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Nix expressions for building D compilers

Nix 70.01% D 25.25% Shell 4.74%

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dlang-nix's Issues

Merging this repo with oldDderivations?

I believe, from reading Dlang foundation monthly meeting summary 2022-Nov, that this project has a common goal with me and my project.

I suggest we combine our efforts. I'm happy to give you maintainer rights to OldDDerivations, or alternatively to commit what I've done there to here instead. I haven't familiarised myself with Nix flakes yet, but I'm happy to learn and start using them. What do you think?

Instructions needed.

There should be an instruction file for the user to build the derivations here. It should specify both how to simply build an already fetched version of a single package (copying what readme.md in OldDDerivations says probably does pretty good job) and how to run the prefetcher scripts to generate the version-specific hash files (once #9 is in).

dmd 2.102.2 doesn't compile on macos

See: https://github.com/PetarKirov/dlang-nix/actions/runs/6291202903/job/17079346714

During the checkPhase of dmd, the following two test cases fail to link on macOS:

dmd>  ... runnable/objc_class.d          -L-framework -LFoundation  -fPIC (-inline -release -g -O)
dmd> ==============================
dmd> Test 'runnable/objc_class.d' failed. The logged output:
dmd> clang -m64 -c runnable/extra-files/objc_class.m -o test_results/runnable/objc_class.m.o
dmd> /private/tmp/nix-build-dmd-2.102.2.drv-0/dmd/generated/osx/release/64/dmd -conf= -m64 -Irunnable -L-framework -LFoundation  -fPIC  -odtest_results/runnable -oftest_results/runnable/objc_class_0  runnable/objc_class.d test_results/runnable/objc_class.m.o
dmd> Undefined symbols for architecture x86_64:
dmd>   "_objc_alloc_init", referenced from:
dmd>       _callFooInstanceMethod in objc_class.m.o
dmd> ld: symbol(s) not found for architecture x86_64
dmd> clang-11: error: linker command failed with exit code 1 (use -v to see invocation)
dmd> Error: linker exited with status 1
dmd> ==============================
dmd> Test 'runnable/objc_class.d' failed: Expected rc == 0, but exited with rc == 1
dmd> >>> TARGET FAILED: runnable/objc_class.d

dmd>  ... runnable/objc_self_test.d      -L-framework -LFoundation  -fPIC (-inline -release -g -O)
dmd> ==============================
dmd> Test 'runnable/objc_self_test.d' failed. The logged output:
dmd> clang -m64 -c runnable/extra-files/objc_self_test.m -o test_results/runnable/objc_self_test.m.o
dmd> /private/tmp/nix-build-dmd-2.102.2.drv-0/dmd/generated/osx/release/64/dmd -conf= -m64 -Irunnable -L-framework -LFoundation  -fPIC  -odtest_results/runnable -oftest_results/runnable/objc_self_test_0  runnable/objc_self_test.d test_results/runnable/objc_self_test.m.o
dmd> Undefined symbols for architecture x86_64:
dmd>   "_objc_alloc_init", referenced from:
dmd>       _getValue in objc_self_test.m.o
dmd> ld: symbol(s) not found for architecture x86_64
dmd> clang-11: error: linker command failed with exit code 1 (use -v to see invocation)
dmd> Error: linker exited with status 1
dmd> ==============================
dmd> Test 'runnable/objc_self_test.d' failed: Expected rc == 0, but exited with rc == 1
dmd> >>> TARGET FAILED: runnable/objc_self_test.d

Building DMD with LDC

It is claimed that DMD, despite being a fast compiler already, is even faster when compiled with LDC. We would do well to take advantage of this, especially since it will presumably make running the tests faster.

Resynchronise `pkgs/dmd` with Nixpkgs dmd.

An year ago or so, the generic.nix and binary.nix in OldDDerivations were basically the same as in Nixpkgs. It was easy to upstream and downstream any improvements, Nixpkgs only lacking the version-specific hash files.

If possible, I would like to reintroduce this synergy. Obviously this does depend on reaching agreement with other Nixpkgs maintainers (I'm one of the dmd maintainers there though so I should have some power). However, I think we should first get DMD versions from 2.084.1 (oldest in OldDDerivations) to the latest stable working first, otherwise people in Nixpkgs don't have much reason to accept any changes from here.

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