| 18 Oct 2025 |
 dramforever | might | 12:58:29 |
 matthewcroughan | Yeah Nix depends on it because of dependency on Mercurial for the functional tets | 12:58:49 |
| matthewcroughan | * Yeah Nix depends on it because of dependency on Mercurial for the functional tests | 12:58:51 |
| dramforever | i don't have any concrete reason for why it's bad other than it looking crusty | 12:59:02 |
| matthewcroughan | but I believe it works fine without re2SUpport | 12:59:20 |
| matthewcroughan | * but I believe it works fine without re2Support | 12:59:24 |
| matthewcroughan | and it's optional | 12:59:26 |
| matthewcroughan | (mercurial that is) | 12:59:34 |
| matthewcroughan | https://github.com/NixOS/nixpkgs/blob/nixos-unstable/pkgs/by-name/me/mercurial/package.nix#L9 | 12:59:42 |
| dramforever | or maybe we could get a better fork of pyre2 | 13:00:25 |
| dramforever | why don't we just make mercurial use google-re2 | 13:08:31 |
| matthewcroughan | https://github.com/NixOS/nixpkgs/pull/451665 | 13:36:48 |
| matthewcroughan | Weird, this one still fails on Nix specifically | 13:36:55 |
| matthewcroughan | like Nix itself, fails to build, but the derivation alone is fine | 13:37:04 |
| matthewcroughan | 
Download image.png | 13:37:16 |
| matthewcroughan | like, is Nix itself overriding perl in some way to make this fail Alyssa Ross ? | 13:37:24 |
| matthewcroughan | The code in pkgs/tools/package-management/nix/common-meson.nix looks pretty hacky | 13:37:50 |
| matthewcroughan | Like it appears there are even two DBIs instantiated there in the graph | 13:38:13 |
| matthewcroughan | to get a pkgs.nixos {} to compile with musl I had to nix.enable = false is the context here | 13:40:25 |
| matthewcroughan | I'll make it simpler by just doing the native musl case where it fails too | 13:41:37 |
| matthewcroughan | Ah, in that case the following happens, so it fails differently
> check flags: SHELL=/nix/store/idi6v58lxi4qp6l41n7w6914ggpxnmqr-bash-5.3p3/bin/bash VERBOSE=y test
┃ > "/nix/store/aqnlwa4lky3sf8mrzzdvi0d8mmc3g3ni-perl-5.40.0/bin/perl" -MExtUtils::Command::MM -e 'cp_nonempty' -- DBI.bs blib/arch/auto/DBI/DBI.bs 644
┃ > PERL_DL_NONLAZY=1 "/bin/perl" "-MExtUtils::Command::MM" "-MTest::Harness" "-e" "undef *Test::Harness::Switches; test_harness(0, 'blib/lib', 'blib/arch')" t/*.t
┃ > /nix/store/idi6v58lxi4qp6l41n7w6914ggpxnmqr-bash-5.3p3/bin/bash: line 1: /bin/perl: No such file or directory
┃ > make: *** [Makefile:1435: test_dynamic] Error 127
┃ For full logs, run:
┃ nix log /nix/store/b6chj56gypfcy72xikpga7qqg841qarc-perl5.40.0-DBI-1.644.drv
| 13:42:00 |
| matthewcroughan | Alyssa Ross: That's great! I see your splicing fixed one thing but showed this error up | 13:48:37 |
| matthewcroughan | The above /bin/perl not found issue happens when I apply your patch https://github.com/NixOS/nixpkgs/pull/452642#discussion_r2437030777 | 13:48:53 |
| matthewcroughan | But is solved the headers/type issues like /nix/store/imi8qddc1zxz2s76m5xvmbyl945i1ppg-perl-5.40.0/lib/perl5/5.40.0/aarch64-linux-thread-multi/CORE/proto.h:10777:15: error: unknown type name 'off64_t'; did you mean 'off_t'? | 13:49:26 |
| matthewcroughan | * But it solves the headers/type issues like /nix/store/imi8qddc1zxz2s76m5xvmbyl945i1ppg-perl-5.40.0/lib/perl5/5.40.0/aarch64-linux-thread-multi/CORE/proto.h:10777:15: error: unknown type name 'off64_t'; did you mean 'off_t'? | 13:49:34 |
| matthewcroughan | Will put that in the PR for posterity | 13:50:01 |
 Alyssa Ross | Try nix-diff | 13:50:43 |
| matthewcroughan | - /nix/store/h19ly4ls25gwznag9i1xypif4a1a2sly-perl5.40.0-DBI-1.644-aarch64-unknown-linux-musl.drv:{out}
+ /nix/store/d24y94s4dv8x33b4r5q57vq9yzqwbc0z-perl5.40.0-DBI-1.644-aarch64-unknown-linux-musl.drv:{out}
• The set of input derivation names do not match:
- perl-5.40.0
• The environments do not match:
- AUTOMATED_TESTING=1
- PERL_AUTOINSTALL=--skipdeps
- PERL_USE_UNSAFE_INC=1
- fullperl=/nix/store/imi8qddc1zxz2s76m5xvmbyl945i1ppg-perl-5.40.0
+ NIX_CFLAGS_COMPILE= -Doff64_t=off_t
nativeBuildInputs=''
/nix/store/imi8qddc1zxz2s76m5xvmbyl945i1ppg-perl-5.40.0/nix/store/hm7smwqxxgvyja6rvfxnvf428k731gj9-perl-aarch64-unknown-linux-musl-5.40.
| 13:53:58 |
| matthewcroughan | Ah.. I was still applying my NIX_CFLAGS_COMPILE | 13:54:04 |
| matthewcroughan | But how exactly would that lead to perl not being found | 13:55:06 |
