r23507 - gnucash/branches/2.4 - Make gnucash 2.4 buildable on a system that has both guile 1.x and guile 2

[Geert Janssens]

Author: gjanssens
Date: 2013-12-07 11:09:33 -0500 (Sat, 07 Dec 2013)
New Revision: 23507
Trac: http://svn.gnucash.org/trac/changeset/23507

Modified:
   gnucash/branches/2.4/configure.ac
   gnucash/branches/2.4/macros/gnome-guile-checks.m4
Log:
Make gnucash 2.4 buildable on a system that has both guile 1.x and guile 2

- 2.4.x won't run with guile 2, so bail out when that version is found
- allow the user to manually override the guile version to use by
  setting environment variables GUILE and GUILE_CONFIG