<mark_weaver>gzg: if you've done 'guix pull' at some point, that would override whatever was last "make install"d.
<mark_weaver>./pre-inst-env avoids looking at whatever was last 'guix pull'd.
<mark_weaver>(the 'guix pull' stuff is in ~/.config/guix/latest/, so you might want to just blow away that directory)
<mark_weaver>(well, if XDG_CONFIG_HOME is set, then it'll be in $XDG_CONFIG_HOME/guix/latest)
<gzg>mark_weaver: I know that, I'm saying I have a recent build actually installed on my system (as in less than a week ago) and it didn't find it. :^P
<mark_weaver>gzg: I'm saying that when you use guix without ./pre-inst-env, it's always going to use what's in ~/.config/guix/latest/ if it exists, and ignore anything else you've installed since then.
<mark_weaver>"guix pull" is what populates ~/.config/guix/latest/
<mark_weaver>ah right, and now I remember why I didn't simply update the URL for pysqlite before: the hash has changed even though the filename is the same. I wanted to find a copy of the older file to see what changed.