There was no documentation for the "config" option, and it wasn't quite
clear whether it was supposed to be a file, a string, or what. This
commit removes that ambiguity.
- Perl is used at build time, so must be in `nativeBuildInputs`. It's
not used at run time so it should not be in `buildInputs`, too.
- Don't treat headers like a compiler---use the build and host
platforms not host and target. Perhaps that would make sense if every
library's headers could be a separate derivation, but since that is
not feasible, best to keep the implementation and interface in the
same stage.
To do this, we used `stdenvNoCC` to get rid of the normal toolchain,
and added a dependency for the toolchain targeting the build platform
--- `buildPackages.stdenv.cc` --- thus everything is effectively slid
a stage black.
- Don't build with libsigsegv by default. The build apparently attempted
to link against it, but it never retained the reference anyway...
- Side effect: stdenv bootstrapping needs no libsigsegv anymore.
- Run checks, but only in the interactive gawk by default on Linux,
so that stdenv bootstrap isn't slowed down (by glibc locales, etc.).
- xz should be no longer needed in inputs, as we have it in stdenvs now.
The whole change was triggered by some used kernel versions still
breaking libsigsegv tests #28464.
- Now simply let the default `unpackPhase` unzip the vsix file. This
should allow users to retrieve the extension directly from github.
- Extensions now installed using their unique id as install folder.
- Extensions under `vscode-extensions` now use the unique id
as extension name.
The installer tests are failing after 505e94256e
due to `nixos-rebuild switch` in the installed system trying to build
stdenvNoCC.
Seems that previously, stdenvNoCC wasn't in the installed
system either, but all the direct dependencies for the build were
(I don't really understand why, for that matter), so the building
actually went fine and everything worked.
But now gcc is also a direct build dependency due to allowedRequisites
containing gcc (even though it doesn't become a runtime dependency)
which doesn't get to the installed system.
All in all, let's ensure stdenvNoCC actually gets to the installed
system. It's after all necessary in almost any NixOS config build.
