[R-SIG-Mac] compiling R devel on vanilla tiger

[Simon Urbanek]

On Aug 22, 2005, at 12:44 AM, Cyrus Harmon wrote:

> Ok, but, sense or not, the result of the failing test is that the  
> the  use_lapack is turned off and we don't link against the  
> external lapack. Is this the desired behavior? If so there's  
> probably a better  solution than just breaking the build.

... it's not "breaking the build" - because if you go ahead ignoring  
the test, the build will be broken anyway, only silently - all of the  
affected vecLib functions will simply segfault - they just don't work  
with gfortran.

I have a prototype work-around for this by creating wrapper functions  
and calling cblas_xx instead and I'm testing it right now, but it's  
ugly and will make it to R-devel only if it doesn't break anything else.

I just repeat what I've said here already: unless you desperately  
need 64-bit R there is no real benefit from using gcc4, because it's  
still very instable (gfortran segfaults even on simple examples) and  
unreliable (gfortran is even slower than g77). There is a good reason  
why the CRAN build uses gcc3 and g77.

Cheers,
Simon