This port installs the Linux version of the glide API, which is used to program the 3dfx/voodoo cards. Only Linux binaries can use this library. If you have a compiled Linux program that dynamically links against glide, everything is fine. If you want to compile programs yourself, you have to compile them as Linux binaries, using the compiler and tools from ports/devel/linux_devel. If your program uses other libraries, all libraries must be Linux libraries as well. In the case of Mesa, you can use ports/emulators/linux_mesa, which does everything for you. NOTE: The Mesa shared library from the Linux quake distributions does not work, use the FreeBSD port (although it installs a Linux lib). A simple test program is installed under /compat/linux/usr/bin/test-glide Please report problems to freebsd-multimedia@freebsd.org