llvm-project/libc/include/CMakeLists.txt

add_header(
  llvm_libc_common_h
  HDR
    __llvm-libc-common.h
)

add_header(
  ctype_h
  HDR
   ctype.h
  DEPENDS
    llvm_libc_common_h
)

add_header(
  math_h
  HDR
    math.h
  DEPENDS
    llvm_libc_common_h
)

add_gen_header(
  string_h
  DEF_FILE string.h.def
  GEN_HDR string.h
  DEPENDS
    llvm_libc_common_h
)

add_gen_header(
  errno_h
  DEF_FILE errno.h.def
  PARAMS
    platform_errno=../config/${LIBC_TARGET_OS}/errno.h.in
  GEN_HDR errno.h
  DATA_FILES
    ../config/${LIBC_TARGET_OS}/errno.h.in
)