If the Xcode proj has both llama.cpp and mlx.swift. we will get duplicate symbol errors:

`
duplicate symbol '_gguf_get_key' in:
/Users/alex/Library/Developer/Xcode/DerivedData/xxxxx-eljaqnyrtudtxpgvajsemjrllabz/Build/Products/Debug-iphonesimulator/llama.o
/Users/alex/Library/Developer/Xcode/DerivedData/xxxxx-eljaqnyrtudtxpgvajsemjrllabz/Build/Products/Debug-iphonesimulator/Cmlx.o
ld: 1 duplicate symbols
clang: error: linker command failed with exit code 1 (use -v to see invocation)

`