[R-SIG-Mac] Installing igraph

[Thomas]

I've been given an old Mac to run some R programs on and I'm having  
trouble setting up. I just need to get igraph working It's OS X 10.5.6  
and I have installed R 2.15.3 and the copy of XCode that came on the  
DVD. The wifi connection keeps dropping or there's some other problem  
so I can't use package installer. The list of available packages  
appears but I can't install any of them. The wifi isn't great but I  
actually don't think that's it.

So I copied the igraph tar.gz file to my machine and in Terminal ran R  
CMD INSTALL /Users...igraph_0.6.5-2.tar.gz. I get an error message  
saying

make: gfortran: command not found
Error 127
compilation failed for package

Any advise would be appreciated.

Thomas
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