Added FREEGLUT_REPLACE_GLUT configure option for MS Windows.
It provides back compatibility with older (autotools based) freeglut versions.
Also it simplifies build rules for crossplatform programs: they may be linked
with -lglut regardless of the system and library type (shared/static).
Patch is originally prepared for MXE project (http://mxe.cc/).
(cherry picked from commit
cd9ac605ec4615569121e0e9b6bc058684bebfe3)
git-svn-id: svn+ssh://svn.code.sf.net/p/freeglut/code/trunk/freeglut/freeglut@1793
7f0cb862-5218-0410-a997-
914c9d46530a