Subject: configure fails when both guile 2.2 and 2.0 are installed

From: Tommi Höynälänmaa <[email-masked]>
Date: Sat, 8 Dec 2018 18:35:49 +0200

Script configure gives the following errors when both guile 2.2 and 2.0 
are installed:
---cut here---
checking for guile-2.0.14... no
checking for guile2.0.14... no
checking for guile-2.0... /usr/bin/guile-2.0
configure: error: found development files for Guile 2.2, but 
/usr/bin/guile-2.0 has effective version 2.0
---cut here---

I use guile versions 2.0.13 and 2.2.4 on Debian testing.

      - Tommi Höynälänmaa