1
1
openmpi/config/f77_get_alignment.m4
George Bosilca d33801c0fa Rollback the last two commits.
svn merge -r 19823:19821 https://svn.open-mpi.org/svn/ompi/trunk ./

I copied the config directory in another location, and the original
.svn directory was replaced by the Open MPI one ... As a result my
first commit, applied the changes on the Open MPI trunk instead of
the other project.

This commit was SVN r19824.
2008-10-28 17:22:29 +00:00

93 строки
3.0 KiB
Bash

dnl -*- shell-script -*-
dnl
dnl Copyright (c) 2004-2005 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_F77_GET_ALIGNMENT(type, shell variable to set)
# ----------------------------------------------------
AC_DEFUN([OMPI_F77_GET_ALIGNMENT],[
AS_VAR_PUSHDEF([type_var], [ompi_cv_f77_alignment_$1])
AC_CACHE_CHECK([alignment of Fortran $1], type_var,
[OMPI_F77_MAKE_C_FUNCTION([ompi_ac_align_fn], [align])
# Fortran module
cat > conftestf.f <<EOF
program falign
external align
$1 w,x,y,z
CHARACTER a,b,c
common /foo/a,w,b,x,y,c,z
call align(w,x,y,z)
end
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>
$conftest
#ifdef __cplusplus
extern "C" {
#endif
void $ompi_ac_align_fn(char *w, char *x, char *y, char *z)
{ unsigned long aw, ax, ay, az;
FILE *f=fopen("conftestval", "w");
if (!f) exit(1);
aw = (unsigned long) w;
ax = (unsigned long) x;
ay = (unsigned long) y;
az = (unsigned long) z;
if (! ((aw%16)||(ax%16)||(ay%16)||(az%16))) fprintf(f, "%d\n", 16);
else if (! ((aw%12)||(ax%12)||(ay%12)||(az%12))) fprintf(f, "%d\n", 12);
else if (! ((aw%8)||(ax%8)||(ay%8)||(az%8))) fprintf(f, "%d\n", 8);
else if (! ((aw%4)||(ax%4)||(ay%4)||(az%4))) fprintf(f, "%d\n", 4);
else if (! ((aw%2)||(ax%2)||(ay%2)||(az%2))) fprintf(f, "%d\n", 2);
else fprintf(f, "%d\n", 1);
fclose(f);
}
#ifdef __cplusplus
}
#endif
EOF
OMPI_LOG_COMMAND([$CC $CFLAGS -I. -c conftest.c],
[OMPI_LOG_COMMAND([$F77 $FFLAGS conftestf.f conftest.o -o conftest $LDFLAGS $LIBS],
[happy="yes"], [happy="no"])], [happy="no"])
if test "$happy" = "no" ; then
AC_MSG_ERROR([Could not determine alignment of $1])
fi
AS_IF([test "$cross_compiling" = "yes"],
[AC_MSG_ERROR([Can not determine alignment of $1 when cross-compiling])],
[OMPI_LOG_COMMAND([./conftest],
[AS_VAR_SET(type_var, [`cat conftestval`])],
[AC_MSG_ERROR([Could not determine alignment of $1])])])
unset happy ompi_conf
rm -rf conftest*])
$2=AS_VAR_GET([type_var])
AS_VAR_POPDEF([type_var])dnl
])