[R-SIG-Mac] New compilers for Xcode 2.2 (universal gfortran and gcc 4.0.3 for Intel Macs)

[Simon Urbanek]

Paul,

On Feb 9, 2006, at 7:28 PM, Paul Roebuck wrote:

> My reading of that page implies G77 is no longer needed (or  
> provided for that matter). Thought CRAN G77 binaries and GFORTRAN  
> (G95) didn't mix. Is this the "not yet ready for prime time"  
> developer setup or the new recommended setup for everyone?
>

I should have made this more clear: The new compilers are NOT meant  
for the 32-bit ppc CRAN release of R - the supplied G77 is still  
recommended. You cannot mix gcc3 and gcc4 binaries - that didn't  
change. The gfortran is supplied for developers that have to rely on  
gcc4 for one reason or another. Although there are still some issues  
with gcc4, it is the only way to get i686 and 64-bit/G5 ppc builds of  
R on OS X (Apple doesn't ship gcc3 for Intel Macs).

If you are not experimenting with your own builds of R, just ignore it.


> PS. Is there an TrimTheFat script for your universal compiler for  
> those of us who will not be upgrading anytime soon?
>

No, but you're free to use lipo to do it if you feel like it.  
However, I wouldn't thin any libraries, because then you won't be  
able to build universal binaries yourself.

Cheers,
Simon