liu xin wrote:
Dear GMXers
I got the error message " cannot compute sizeof (int)" when I tried to
configure GMX3.3.1 on IBM PPC p575 AIX5.3, this is how I did it:
for fftw2.1.5
export CC="xlc_r -q64 -qhot"
export CXX="xlC_r -q64 -qhot"
export OBJECT_MODE=64
export FFLAGS="-O3 -qarch=pwr4 -qtune=pwr4 -qmaxmem=-1"
export CFLAGS="-O3 -qarch=pwr4 -qtune=pwr4 -qmaxmem=-1"
./configure --prefix=/home/usr/programs/fftw215 --enable-float
--enable-mpi --enable-thread
make
make install
for GMX3.3.1
export CPPFLAGS=-I/home/usr/programs/fftw215/include
export LDFLAGS=-I/home/usr/programs/fftw215/lib
./configure --prefix=/home/usr/programs/gromacs331mpi --with-fft=fftw2
--without-x --disable-fortran --enable-mpi --enable-float
then I got the following error:
checking size of int... configure: error: cannot compute sizeof (int), 77
So the program configure tries to compile and run to check the size of
int didn't work.
have you guys ever experienced this problem before? Any suggestions are
appreciated!
Look at the last several hundred lines of output in config.log and see
what the problem was.
Mark
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