Bug#1036367: gcc-13: reproducible builds: build date and timestamps embedded in documentation

[Vagrant Cascadian]

Source: gcc-13
Version: 13.1.0-2
Severity: normal
Tags: patch
User: reproducible-builds at lists.alioth.debian.org
Usertags: timestamps
X-Debbugs-Cc: reproducible-bugs at lists.alioth.debian.org

The build dates and timestamps are embedded in various files shipped in
documentation.

The attached patches fix this by adding SOURCE_DATE_EPOCH support to the
doxygen scripts used to generate the libstdc++ documentation, and by
adjusting debian/rules2 to remove the leftover _formulas.log files from
the generated package.

According to my local tests, applying these patches should allow gcc-13
to build reproducibly with stable build paths and
DEB_BUILD_OPTIONS="nocheck nolto nopgo".


Thanks for maintaining gcc-13!


live well,
  vagrant
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