[linux-audio-user] pd and gem on gentoo

hello list, anyone using pd and gem on a gentoo system? i had no problems installing the latest version of pd (i adapted an older ebuild), but gem is being more problematic. i have installed all the dependencies mentioned in the documentation, but ./configure fails due to something related to openGL: Finished building Auxilliary Libraries ====================================== checking for main in -lX11... yes checking for main in -lXext... yes checking for XF86VidModeGetAllModeLines in -lXxf86vm... yes checking for sin in -lm... no checking for main in -lz... no checking for glInitNames in -lGL... no checking for glInitNames in -lMesaGL... no OpenGL is mandatory i have an HP laptop (amd64, nvidia video card). i'm still using the plain nv open drivers. google shows, as usual, lots of (contradicting and possibly outdated) solutions to this, so i decided to invoke the wisdom of the list. best, lj