Error in loading rgl package with Mac OS X

Question

I am trying to install rgl package (0.92.858) for R (2.14.2) under Mac OS X (Lion 10.7.3). When I try to load it (library(rgl)), I get the following error:

Answer 1

Okay solution in my case (OS X Yosemite), first download the RGL source (not binaries) in http://cran.r-project.org/src/contrib/rgl_0.95.1247.tar.gz, extract it, and build the library using this command:
R CMD INSTALL --disable-cocoa --x-includes=/usr/X11/ rgl
and it works like a charm.