configure doesn't find guile

gEDA/gaf currently requires Guile 2.0 in order to run (bug #1782306).

I suspect it may actually run fine with Guile 2.2, but I haven't yet got around to testing it. If you want to, you could change all occurrences of "guile-2.0" in `m4/geda-guile.m4` and `xorn/configure.ac` to "guile-2.2" and see whether all works as expected.

If you do, I'd be interested to hear about your results.

Well, changing occurrences of "guile-2.0" to "guile-2.2" got the configure script to complete successfully. But when "make" is run, an error with the following message appears on my system (btw aclocal-1.15 is installed):

/disk2/geda-gaf-1.8.2/build-tools/missing: line 81: aclocal-1.13: command not found
WARNING: 'aclocal-1.13' is missing on your system.
         You should only need it if you modified 'acinclude.m4' or
         'configure.ac' or m4 files included by 'configure.ac'.
         The 'aclocal' program is part of the GNU Automake package:
         <http://www.gnu.org/software/automake>
         It also requires GNU Autoconf, GNU m4 and Perl in order to run:
         <http://www.gnu.org/software/autoconf>
         <http://www.gnu.org/software/m4/>
         <http://www.perl.org/>
Makefile:511: recipe for target 'aclocal.m4' failed
make: *** [aclocal.m4] Error 127

I wish I knew the build system better! Thank you for any help. It is deeply appreciated.

Are you compiling from a release tarball? If so, please use the current development sources available from:

  git://git.geda-project.org/geda-gaf.git

Here's the list of commands you'd typically use to build gEDA/gaf from the development sources. It's written assuming you are using Debian; if you are using another system, replace the "apt-get" invocations with your own package management tool:

  sudo apt-get update
  sudo apt-get build-dep geda
  git clone git://git.geda-project.org/geda-gaf.git
  cd geda-gaf
  ./autogen.sh
  ./configure --prefix=$HOME/geda
  make
  make install

Thank you Roland. I was using a source tarball, but using the git project and the commands above got it all nicely built. BTW, using xubuntu 18.04 on a Dell XPS13-9360.