Howdy,
I'm getting an error while running configure for Gromacs 3.3.1 on Blue Gene. checking size of int... configure: error: cannot compute sizeof (int), 77 I've searched the archives but haven't found anything that resolves the problem. I'm cross compiling this on the front end node (ppc64 bit system running SLES9) for the Blue Gene using the XL compilers. Here is the script I'm using to invoke the configure command, any suggestions (maybe I need to use the -build flag, but I'm not sure what to use there): #!/bin/bash # FFTW Location: /gpfs_data/apps/fftw/3.1.2/fftw-3.1.2-s # Gromacs Install Location: /gpfs_data/apps/gromacs/3.3.1/gromacs-3.3.1-fftw_3.1.2 export CC=blrts_xlc export F77=blrts_f77 export CXX=blrts_xlc++ export FC=blrts_f77 export F90=blrts_f90 export CCFLAGS="-03 -qarch=440 -qtune=440" export CXXFLAGS="-03 -qarch=440 -qtune=440" export F77FLAGS="-03 -qarch=440 -qtune=440" export CPPFLAGS="-I/gpfs_data/apps/fftw/3.1.2/fftw-3.1.2-s/include" export LDFLAGS="-L/gpfs_data/apps/fftw/3.1.2/fftw-3.1.2-s/lib -L/usr/X11R6/lib" export C_LIBS="-L/gpfs_data/apps/fftw/3.1.2/fftw-3.1.2-s/lib -L/usr/X11R6/lib -L/bgl/BlueLight/ppcfloor/bglsys/lib -lmpich.rts -lmsglayer.rts -lrts.rts -ldevices.rts" export C_INCLUDES="-I/bgl/BlueLight/ppcfloor/bglsys/include -I/gpfs_data/apps/fftw/3.1.2/fftw-3.1.2-s/include" export F77_LIBS=" -L/bgl/BlueLight/ppcfloor/bglsys/lib -lmpich.rts -lmsglayer.rts -lrts.rts -ldevices.rts" export F77_INCLUDES="-I/bgl/BlueLight/ppcfloor/bglsys/include " export CXX_LIBS=" -L/bgl/BlueLight/ppcfloor/bglsys/lib -lcxxmpich.rts -lmpich.rts -lmsglayer.rts -lrts.rts -ldevices.rts" export CXX_INCLUDES="-I/bgl/BlueLight/ppcfloor/bglsys/include " cd /gpfs_data/home/root/tmp/gromacs/gromacs-3.3.1 ./configure MPICC=mpixlc --host=powerpc --disable-ppc-altivec --enable-mpi --program-suffix=_mpi_s --prefix=/gpfs_data/apps/gromacs/3.3.1/gromacs-3.3.1-fftw_3.1.2 Thanks, Mike
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