llvm/libc/config/darwin/x86_64/headers.txt

set(TARGET_PUBLIC_HEADERS
    libc.include.ctype
    libc.include.errno
    # Fenv is currently disabled.
    #libc.include.fenv
    libc.include.float
    libc.include.stdint
    libc.include.inttypes
    libc.include.limits
    libc.include.math
    libc.include.stdlib
    libc.include.string
    libc.include.strings
)