--- Log opened Wed Dec 22 00:00:08 2021
00:24 < jarolrod> fanquake: i have a question about 23778. Is it possible that performing a guix build on that branch can have consequences when moving to another pre-update branch?
00:24 < jarolrod> ^ #23778
00:24 < gribble> https://github.com/bitcoin/bitcoin/issues/23778 | release: Guix 1.4.0 & GCC 10.3 by fanquake · Pull Request #23778 · bitcoin/bitcoin · GitHub
00:25 < hebasto> yes it is
00:25 < hebasto> I found a bug, and working on a pr
00:27 < hebasto> to be precise, a founded bug is about a possible non-determinism when sharing depends between consequential guix builds
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07:45 < hebasto> ^ not actually a bug. Since Qt 5.13 rcc reads `SOURCE_DATE_EPOCH`. Therefore, each build must have a fresh qt package. The easiest way is to `make -C depends clean`. Not sure if a PR that will force to rebuild qt unconditionally is worth.
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15:22 < fanquake> I don’t think that’s correct. I never make clean prior to Guix building. If we had to rebuild qt prior to every build something is broken
15:23 < fanquake> It’s not clear to my why so many people keep posting mismatching hashes recently.
16:17 < fanquake> Also we set SOURCE_DATE_EPOCH deterministically.
--- Log closed Thu Dec 23 00:00:09 2021