Dear OpenMPI folks,I tried to compile the OpenMPI version 1.5.1 on a CentOS 5.5 computer with the default GCC shipped with the distribution, which is
gcc version 4.1.2 20080704 (Red Hat 4.1.2-48) The configuration failed: .... configure:156412: checking location of libltdl configure:156425: result: internal copyconfigure:156709: WARNING: Failed to build GNU libltdl. This usually means that something configure:156711: WARNING: is incorrectly setup with your environment. There may be useful information in configure:156713: WARNING: opal/libltdl/config.log. You can also disable GNU libltdl, which will disable configure:156715: WARNING: dynamic shared object loading, by configuring with --disable-dlopen.
configure:156717: error: Cannot continue The configuration line was was follows:$ ./configure --with-openib --with-devel-headers --enable-contrib-no-build=vt --enable-mpi-threads CFLAGS=-O3 -ffast-math -mtune=opteron -m32 CXXFLAGS=-O3 -ffast-math -mtune=opteron -m32 FFLAGS=-O3 -ffast-math -mtune=opteron -m32 FCFLAGS=-O3 -ffast-math -mtune=opteron -m32 F77=gfortran LDFLAGS=-O3 -ffast-math -mtune=opteron -m32 --prefix=/....../MPI/openmpi-1.5.1mt/linux32/gcc
With a newer version of GCC, version 4.2.4 (and also gcc version 4.5.1) the configuration completed fine.
Does there an error in my way of configuring, or is there a problem in the configure itself? I think the non-ability to configure and build OpenMPI with the default compiler on CentOS 5.5 is still a problem, also other versions of GCC seem not to have the same issue.
Best wishes, Paul -- Dipl.-Inform. Paul Kapinos - High Performance Computing, RWTH Aachen University, Center for Computing and Communication Seffenter Weg 23, D 52074 Aachen (Germany) Tel: +49 241/80-24915
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