What should the correct solution be for this instead of relying on glibcPkgs?

...
      netbsd = super.netbsd.overrideScope (
        _final: prev: {
          compat = prev.compat.overrideAttrs (old: { makeFlags = old.makeFlags ++ [ "OBJCOPY=${glibcPkgs.binutils}/bin/strip" ]; });
        }
      );
...

Anyone got any guesses as to why this might be happening then?

[16/19] Building C object CMakeFiles/zig2.dir/compiler_rt.c.o
[17/19] Building C object CMakeFiles/zig2.dir/zig2.c.o
[18/19] Linking CXX executable zig2
FAILED: [code=1] zig2 
: && /nix/store/zxfq7vsw55hhjnfm841k1x5x2fmsqmni-aarch64-unknown-linux-musl-clang-wrapper-21.1.1/bin/aarch64-unknown-linux-musl-clang++ -O3 -DNDEBUG -Wl,-z,stack-size=0x10000000 CMakeFiles/zig2.dir/zig2.c.o CMakeFiles/zig2.dir/compiler_rt.>
aarch64-unknown-linux-musl-ld: error: undefined symbol: llvm::sys::getProcessTriple()
>>> referenced by zig_llvm-ar.cpp
>>>               zig_llvm-ar.cpp.o:(llvm_ar_main(int, char**, llvm::ToolContext const&)) in archive zigcpp/libzigcpp.a
>>> referenced by Driver.cpp.o:(lld::wasm::(anonymous namespace)::LinkerDriver::linkerMain(llvm::ArrayRef<char const*>)) in archive /nix/store/j0m3sirlqygwaq6v4jhjdbardc503a5d-lld-aarch64-unknown-linux-musl-20.1.8-lib/lib/liblldWasm.a
>>> referenced by DriverUtils.cpp.o:(lld::elf::ELFOptTable::parse(lld::elf::Ctx&, llvm::ArrayRef<char const*>)) in archive /nix/store/j0m3sirlqygwaq6v4jhjdbardc503a5d-lld-aarch64-unknown-linux-musl-20.1.8-lib/lib/liblldELF.a
>>> referenced 5 more times

rg LLD | rg -i cmake
CMakeLists.txt:    set(MSVC_DIA_SDK_DIR "$ENV{VSINSTALLDIR}DIA SDK")
CMakeLists.txt:    ${LLD_INCLUDE_DIRS}
CMakeLists.txt:    ${LLD_LIBRARIES}
cmake/Findlld.cmake:# LLD_FOUND
cmake/Findlld.cmake:# LLD_INCLUDE_DIRS
cmake/Findlld.cmake:# LLD_LIBRARIES
cmake/Findlld.cmake:find_path(LLD_INCLUDE_DIRS NAMES lld/Common/Driver.h
cmake/Findlld.cmake:find_library(LLD_LIBRARY NAMES lld-19.0 lld190 lld NAMES_PER_DIR
cmake/Findlld.cmake:if(EXISTS ${LLD_LIBRARY})
cmake/Findlld.cmake:    set(LLD_LIBRARIES ${LLD_LIBRARY})
cmake/Findlld.cmake:    macro(FIND_AND_ADD_LLD_LIB _libname_)
cmake/Findlld.cmake:        find_library(LLD_${_prettylibname_}_LIB NAMES ${_libname_} NAMES_PER_DIR
cmake/Findlld.cmake:                ${LLD_LIBDIRS}
cmake/Findlld.cmake:        if(LLD_${_prettylibname_}_LIB)
cmake/Findlld.cmake:            set(LLD_LIBRARIES ${LLD_LIBRARIES} ${LLD_${_prettylibname_}_LIB})
cmake/Findlld.cmake:    endmacro(FIND_AND_ADD_LLD_LIB)
cmake/Findlld.cmake:    FIND_AND_ADD_LLD_LIB(lldMinGW)
cmake/Findlld.cmake:    FIND_AND_ADD_LLD_LIB(lldELF)
cmake/Findlld.cmake:    FIND_AND_ADD_LLD_LIB(lldCOFF)
cmake/Findlld.cmake:    FIND_AND_ADD_LLD_LIB(lldWasm)
cmake/Findlld.cmake:    FIND_AND_ADD_LLD_LIB(lldMachO)
cmake/Findlld.cmake:    FIND_AND_ADD_LLD_LIB(lldCommon)
cmake/Findlld.cmake:find_package_handle_standard_args(lld DEFAULT_MSG LLD_LIBRARIES LLD_INCLUDE_DIRS)
cmake/Findlld.cmake:mark_as_advanced(LLD_INCLUDE_DIRS LLD_LIBRARIES)
cmake/Findllvm.cmake:    # since on some distros LLD is only available as a static library

zig-aarch64-linux> -- Found lld: /nix/store/0hmg2vivmwb0fq93qannbbgmg7z4b99f-lld-aarch64-unknown-linux-musl-21.1.1-lib/lib/liblldMinGW.a;/nix/store/0hmg2vivmwb0fq93qannbbgmg7z4b99f-lld-aarch64-unknown-linux-musl-21.1.1-lib/lib/liblldELF.a;/nix/store/0hmg2vivmwb0fq93qannbbgmg7z4b99f-lld-aarch64-unknown-linux-musl-21.1.1-lib/lib/liblldCOFF.a;/nix/store/0hmg2vivmwb0fq93qannbbgmg7z4b99f-lld-aarch64-unknown-linux-musl-21.1.1-lib/lib/liblldWasm.a;/nix/store/0hmg2vivmwb0fq93qannbbgmg7z4b99f-lld-aarch64-unknown-linux-musl-21.1.1-lib/lib/liblldMachO.a;/nix/store/0hmg2vivmwb0fq93qannbbgmg7z4b99f-lld-aarch64-unknown-linux-musl-21.1.1-lib/lib/liblldCommon.a (Required is at least version "21")

In reply to @dramforever:matrix.org
check out https://github.com/NixOS/nixpkgs/pull/438621 but honestly idk how to fix it further