# CMAKE_<LANG>_BYTE_ORDER

New in version 3.20.

Byte order of `<LANG>` compiler target architecture, if known. If defined and not empty, the value is one of:

`BIG_ENDIAN`

  The target architecture is Big Endian.

`LITTLE_ENDIAN`

  The target architecture is Little Endian.

This is defined for languages `C`, `CXX`, `OBJC`, `OBJCXX`, and `CUDA`.

If `CMAKE_OSX_ARCHITECTURES` specifies multiple architectures, the value of `CMAKE_<LANG>_BYTE_ORDER` is non-empty only if all architectures share the same byte order.