document libedit as build dependency (by llvm) or remove it or/and how it can be disabled (with consequences)

[matu3ba]

See in LLVM repo ./cmake/Modules/FindLibEdit.cmake for why its a build dependency.

Can be disabled with -DLLVM_ENABLE_LIBEDIT=off, but I am unsure if there are bad implications for the intended use cases.

[andrewrk]

it should be disabled

[kassane]

Solution:

• https://github.com/llvm/llvm-project/issues/57573#issuecomment-1238033268

[LinuxUserGD]

See https://github.com/ziglang/zig-bootstrap/blob/a836b63c1ae8e734a0f94cc4031610adfb4bedf7/build#L150

[matu3ba]

@LinuxUserGD True, but its not disabled on the first LLVM build.