I can see how that might theoretically be a problem, but in all honesty, the set of USE flags for a
particular package doesn't have that much crazy variation.
In general, the USE flags tend to correspond to features that can be added or removed via
arguments to ./configure, so the number of variants for any particular package is no larger using
Gentoo than it would be using source-compiled packages that you did the ./configure; make;
make install dance on yourself.
Setting weird compiler optimization flags in the global make.conf, now, there I can see a source
of issues. Of course, so could the Gentoo developers, which is why the docs say not to do that.
Copyright © 2017, Eklektix, Inc.
Comments and public postings are copyrighted by their creators.
Linux is a registered trademark of Linus Torvalds