On Sat, 2012-03-17 at 15:33 -0400, Matt Turner wrote: > So you run set FEATURES=test to run a package's test suite during > keywording. Later, you emerge -vuNDa ... and portage wants to reemerge > that package with USE=-test. > > Can't we avoid this somehow? I presume in the vast majority of cases > emerging with FEATURES/USE=test doesn't actually affect what's > installed. > > I'd guess we'd need to be able to remove 'test' from the set of IUSE > and have a new helper function to check if 'test' is in FEATURES?
Typically "test" is added to IUSE only when building and/or running the test suite requires specifying additional dependencies. So if we remove "test" from IUSE, we would need to allow DEPEND to have FEATURES-based conditionals. Which would probably mean a new EAPI. I think the easier solution is to modify portage to ignore changes in the "test" USE flag when doing "emerge --newuse". -Alexandre.
