On Fri, 25 Mar 2016 22:27:14 +0200 Alan McKinnon <[email protected]> wrote:
> The following REQUIRED_USE flag constraints are unsatisfied: > exactly-one-of ( python_single_target_python3_4 > python_single_target_python3_5 ) > > It says right there it needs PYTHON_SINGLE_TARGET > to be 1, and only 1, between 3.4 and 3.5. > You have it set as 2.7 per your emerge info. > The reason that all your other packages work and this one doesn't is > because so far that's the only one that has tripped over your > misconfigured USE. I also had PYTHON_SINGLE_TARGET set to 2.7 because the last time I checked (which could be over a year ago) something I had was requiring that. This thread prompted me to change it to 3.4 and try a --pretend update. I've got seven packages to re-build, without any errors, blockers, or other complaints from portage. I mention it because some of my fellow USE="-*" lunatics may want to give it a try and possibly preemptively avoid an eventual headache like the one that hit James.

