by the, just in case anyone is wondering, on macosx 10.8 with Fink 0.34.4 and r-base215 (et al.), the following caused the R package rgl to build, install, and (seemingly) work: ---- install.packages("rgl", configure.args='--with-gl-libs=/usr/X11/lib \ --disable-cocoa') ---- (without --with-gl-libs, -lGLU is not found, or -lX11 is not found; without --disable-cocoa, osx/osxgui.o is not found [it appears that in this case rgl is somewhat schizophrenic w.r.t. installing Mac-native Cocoa support, which i didn't anyway want.) cheers, Greg Minshall