Teach configure more about configuring for Windows using the new $OS_TYPE variable.  The compiler is now set up to use the MS Visual C++ cl.exe compiler; extra compiler flags are appended to $CFLAGS and $CXXFLAGS; test code Makefile subsitution values are set up for Win32; and UNIX-style paths are translated to DOS-style paths (using unix2dos finally!) as necessary.
Teach configure more about configuring for Windows using the new $OS_TYPE
variable.  The compiler is now set up to use the MS Visual C++ cl.exe
compiler; extra compiler flags are appended to $CFLAGS and $CXXFLAGS;
test code Makefile subsitution values are set up for Win32; and UNIX-style
paths are translated to DOS-style paths (using unix2dos finally!) as
necessary.

The check for the OpenGL library is still not ready, but an assumption is
made that it is in a location that the compiler knows about.  For the
moment, this is good enough.


git-svn-id: 769d22dfa2d22aad706b9a451492fb87c0735f19@1286 08b38cba-cd3b-11de-854e-f91c5b6e4272

vancegroup-mirrors/vrjuggler,vrjuggler/vrjuggler,LiuKeHua/vrjuggler,vancegroup-mirrors/vrjuggler,vancegroup-mirrors/vrjuggler,MichaelMcDonnell/vrjuggler,LiuKeHua/vrjuggler,MichaelMcDonnell/vrjuggler,MichaelMcDonnell/vrjuggler,MichaelMcDonnell/vrjuggler,godbyk/vrjuggler-upstream-old,LiuKeHua/vrjuggler,vrjuggler/vrjuggler,vrjuggler/vrjuggler,vrjuggler/vrjuggler,vrjuggler/vrjuggler,LiuKeHua/vrjuggler,MichaelMcDonnell/vrjuggler,vancegroup-mirrors/vrjuggler,vancegroup-mirrors/vrjuggler,godbyk/vrjuggler-upstream-old,godbyk/vrjuggler-upstream-old,godbyk/vrjuggler-upstream-old,godbyk/vrjuggler-upstream-old,MichaelMcDonnell/vrjuggler,vrjuggler/vrjuggler,LiuKeHua/vrjuggler,LiuKeHua/vrjuggler,godbyk/vrjuggler-upstream-old,MichaelMcDonnell/vrjuggler,vrjuggler/vrjuggler,vancegroup-mirrors/vrjuggler,LiuKeHua/vrjuggler,MichaelMcDonnell/vrjuggler,LiuKeHua/vrjuggler,vrjuggler/vrjuggler