message: macOS: follow relative symlinks for SDK path
diff: @@ -147,7 +147,13 @@ endif()
  set(ISPC_MACOS_ARM_TARGET OFF)
  if (ISPC_MACOS_TARGET AND ISPC_MACOS_SDK_PATH)
  if (IS_SYMLINK ${ISPC_MACOS_SDK_PATH})
  - file(READ_SYMLINK "${ISPC_MACOS_SDK_PATH}" ISPC_MACOS_SDK_PATH)
  + # Follow symlinks, relative and absolute.
  + file(READ_SYMLINK "${ISPC_MACOS_SDK_PATH}" ISPC_MACOS_SDK_PATH_NEW)
  + if (NOT IS_ABSOLUTE "${ISPC_MACOS_SDK_PATH_NEW}")
  + get_filename_component(ISPC_MACOS_SDK_PATH_DIR "${ISPC_MACOS_SDK_PATH}" DIRECTORY)
  + set(ISPC_MACOS_SDK_PATH_NEW "${ISPC_MACOS_SDK_PATH_DIR}/${ISPC_MACOS_SDK_PATH_NEW}")
  + endif()
  + set(ISPC_MACOS_SDK_PATH "${ISPC_MACOS_SDK_PATH_NEW}")
  endif()
  # Grepping path to figure out the version is not the most reliable way,
  