Here's the problem:
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configure:9666: gfortran -O conftestf.f conftest.o -o conftest
/usr/bin/ld: Undefined symbols:
_fprintf$LDBLStub
collect2: ld returned 1 exit status
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We've had this report from other Tiger users as well (just yesterday,
as a matter of fact) -- it seems that gfortran 4.0 neglects to add a
library in the linking process for some functions (like fprintf). This
is from the test in LAM where we're trying to get the size or alignment
of a fortran type -- we have a simple Fortran program as the main(),
and it calls a C function to determine the size of a datatype and then
write its value out into a file where configure can get the result. We
actually use an almost identical test in Open MPI.
Users with gcc 4.1 did not seem to have this problem.
I unfortunately do not have a Tiger / gcc 4.0 machine at my disposal to
test with. :-\
There's a few options here:
1. re-write the test to not use fprintf. I'm not inclined to do this,
because this test has worked for years and years with many compilers on
many platforms; this is definitely a bug.
2. add "-lSystemStubs" to your LIBS before running configure (this is
the missing library)
3. configure gfortran to automatically add this library (some people
have had success with this -- I don't know the details of how to do
this)
On May 20, 2005, at 3:09 PM, Ben Heaps wrote:
> config.log is attached
--
{+} Jeff Squyres
{+} jsquyres_at_[hidden]
{+} http://www.lam-mpi.org/
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