[R-SIG-Mac] a question regarding Leopard and gfortran

[Kasper Daniel Hansen]

Thanks to Simon for all the work on the compilers.

I can see that the compilers and instructions have been updated on the  
"tools" page (r.research.att.com/tools). It seems as if the  
recommended way for us Leopard users is to use

gcc 4.2 (Apple Inc. build 5564) for Mac OS X 10.4 (Tiger): (updated  
2008/09/16)

in order to get a gfortran.

Unfortunately, unlike earlier gfortrans, this one also overwrites the  
Xcode GCC (although it seems as if it is the same exact version) and  
does not come with a gfortran-uninstall script. Personally I am a bit  
hesitant to do this, I vastly prefer the old style with a separate  
gfortran and an uninstall script. Is there any chance we will get  
this? Or should I be using gfortran 4.2.3 anyway?

Small comments on the page
1) the comment on Xcode 3.1 under Leopard CRAN seems a bit odd. When I  
run the Xcode 3.1 installer I do not really have an option of  
(de)selecting 4.2 separately.
2) I cannot find the gcc_select script mentioned under alternative  
compilers in my installation. I know I used to have it under Tiger to  
switch between gcc 3 and 4, but it is absent on my machine

Thanks, Kasper