Trouble building lib/liblldb.so.17.0.0 on 6.0.1 using manually built 5.10.1

[vaikas (Ville Aikas)]

@itaiferber

@itaiferber

[preset: gentoo]
mixin-preset=buildbot_linux,no_assertions,no_test
build-ninja=0
extra-cmake-options=
       -DLLVM_USE_LINKER=lld
       -DBUILD_TESTING:BOOL=NO
       -DSWIFT_INCLUDE_TESTS:BOOL=NO
       -DSWIFT_INCLUDE_TEST_BINARIES:BOOL=NO
       -DCOMPILER_RT_BUILD_ORC:BOOL=NO
       -DPython3_FIND_UNVERSIONED_NAMES=FIRST
libicu=0
llvm-targets-to-build=host
skip-build-curl
skip-build-zlib

I tried with both ld.gold and lld and they are now both getting this error:

CMake Error at /home/build/swift-project/build/buildbot_linux/llvm-linux-aarch64/lib/cmake/llvm/HandleLLVMOptions.cmake:330 (message):
  Host compiler does not support '-fuse-ld=lld'

And:

CMake Error at cmake/modules/HandleLLVMOptions.cmake:330 (message):
  Host compiler does not support '-fuse-ld=ld.gold'
Call Stack (most recent call first):
  CMakeLists.txt:918 (include)

I tried with the short modification you sent, as well as the full gentoo section one you had also provided.