Re: [OMPI users] Configure failure on Solaris Opteron with Sun Studio 11

[Pierre Valiron]

Thanks, I have configured also for f77 as you suggest.

The configure now completes, however it outputs a strange error message:

*** Fortran 90/95 compiler
checking whether we are using the GNU Fortran compiler... no
checking whether f95 accepts -g... yes
checking for Fortran flag to compile .f files... none
checking for Fortran flag to compile .f90 files... none
checking whether f77 and f95 compilers are compatible... no

configure: WARNING: *** Disabling Fortran 90/95 bindings

I have checked f77 invokes the proper Studio11 compiler.
And of course the objects are compatible between all Studio 11 compilers...

Then the make fails in orte/mca/pls/base with message
"pls_base_context.c", line 48: undefined symbol: MAXHOSTNAMELEN

Any further idea ?

PS. I attach the relevant output.




Brian Barrett wrote:

configure: WARNING: *** Fortran 77 and Fortran 90 compilers are not link compatible

On Feb 24, 2006, at 5:25 AM, Pierre Valiron wrote:

I have tried to build the 1.0.2a8 version on Solaris Opteron with Sun Studio 11. The configure fails on attempting to guess the largest fortran integer. I attach my build script, and output from configure.

Hopefully there is a simple fix.

F77=f77
FCFLAGS="-O -xtarget=opteron -xarch=amd64"





Hope this makes sense,

Brian

Open MPI has both a Fortran 77 and Fortran 90 bindings layer, so we configure and test both compilers. You need to add two more environment variables to get Open MPI configured correctly: The F77 / FFLAGS set the Fortran 77 compiler and its associated flags. FC / FCFLAGS set the Fortran (90,95,03) compiler and its associated flags. Because F77 was unset, configure tried using the g77 it found in your path. But because FFLAGS *was* set, it tried using the arguments in FFLAGS, which are for Sun's compiler, not gcc.

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