Don't use long chains of "if/else if" decisions in Rudix.mk
Don't use long chains of "if/else if" decisions in Rudix.mk

Affected logic decisions:

* RUDIX_UNIVERSAL
* ArchFlags
* Python / PythonSitePackages

Signed-off-by: Rudá Moura <3ceaf19413469ca7df9f6a96603874755ef36481@gmail.com>

rudix-mac/rudix,rudix-mac/rudix,rudix-mac/rudix