(Hmm, maybe this patch was not seen because it's so far down in the thread 
"Stuck on KiCad dependency wxPython". So I'm resending it to the top.)

While there was already a #:configure-flags for the "install" target,
it was not used when building. Use it.

* guix/build/python-build-system.scm (build): Modified.
---
 guix/build/python-build-system.scm | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)