[gmx-users] MPICH or LAM/MPI

[Arneh Babakhani]

Hello, on this note, I'm having issues configuring and installing the 
mpi enabled mdrun. (see below). I keep getting a strange error:
*checking size of int... configure: error: cannot compute sizeof (int), 77
*I've pasted the output below, and I've attached the config.log for 
reference.  I'm really not sure what's going on here, so if anybody 
could help, would greatly appreciate it.

Regards,

Arneh*
*
[ababakha at chemcca40 gromacs-3.3.1]$ ./configure --enable-mpi 
--prefix=/home/ababakha/gromacs-mpi
checking build system type... i686-pc-linux-gnu
checking host system type... i686-pc-linux-gnu
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking how to create a ustar tar archive... gnutar
checking for cc... cc
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables...
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether cc accepts -g... yes
checking for cc option to accept ANSI C... none needed
checking for style of include used by make... GNU
checking dependency style of cc... gcc3
checking for mpxlc... no
checking for mpicc... mpicc
checking whether the MPI cc command works... yes
checking how to run the C preprocessor... mpicc -E
checking whether mpicc accepts -O3... yes
checking whether mpicc accepts -malign-double... yes
checking whether mpicc accepts -funroll-all-loops... yes
checking whether mpicc accepts  -O3 -fomit-frame-pointer 
-finline-functions -Wall -Wno-unused -malign-double 
-funroll-all-loops... yes
checking whether byte ordering is bigendian... no
checking for egrep... grep -E
checking for ANSI C header files... no
checking for sys/types.h... yes
checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking for int... yes
checking size of int... configure: error: cannot compute sizeof (int), 77
See `config.log' for more details.

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