tree a22a67f4708889adc21d31eaa9d881438057fd2a
parent 2690f730961e335875cac5fd9cf870a94eaef11a
author Michael Brown <mcb30@ipxe.org> 1626353194 +0100
committer Michael Brown <mcb30@ipxe.org> 1626354977 +0100

[libc] Allow for externally-defined LITTLE_ENDIAN and BIG_ENDIAN constants

When building the Linux userspace binaries, the external system
headers may have already defined values for the __LITTLE_ENDIAN and
__BIG_ENDIAN constants.

Fix by retaining the existing values if already defined, since the
actual values of these constants do not matter.

Signed-off-by: Michael Brown <mcb30@ipxe.org>