Hello, Josselin Poiret via Bug reports for GNU Guix <[email protected]> writes:
> Nicolas Goaziou <[email protected]> writes: > >> I went a bit further: >> >> The issue is not specifically glib-related, but can be reproduced with >> any package using the following: >> >> (search-path-specification >> (variable "XDG_DATA_DIRS") >> ...) [...] > The XDG specification says that if XDG_DATA_DIRS is unset, a default > value of `/usr/local/share/:/usr/share/` should be used in its place. > On Debian, that env var is not explicitely set, so applications use that > default value, but when we prepend to it, it effectively removes both of > these directories from the search path. > > As a workaround, you can do `export > XDG_DATA_DIRS=/usr/local/share/:/usr/share/` right before sourcing the > guix profile in your .bash_profile. You're right. The above fixes the issue with fontconfig. Unfortunately, the problem persists with the minimal manifest: (specifications->manifest '("python-matplotlib")) So there's something else going on. In order to fix the above, I need to put unset GI_TYPELIB_PATH in my .profile, after having sourced Guix profile. Maybe this environment variable also has a special default value when unset. > I don't know what the best course > of action here is to have better OOB support. Is it possible to have > env vars set by Guix have a default value if unset? I think it is desirable, in particular for fontconfig, which is a recommended package in the manual. The part of Guix responsible for generating the profile file may be more careful when setting XDG_DATA_DIRS, e.g., with something like (untested): export XDG_DATA_DIRS=\ "${GUIX_PROFILE:-/gnu/store/…-profile}/share${XDG_DATA_DIRS:+:}${XDG_DATA_DIRS:-/usr/local/share/:/usr/share/}" Regards, -- Nicolas Goaziou
