This reverts commit 7c73d1e025.
commit 8c80bd08b7
("build-support/cc-wrapper: pass in non-existent --sysroot= to untangle
from libc") was reverted. We can drop the workaround.
After https://github.com/NixOS/nixpkgs/pull/210004 `dmd` started failing
build as:
ld: warning: libm.so.6, needed by ./generated/linux/release/64/lib.so, not found (try using -rpath or -rpath-link)
ld: /build/druntime/generated/linux/release/64/libdruntime.so: undefined reference to `log10@GLIBC_2.2.5'
This happens because --sysroot=/nix/store/does/not/exist removes not
just include headers by prefixing wrong path, but also removes RUNPATH
dependencies of linked libraries. It's an unintended effect.
Restore the build by reversing the effect with --sysroot=/.
checkInputs used to be added to nativeBuildInputs. Now we have
nativeCheckInputs to do that instead. Doing this treewide change allows
to keep hashes identical to before the introduction of
nativeCheckInputs.
