Provide a version of nixpkgs which is built using the LLVM toolchain.
This is achieved by reusing the useLLVM attribute usable in the cross
toolchain bootstrapping which is a) perfectly acceptable and b) the only
way to bootstrap a LLVM stdenv across platforms without unreasonable
amounts of work.
This is mostly working now since we fixed some issues with
llvmPackages_7.lldClang in #119717 and compile glibc with gcc at all
times as of #119786 (since clang can't compile our glibc at the moment).
There are seemingly some issues left to be ironed out, for example the
C++ library of ncurses fails to build with a linking issue. I have
attempted to alleviate that problem with #120790, but to no avail so
far.
Nonetheless, having a working pkgsLLVM.hello is a good start.
A currently present issue is that there is no way to change the libc
since there is some issue with lldClang actually picking up on the set
libc. This will need investigation and fixing.
In 7869d1654517c028aa76fc1dedc9b5ac301a867a I got rid of the symlinking
by forcing `COMPILER_RT_OS_DIR` to always be the empty string. I thought
this was good because it just make compiler-rt be installed in a normal
way.
However, various LLVM tools expect the `COMPILER_RT_OS_DIR` to be set
normally, and fail to find things when they aren't in the expected lib
subdir.
Maybe it would be best to patch that too in the long term, but for now
we just undo this change.
Notes:
- compat: Needs a header from common merged with it's wrapper.
- librt: Needs the jemalloc sources.
- libc: install libc_pic.a
This was the behaviour on NetBSD 8.0, and ld.elf_so (in its current
configuration) requires it. We could also have disabled PIC in
ld.elf_so.
- sys: fix build
We use a more recent version of binutils than NetBSD 9.1 does, so we
need to backport a patch from CURRENT.
Co-authored-by: John Ericson <John.Ericson@Obsidian.Systems>
nimbo: make python3 version agnostic
nimbo: run nixfmt
nimbo: move out of python-modules and package as application
nimbo: switch to buildPythonApplication from buildPythonPackage
Update pkgs/applications/misc/nimbo/default.nix
Co-authored-by: Sandro <sandro.jaeckel@gmail.com>
