if(NOT EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${LIBC_TARGET_OS})
  return()
endif()

add_subdirectory(${LIBC_TARGET_OS})
set(target_os_util libc.src.__support.OSUtil.${LIBC_TARGET_OS}.${LIBC_TARGET_OS}_util)
if(NOT TARGET ${target_os_util})
  return()
endif()

# The OSUtil is an object library in GPU mode.
if(NOT LIBC_TARGET_ARCHITECTURE_IS_GPU)
  add_header_library(
    osutil
    HDRS
      io.h
      quick_exit.h
      syscall.h
    DEPENDS
      ${target_os_util}
  )
else()
  add_object_library(
    osutil
    ALIAS
      ${target_os_util}
    DEPENDS
      ${target_os_util}
  )
endif()