https://wiki.debian.org/Multiarch/Tuples

clang appears to be missing target triples for alpha-linux-gnu, arc-linux-gnu, hppa-linux-gnu, and sh4, among others. Perhaps we can copy the g++ based, sans clang method of the mingw images for these targets.

Frankly, the list is so long that we may want to replace most references from clang to gcc when porting applications.