UIs are not required for building the plugins, so don't try to build GL libs if OpenGL is not available.
This is required for MOD builds, as X11/GL is not present there.
Also nice for those that run headless.
PS: The makefiles in this repo already handle the case of plugins not having UIs.
UIs are not required for building the plugins, so don't try to build GL libs if OpenGL is not available. This is required for MOD builds, as X11/GL is not present there. Also nice for those that run headless.
PS: The makefiles in this repo already handle the case of plugins not having UIs.