sounds okay.