micropython/micropython — pull request #843 by roger- (2014-09-02 02:19:51+00:00)
Title: unix: have Makefile detect MIPS and x64 options

If no ARCH variable is passed, then the Makefile will attempt to detect platform-specific options (MIPS and non-x86-64.

Seems to work for native and cross-compilation (ARCH must be passed for the latter).