Begin autotools sanitization sequence by requiring ports to explicitly
specify which version of {libtool,autoconf,automake} they need, erasing
the concept of a "system default".
For ports-in-waiting:
USE_LIBTOOL=YES -> USE_LIBTOOL_VER=13
USE_AUTOCONF=YES -> USE_AUTOCONF_VER=213
USE_AUTOMAKE=YES -> USE_AUTOMAKE_VER=14
Ports attempting to use the old style system after June 1st 2004 will be
sorely disappointed.
GLE is a library of C functions that draw extruded surfaces, including surfaces
of revolution, sweeps, tubes, polycones, polycylinders and helicoids. GLE uses
the OpenGL(R) API to perform the actual rendering.
PR: 20931
Submitted by: David Gilbert <dgilbert@velocet.ca>