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Pin modification time for python files to SOURCE_DATE_EPOCH

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Patching the pretty printer files leads to different mtimes for
different, which then leads to different results in the compiled python
bytecode since it uses mtimes for invalidation.  Use
`$SOURCE_DATE_EPOCH` as the mtime for the pretty printers so that they
end up with identical bytecode results.

This allows libstdc++.x86_64 to be installed alongside libstdc++.i686.

Resolves: RHEL-100148
Related: RHEL-81975
This commit is contained in:
Siddhesh Poyarekar 2025-03-21 14:57:13 -04:00 committed by Siddhesh Poyarekar
parent 6ee19f4557
commit f98f195183
1 changed files with 7 additions and 3 deletions
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10
gcc.spec
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@ -1,10 +1,11 @@
%global source_date_epoch_from_changelog 1
%global DATE 20240719
%global gitrev a985e3068a6f8045f8a6f2d2d5ae75f5eb0a8767
%global gcc_version 11.5.0
%global gcc_major 11
# Note, gcc_release must be integer, if you want to add suffixes to
# %%{release}, append them after %%{gcc_release} on Release: line.
%global gcc_release 8
%global gcc_release 9
%global nvptx_tools_gitrev 5f6f343a302d620b0868edab376c00b15741e39e
%global newlib_cygwin_gitrev 50e2a63b04bdd018484605fbb954fd1bd5147fa0
%global _unpackaged_files_terminate_build 0
@ -1831,9 +1832,9 @@ mv -f %{buildroot}%{_prefix}/%{_lib}/libstdc++*gdb.py* \
%{buildroot}%{_datadir}/gdb/auto-load/%{_prefix}/%{_lib}/
pushd ../libstdc++-v3/python
for i in `find . -name \*.py`; do
touch -r $i %{buildroot}%{_prefix}/share/gcc-%{gcc_major}/python/$i
touch -d @$SOURCE_DATE_EPOCH %{buildroot}%{_prefix}/share/gcc-%{gcc_major}/python/$i
done
touch -r hook.in %{buildroot}%{_datadir}/gdb/auto-load/%{_prefix}/%{_lib}/libstdc++*gdb.py
touch -d @$SOURCE_DATE_EPOCH %{buildroot}%{_datadir}/gdb/auto-load/%{_prefix}/%{_lib}/libstdc++*gdb.py
popd
for f in `find %{buildroot}%{_prefix}/share/gcc-%{gcc_major}/python/ \
%{buildroot}%{_datadir}/gdb/auto-load/%{_prefix}/%{_lib}/ -name \*.py`; do
@ -3612,6 +3613,9 @@ end
%endif
%changelog
* Fri Jun 27 2025 Siddhesh Poyarekar <siddhesh@redhat.com> 11.5.0-9
- Pin modification time for python files to SOURCE_DATE_EPOCH (RHEL-100148).
* Mon Jun 23 2025 Siddhesh Poyarekar <siddhesh@redhat.com> - 11.5.0-8
- Sync libstdc++ pretty printers to latest GTS (RHEL-81975)