[R] Source installation error: "gfortran and gcc disagree on int and double ...

Prof Brian Ripley ripley at stats.ox.ac.uk
Mon Aug 7 09:29:17 CEST 2006

First, you do not need -fPIC: it is the same as -fpic which R selects on 
your platform.

Second, please look at config.log to find the exact problem: it well be 
that your compilers are not properly installed (as was the case in the 
reference you quote below).

Finally, your compilers are pretty obselete (there have been 4.0.2, 4.0.3, 
4.1.0 and 4.1.1), so you should be updating them.

On Sun, 6 Aug 2006, Mike wrote:

> ...  configure: error: Maybe change CFLAGS or FFLAGS?"
> Dear list, 
> This problem has been posted before
> (http://finzi.psych.upenn.edu/R/Rhelp02a/archive/7982.html), 

That was over three years ago, for R 1.6.0 on Solaris, so I am not sure 
why you thought it would help.

> but suggestions did not help. My machine:  AMD Duron 800 MHz, 
> MandrivaLinux 10.2, gcc (and gfortran): 4.0.1, R source: 2.3.1. I had to 
> set CPICFLAGS and FPICFLAGS to "-fPIC". I tried ./configure with default 
> CFLAGS and FFLAGS flags and with "-O3 -g" with the same error message.
> How can I pass the error?
> Thank you in advance, 
> Mike.
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Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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