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NixOS Reproducible Builds

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25 May 2021
@baloo_:matrix.orgbalooI haven't tried23:58:33
@andi:kack.itandi- * (might be harder for us to test unless we rent some machines temporary)23:58:38
@baloo_:matrix.orgbalooyeah I can rent two machines I guess23:58:46
@andi:kack.itandi- That might be something grahamc (he/him) could probably help with. Packet boxes might be really nice for this. 23:59:15
@baloo_:matrix.orgbalooyeah :D23:59:31
26 May 2021
@baloo_:matrix.orgbaloothe resource is need is time though 00:00:07
@baloo_:matrix.orgbalooI need*00:00:11
@baloo_:matrix.orgbalooI have access to packet servers from work00:00:43
@andi:kack.itandi-Well perhaps make a multi-multi-multi output derivation first that spits out all the phases and then we can think about running it on different machines00:00:46
@andi:kack.itandi-or simply copy the build root into an output at the end00:01:16
@baloo_:matrix.orgbalooadditional challenge: because the intermediate stages are large, gcc optimizes it and rewrites them 00:01:31
@baloo_:matrix.orgbalooso you need to step manually, snapshot it, 00:01:44
@baloo_:matrix.orgbaloowhich is ... and extra hurdle00:01:51
@andi:kack.itandi-Well perhaps a patch to the Makefiles then?00:02:07
@andi:kack.itandi-Before each stage copy them to $debug/$stage00:02:16
@baloo_:matrix.orgbaloo:D00:02:15
@baloo_:matrix.orgbalooNOPE00:02:21
@baloo_:matrix.orgbaloonot a solution either, not touching those makefiles00:02:32
@andi:kack.itandi-perhaps just use clang :P00:02:41
@baloo_:matrix.orgbaloohttps://github.com/gcc-mirror/gcc/blob/master/Makefile.in00:03:01
@baloo_:matrix.orgbaloo:D00:03:02
@baloo_:matrix.orgbaloo like ... there is a lot of makefile 00:03:11
@andi:kack.itandi-I touched them when I was working on my own nix based package set.. You can do that... it just isn't pretty00:03:23
@andi:kack.itandi- baloo: > # Makefile.in is generated from Makefile.tpl by 'autogen Makefile.def'. 00:04:10
@andi:kack.itandi-So perhaps it is even easier00:04:19
@baloo_:matrix.orgbalooho00:04:20
@baloo_:matrix.orgbalooyeah, could be a bit easier00:04:28
@baloo_:matrix.orgbaloobut it's still a beast00:04:35
@baloo_:matrix.orgbalooI'll do it eventually, I want to00:05:26
@andi:kack.itandi-https://github.com/gcc-mirror/gcc/blob/master/Makefile.tpl#L1184-L120800:05:47

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