Am 3.2.2012 um 15:33 schrieb Dominique Dhumieres:
> ld: library not found for -lgomp <----
> look here!
My conclusion of this thread is that Fink plays foul.
There might have been problems in some past with some old and finished
packages. Therefore /sw/var/lib/fink/path-prefix-g++-4.0/g++ and
/sw/var/lib/fink/path-prefix-g++-4.0/c++ were created and Fink creates a PATH
setting for its build job that has /sw/var/lib/fink/path-prefix-g++-4.0 before
the system's PATH components. So Fink's c++ and g++ shell script are found
before the sym-links in /usr/bin. Both shell scripts substitute c++/g++ with
g++-4.0.
In Mac OS X 10.6 (and maybe 10.7 as well?) a different mechanism is introduced
to make sure that either 32-bit or 64-bit binaries are used. They seem to
preserve the system's preference for GCC 4.0 or 4.2 or whatever.
In Mac OS X 10.5 adding "CC=gcc-4.2 CXX=g++-4.2" to the configure options makes
sure that the proper compilers are used during the configure step. But then for
the make step the argument "CCLD=g++" is given. This resets for the link steps
g++-4.2 to g++-4.0 – so libgomp cannot be found because GCC 4.0 has no idea of
and no support for OpenMP.
I need to check whether this make argument is needed at all when configure has
already "CC=gcc-4.2 CXX=g++-4.2" and the Makefile knows which compilers are to
be used...
For Tiger, Mac OS X 10.4 this plays no role. It has only GCC 4.0 and therefore
no OpenMP support. Presumingly neither configure nor make need any extra
arguments.
--
Greetings
Pete
America believes in education: the average professor earns more money in a year
than a professional athlete earns in a whole week.
– Evan Esar
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