Hi,

gcc-12-12-20220206 in experimental FTBFS on hurd-i386 due to missing
patches for gccgo, gnu.h and an yet unresolved bug in src/Makefile.in.
Attached are patches needed for a successful build.

This bug has been reported by Mathias and assigned upstream, see
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104290
but no patches are yet committed.

debian_rules.patch.patch patches debian/rules.patch to include the two
patches: gcc_config_gnu.h.diff fixing the split-stack problem when
building gotools and libgo_go_net_unixsock_readmsg_cloexec.go.diff
fixing the build of libgo. The last patch src_Makefile.in.patch, is for
src/Makefile.in moving
all-target-libgo: maybe-all-target-libbacktrace
all-target-libgo: maybe-all-target-libatomic
outside of the
@unless gcc-bootstrap
@endunless gcc-bootstrap
pair. This patch is not part of the debian_rules.patch since I'm unsure
if this a patch is needed for all architectures or GNU/Hurd only.

BTW: Creating a new src/Makefile.in by
(cd src; autogen Makefile.def) does still create a buggy Makefile.in.
The reason of why some dependencies are within the @unless/@endunless
pair is still unknown. configure{,.ac} has the following note:

# Do not nest @if/@endif or @unless/@endunless pairs, because
# configure will not warn you at all.

Googling around did not help much, I've found no documentation of it's
use and how to encounter it.

Just a reflection: Matthias you are really doing a great job with the
gcc releases: Kudos!

Thanks!

retitle 1005297 gcc-12-12-29229214: FTBFS on hurd-i386
thanks

Attached are patches to successfully build gcc-12-12-20220214-1 from source:

debian_rules.patch.patch: Adds hurd-specific patches to to debian/rules.patch.
gcc_config_gnu.h.diff: Re-enables split-stack support.

The patches below are needed for a successful build of libgo.so.21.0.0:
libgo_go_net_unixsock_readmsg_cloexec.go.diff
libgo_go_runtime_netpoll_hurd.go.diff
libgo_go_runtime_os_hurd.go.diff
libgo_go_syscall_exec_bsd.go.diff
libgo_go_syscall_exec_hurd.go.diff
libgo_go_os_user_cgo_listgroups_unix.go.diff
libgo_go_os_user_getgrouplist_unix.go.diff
libgo_go_internal_testenv_testenv_unix.go.diff
libgo_go_os_exec_internal_fdtest_exists_unix.go.diff

Makefile.in.diff: This patch is modified from the upstream patch
src_Makefile.in.diff since the Debian-specific patch gm2.diff makes changes to
src/Makefile.in before Makefile.in.diff is applied.

All patches have been submitted upstream in
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104290

The patch, libgo_go_net_unixsock_readmsg_cloexec.go.diff, has already been
committed upstream by Ian.

Thanks!

retitle 1005297 gcc-12-12-20220222: FTBFS on hurd-i386
thanks

Hello,

Unfortunately the patch Makefile.in.diff is needed to for a successful build.
Attached here for completeness.

Thanks!

the patches are applied upstream, however the build still fails with a linker error.

found 1005297 gcc-12-12-20220302-1
retitle 1005297 gcc-12-12-20220302-1: FTBFS on hurd-i386
tags 1005297 + patch
thanks

Hi again,

Unfortunately the Debian patch Makefile.in.diff is needed to for a
successful build. Attached again here for completeness, and should be
applied after gm2.diff.

For more information about this problem, see
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104660

In the reply from Richard Biener to this bug the writes:
https://gcc.gnu.org/pipermail/gcc-bugs/2022-February/778542.html

Thanks!

found 1005297 12-20220313-1
retitle 1005297 12-20220313-1: FTBFS on hurd-i386
thanks


Note: gcc-12-12-20220313-1 builds fine with pr104290-followup.diff and
Makefile.in.diff.

Mathias,

In Debian you apply the patch gm2.diff to src/Makefile.in. Why not apply
Makefile.in.diff too, to make gcc-12 build on GNU/Hurd until fixed upstream. Or
maybe this is a Debian problem?? See upstream bug
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104660

Thanks!

found 1005297 12-20220319-1
retitle 1005297 gcc-12-12-20220319-1: FTBFS on hurd-i386
thanks


Note: gcc-12-12-20220319-1 builds fine with pr104290-followup.diff and
Makefile.in.diff.

Matthias,

In Debian the patch gm2.diff is applied to the generated file
src/Makefile.in. Why not apply Makefile.in.diff too, to make gcc-12
build on GNU/Hurd until fixed upstream. Or maybe this is a Debian
problem?? See upstream bug
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104660

Thanks!

We believe that the bug you reported is fixed in the latest version of
gcc-12, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1005297@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Matthias Klose <doko@debian.org> (supplier of updated gcc-12 package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Sun, 17 Jul 2022 11:18:47 +0200
Source: gcc-12
Architecture: source
Version: 12.1.0-6
Distribution: unstable
Urgency: medium
Maintainer: Debian GCC Maintainers <debian-gcc@lists.debian.org>
Changed-By: Matthias Klose <doko@debian.org>
Closes: 1005297
Changes:
 gcc-12 (12.1.0-6) unstable; urgency=medium
 .
   * Update to git 20210717 from the gcc-12 branch.
     - Fix PR rtl-optimization/105041, PR tree-optimization/105860,
       PR target/105930 (x86), PR tree-optimization/106114,
       PR target/105991 (PPC), PR target/106122 (x86), PR c++/106102,
       PR target/103722 (SH), PR bootstrap/105551, PR target/106097,
       PR c++/105626, PR c++/106024, PR c++/105541, PR c++/105779,
       PR c++/106024, PR d/106139, PR fortran/104313, PR fortran/103137,
       PR fortran/103138, PR fortran/103693, PR fortran/105243,
       PR fortran/106121, PR fortran/105954, PR fortran/105691,
       PR fortran/105813.
   * Apply a hack to build libgo on the Hurd. Closes: #1005297.
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