Hello again! On 12/21/2010 03:16 PM, Olaf Lenz wrote: > The problem seems to be that AC_PROG_CC doesn't work when using it in > a conditional, is that right? Is there any simple way to do what I > want?
After some trial and error I have found a solution for my problem that is very simple. Now I wonder whether this is actually the correct way to do it, or are there some hidden pitfalls? Olaf -- Dr. rer. nat. Olaf Lenz Institut für Computerphysik, Pfaffenwaldring 27, D-70569 Stuttgart Phone: +49-711-685-63607
AC_INIT(ESPResSo, [2.9.0], [espressomd-us...@nongnu.org])
AC_ARG_WITH(mpi,,, [with_mpi=guess])
if test x"$with_mpi" != xno; then
COMPILERS="mpicc hcc mpxlc_r mpxlc mpcc cmpicc gcc cc"
else
COMPILERS="gcc cc"
fi
AC_PROG_CC($COMPILERS)
AS_IF([test x"$with_mpi" != xno], [
# test whether MPI_Init is available now
AC_CHECK_FUNC(MPI_Init,, [
# if not, give up or use fake
if test xyes = x"$with_mpi"; then
AC_MSG_FAILURE([MPI compiler requested, but couldn't compile with MPI.])
else
AC_MSG_WARN([No MPI compiler found, will use fake implementation!])
use_mpi_fake="yes"
fi
])
])
# if requested, use the fake implementation
#AM_CONDITIONAL(MPI_FAKE, [test x$use_mpi_fake = xyes])
<<attachment: olenz.vcf>>
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