This fixes a CI warning [0]:
Run cat "$HOME/changed_files" | xargs -r editorconfig-checker -disable-indent-size
pkgs/development/compilers/llvm/14/lld/default.nix:
28: Wrong indent style found (tabs instead of spaces)
29: Wrong indent style found (tabs instead of spaces)
30: Wrong indent style found (tabs instead of spaces)
[0]: https://github.com/NixOS/nixpkgs/runs/5351700772
Enable parallel building for ocaml-4.08 and above. tested as:
$ nix build -f. ocaml-ng.ocamlPackages_{4_{00_1,01_0,02,03,04,05,06,07,08,09,10,11,12,13},latest}.ocaml --keep-going
ocaml build system supports parallel building, but but for multiple
top-level targets at the same time as it usually spawns subprocess
$(MAKE) that occasionally conflict with one another. To work it around
we use tiny Makefile with a single rule that calls top-level targets
sequentially as makefile calls:
nixpkgs_world_bootstrap_world_opt:
$(MAKE) world
$(MAKE) bootstrap
$(MAKE) world.opt
On a 16-core machine ocaml-4.12 build speeds up from 6m55s to 1m35s.
Releases 4_00_1, 4_01_0, 4_04 and 4_05 still have some race in them.
Thus this change enables parallel builds only for ocaml-4.06 and above.
Adapted from #142723
upstreams's CI tests the parallel makefile: https://github.com/ocaml/ocaml/issues/10235#issuecomment-782100584
The limit was chosen to be 4.08 because it was released in 2019, not too
long before the above link.
This should fix a few broken cc-wrapper tests that also check for
libasan[1][2][3]:
[...]
checking whether sanitizers are fully functional... ==243==ERROR: AddressSanitizer failed to allocate 0x0 (0) bytes of SetAlternateSignalStack (error code: 22)
[...]
The underlying issue is that `SIGSTKSZ` isn't a compile-time constant
anymore, but in this case the uninitialized `kAltStackSize` was
initialized early enough to evalute to `0`[4].
The issue is already fixed in gcc11 and there's GCC 8.5 which also
contains the patch, however the backports to v9 and v10 aren't released
yet, so we have to apply patches on our own here.
For GCC 7.5 I applied the patch from gcc8 as it doesn't seem as if
there's an official upstream backport.
[1] https://hydra.nixos.org/build/163102264
[2] https://hydra.nixos.org/build/163624687
[3] https://hydra.nixos.org/build/163619227
[4] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100114
