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openmpi/ompi/config/f90_get_sizeof.m4
Ralph Castain 214e26b539 Per Jeff (this work was done on a branch of mine, so I will do the commit):
Re-enable "./autogen.sh -no-ompi" again. If you -no-ompi, the entire OMPI
configury is skipped and the entire ompi/ subtree is not built. There's
some simple m4-isms that prune out the relevant parts.

I added ompi/config/, orte/config/, and opal/config/ directories. I moved a
bunch of m4 files from the top-level config/ dir into ompi/config/, and a few
into orte/config/.

Note that all 3 <project>/config directories have a config_files.m4 file. This
file contains the AC_CONFIG_FILES list for that project. The AC_CONFIG_FILES
call cannot be in an AC_DEFUN macro and conditionally called -- if it is
included at all, Autoconf will process it. Hence, these config_files.m4 files
don't AC_DEFUN -- they just have AC_CONFIG_FILES. m4_ifdef() is used to
conditionally include the files or not.

I moved a bunch of obvious OMPI-only m4 files from config/ to ompi/config/,
but I'm sure that there's more that could go. A ticket will be filed with
thoughts on future work in this area.

This commit was SVN r22113.
2009-10-20 23:44:20 +00:00

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dnl -*- shell-script -*-
dnl
dnl Copyright (c) 2004-2006 The Trustees of Indiana University and Indiana
dnl University Research and Technology
dnl Corporation. All rights reserved.
dnl Copyright (c) 2004-2005 The University of Tennessee and The University
dnl of Tennessee Research Foundation. All rights
dnl reserved.
dnl Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
dnl University of Stuttgart. All rights reserved.
dnl Copyright (c) 2004-2005 The Regents of the University of California.
dnl All rights reserved.
dnl $COPYRIGHT$
dnl
dnl Additional copyrights may follow
dnl
dnl $HEADER$
dnl
# OMPI_F90_GET_SIZEOF(type, variable to set)
# ------------------------------------------
AC_DEFUN([OMPI_F90_GET_SIZEOF],[
AS_VAR_PUSHDEF([type_var], [ompi_cv_f90_sizeof_$1])
AC_CACHE_CHECK([size of Fortran 90 $1], type_var,
[OMPI_F77_MAKE_C_FUNCTION([ompi_ac_size_fn], [size])
# Fortran module
cat > conftestf.f90 <<EOF
program fsize
external size
$1 :: x(2)
call size(x(1),x(2))
end program
EOF
# C module
if test -f conftest.h; then
ompi_conftest_h="#include \"conftest.h\""
else
ompi_conftest_h=""
fi
cat > conftest.c <<EOF
#include <stdio.h>
#include <stdlib.h>
$ompi_conftest_h
#ifdef __cplusplus
extern "C" {
#endif
void $ompi_ac_size_fn(char *a, char *b)
{
int diff = (int) (b - a);
FILE *f=fopen("conftestval", "w");
if (!f) exit(1);
fprintf(f, "%d\n", diff);
}
#ifdef __cplusplus
}
#endif
EOF
OMPI_LOG_COMMAND([$CC $CFLAGS -I. -c conftest.c],
[OMPI_LOG_COMMAND([$FC $FCFLAGS $FCFLAGS_f90 conftestf.f90 conftest.o -o conftest $LDFLAGS $LIBS],
[happy="yes"], [happy="no"])], [happy="no"])
if test "$happy" = "no" ; then
OMPI_LOG_MSG([here is the fortran 90 program:], 1)
OMPI_LOG_FILE([conftestf.f90])
AC_MSG_WARN([Could not determine size of $1])
AC_MSG_WARN([See config.log for details])
AC_MSG_ERROR([Cannot continue])
fi
AS_IF([test "$cross_compiling" = "yes"],
[AC_MSG_ERROR([Can not determine size of $1 when cross-compiling])],
[OMPI_LOG_COMMAND([./conftest],
[AS_VAR_SET(type_var, [`cat conftestval`])],
[AC_MSG_ERROR([Could not determine size of $1])])])
unset happy ompi_conftest_h
rm -rf conftest*])
$2=AS_VAR_GET(type_var)
AS_VAR_POPDEF([type_var])dnl
])dnl