Well, neither this nor the official 0.60.1 win32 build works with 1.9.2, due to this problem
caused by a deprecated Ruby C API macro (STR2CSTR). As noted in the linked article, the ruby-opengl maintainers seem to have skipped town and left a lot of folks (including me) high and dry!
Is there any kind soul out there (running windows and able to build gems from source) who would like to perform the patch, build the gem, and make another zip?
I've tried compiling it myself, but I think there are some path issues, because ruby's "config.h" isn't being found, even though it's right there at "C:\Ruby\include\ruby-1.9.1\i386-mingw32\ruby\config.h". I don't want to install the RubyInstaller "devkit" because I already have both cygwin and MinGW installed, and I don't think I should be forced to install yet another
gcc x86 tool-chain! However, if someone has instructions on how to get rubygems to use my existing MinGW/MSYS setup to compile gems, I'll perform the patching, compiling, and zipping and put the new version up here for others. I've attached the output of the gem install command.