aclocal.m4: Support GUILE_CONFIG, document GUILE_FLAVOR
While this is rather rudimentary support and does not obviate the need
to fix INSTALL.txt, it should give enough of a clue to people using
./configure --help to get things going. Also settings of GUILE_FLAVOR
and GUILE_CONFIG from the environment are preserved for the sake of
./config.status --recheck .
Diff:
Passes make, make check and a full make doc.
Passes make, make check and a full make doc.
Patch on countdown for March 25th.
Patch counted down - please push