If I use "-i USE" with eselect-126.96.36.199_beta4, I get a lot of no such file or directory errors. My /etc/portage/make.profile only contains a parent file. The /etc/portage/make.profile and its content is created with "eselect profile add XX".
Created attachment 315457 [details]
It's the only content inside of make.profile
Created attachment 315463 [details]
output of euse -i gtk
No existe el fichero o el directorio -> No such file or directory. Moreover, euse command hangs and never ends.
That's because of bug 414961 where support to add ':' as shorthand for the parent directory was added. As noted in that enhancement request, that feature breaks euse.
As of right now, euse has not been updated for that feature enhancement to work correctly.
Created attachment 315867 [details, diff]
The following patch should fix euse to support the colon characters in the parent files. Please test.