app-portage/eix doesn't recognize key-value-pairs with whitespaces in config files, where portage does. Example of excepted key-value-pairs: ACCEPT_KEYWORDS="~x86" Example of ignored key-value-pairs: ACCEPT_KEYWORDS = "~x86" Example of config files: /etc/make.conf
This is a problematic change since practically the same code is used as for parsing shell-file syntax. I tried to improve the accepted syntax in both cases in eix git master on BerliOS (>=eix-0.25.6), hopefully not destroying some other corner cases this way...
eix-0.26.0 is in the tree