Ryan Houdek 7ef3cb88f9 CMake: Allow overriding linker ...

While the ENABLE_LLD and ENABLE_MOLD options are nice, they don't handle
the case when the linker of `lld` or `mold` doesn't match the compiler.

This particularly crops up when overriding the C compiler to a new
version of clang but the globally installed `ld.lld` is still the old
clang version.
This then causes clang to fail with unusual errors when upstream breaks
compatibility with itself.

Easy enough to use by passing the linker to cmake:
`-DUSE_LINKER=/usr/bin/ld.lld-15`

This also removes the ENABLE_LLD and ENABLE_MOLD options to use
USE_LINKER directly.
- ldd: `-DUSE_LINKER=lld`
- mold: `-DUSE_LINKER=mold`

Example of compiler failure when built with clang-15 but attempting to
link with ld.lld 14:
```bash
ld.lld-14: error: unittests/APITests/CMakeFiles/Filesystem.dir/Filesystem.cpp.o: Opaque pointers are only supported in -opaque-pointers mode (Producer: 'LLVM15.0.7' Reader: 'LLVM 14.0.6')
```

2023-08-04 02:34:15 -07:00

..

ISSUE_TEMPLATE

Adds Game bug issue template

2021-12-25 12:29:59 -08:00

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CMake: Allow overriding linker

2023-08-04 02:34:15 -07:00