D lang support

[kassane]

Self-hosting compilers (need D compiler for bootstrap)

Based on Alpine packages, add:

• gcc-gdc and ldc2 (llvm-based) support (cross-compilers)
• dmd (currently i686/amd64 only - aarch64[wip]) - no cross-compilation

Aports:

• gcc-gdc
• ldc2

References

• mmap64 error kassane/alpine-ldc2-docker#2
• Add musl libc CI using Alpine Linux container on Ubuntu GHA ldc-developers/ldc#4650
• Add correct statvfs_t for Musl. dlang/dmd#16627
• musl CI: link LLVM statically (and everything else too) ldc-developers/ldc#4699
• LDC-src Build: does not build with libcxx-abi ldc-developers/ldc#4576

[nekopsykose]

gcc-gdc

this requires gcc so there's no point (and having multiple compilers is a bit not that useful)

ldc

this might be added eventually but there is no interest in adding it since no very useful software is written in D (there's like four useful niche projects total) so there's no priority. it also takes forever to update to newer llvm versions every llvm release..

unless you plan to figure out how to build a ldc-bootstrap that runs natively and then ldc with it i don't think this will be done anytime sooner than in a few years