[CentOS] centos 5.5 oscar: gcc41, gcc44 and gfortran41, gfortran44
Marcelo M. Garcia
marcelo.maia.garcia at googlemail.com
Fri Sep 3 04:58:51 EDT 2010
> So I must have a directory (for example /opt/compiler/gcc) with the
> different versions of gcc (4.1 and 4.4 in my case). Then the module tcl
> script chooses one and exclude the other, does it ?
> in order to have these gcc directories can I just copy the files from
> the installed rpm ? or must I compile the different gcc versions by myself ?
To be honest, I'm a little bit confused. If you install from the rpms
the binaries will have different names : gcc, gcc34, etc. So why the
hassle to differentiate them?
Unless, instead, you only set environment variables CC=gcc or CC=gcc34.
But sounds silly.
I think this make more sense if you have different MPI compilers, like,
one mpicc (gcc34), other mpicc(gcc41), etc. Or different BLAS libraries,
like libblas or libgoto etc.
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