[R-SIG-Mac] Unable to install package RGtk2

[David Winsemius]

Many thanks to Simon for clearing the way for a successful  
installation of rgl. Moving the existing freetypelib.dylib "out of the  
way" allowed compilation to proceed.

--------------
My other difficulty has been installing RGtk2. Using the Package  
Installer in the 64 bit GUI and a fresh installation of R 2.9.1 is see  
this response:

trying URL 'http://lib.stat.cmu.edu/R/CRAN/src/contrib/RGtk2_2.12.13.tar.gz'
Content type 'application/x-gzip' length 2205209 bytes (2.1 Mb)
opened URL
==================================================
downloaded 2.1 Mb

* Installing *source* package ‘RGtk2’ ...
checking for pkg-config... no                         # How does one  
fix a missing pkg-config?
checking for LIBGLADE... configure: WARNING: libglade not found      #  
or a missing libglade?
checking for INTROSPECTION... checking for GTK... configure: error:  
GTK version 2.8.0 required
ERROR: configuration failed for package ‘RGtk2’
* Removing ‘/Library/Frameworks/R.framework/Versions/2.9/Resources/ 
library/RGtk2’

The downloaded packages are in
	‘/private/var/folders/xS/xSUsVXTIHEiP7OLJg2OXmU+++TI/-Tmp-/RtmpuEegzZ/ 
downloaded_packages’
Updating HTML index of packages in '.Library'

Looking at Library/Frameworks/GTK+.framework/ in the Finder view (or  
looking at info.plist in the Current folder), it appears that I have  
version 2.14.X11 (or 2.14.3) of GTK+ installed. There is also a ../ 
Gtk.framework/ folder.

 > sessionInfo()
R version 2.9.1 Patched (2009-07-04 r48897)
x86_64-apple-darwin9.7.0

locale:
en_US.UTF-8/en_US.UTF-8/C/C/en_US.UTF-8/en_US.UTF-8

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base

other attached packages:
[1] rgl_0.84           Matrix_0.999375-29 lattice_0.17-25     
foreign_0.8-36

loaded via a namespace (and not attached):
[1] grid_2.9.1  tools_2.9.1
Warning message:
In install.packages(c("RGtk2"), lib = .libPaths()[1], contriburl =  
contrib.url(getOption("repos"),  :
   installation of package 'RGtk2' had non-zero exit status

-- 
David Winsemius