On Fri, Apr 17, 2009 at 10:09:23AM +0200, Martin Costabel wrote:
> Steve McMillan wrote:
>> I get the following error when I try to install openmpi v. 1.3.1-1000
>> from source on MacOS 10.5.6. The installation proceeds for ~15
>> minutes, then ends with:
>>
>> .
>> Making all in doc
>> make[7]: Nothing to be done for `all'.
>> make[7]: Nothing to be done for `all-am'.
>> Making all in vtfilter
>> g++ -DHAVE_CONFIG_H -I. -I../.. -I../../extlib/otf/otflib
>> -I../../extlib/otf/otflib -I../../vtlib/ -I../../vtlib -I/sw/include
>> -fopenmp -DVT_OMP -O3 -DNDEBUG -finline-functions -c -o
>> vtfilter-vt_filter.o `test -f 'vt_filter.cc' || echo './'`vt_filter.cc
>> cc1plus: error: unrecognized command line option "-fopenmp"
>> make[6]: *** [vtfilter-vt_filter.o] Error 1
>
> This is doubly weird:
>
> First, because the configure script explicitly tests for the
> availability of the "-fopenmp" flag. In my case (as in Alexander's,
> apparently), it finds that this flag does not work and then disables it
> for the rest of the build procedure. In your case, configure seems to
> think that the flag can be used, but then it turns out later that it
> cannot.
>
> On a second degree, the package itself is weird, because it requires
> gcc43 (which would understand the "-fopenmp" flag, contrary to Apple's
> gcc-4.0.1), but then it doesn't use it for building.
>
> Maybe the package maintainer can explain.
>
> --
> Martin
Martin,
The openmpi package need gcc43 to build the fortran support in
openmpi. If I had to guess, the most likely thing going on here is
that a local symlink or alias has been made to gcc-4 so that it
is being executed as gcc. A simple 'gcc -v' will reveal if that
is the case.
Jack
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