93 строки
3.0 KiB
Plaintext
93 строки
3.0 KiB
Plaintext
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dnl -*- shell-script -*-
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dnl
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dnl Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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dnl University Research and Technology
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dnl Corporation. All rights reserved.
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dnl Copyright (c) 2004-2005 The University of Tennessee and The University
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dnl of Tennessee Research Foundation. All rights
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dnl reserved.
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dnl Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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dnl University of Stuttgart. All rights reserved.
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dnl Copyright (c) 2004-2005 The Regents of the University of California.
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dnl All rights reserved.
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dnl $COPYRIGHT$
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dnl
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dnl Additional copyrights may follow
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dnl
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dnl $HEADER$
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dnl
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# OMPI_F77_GET_ALIGNMENT(type, shell variable to set)
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# ----------------------------------------------------
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AC_DEFUN([OMPI_F77_GET_ALIGNMENT],[
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AS_VAR_PUSHDEF([type_var], [ompi_cv_f77_alignment_$1])
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AC_CACHE_CHECK([alignment of Fortran $1], type_var,
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[OMPI_F77_MAKE_C_FUNCTION([ompi_ac_align_fn], [align])
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# Fortran module
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cat > conftestf.f <<EOF
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program falign
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external align
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$1 w,x,y,z
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CHARACTER a,b,c
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common /foo/a,w,b,x,y,c,z
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call align(w,x,y,z)
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end
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EOF
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# C module
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if test -f conftest.h; then
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ompi_conftest_h="#include \"conftest.h\""
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else
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ompi_conftest_h=""
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fi
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cat > conftest.c <<EOF
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#include <stdio.h>
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#include <stdlib.h>
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$conftest
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#ifdef __cplusplus
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extern "C" {
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#endif
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void $ompi_ac_align_fn(char *w, char *x, char *y, char *z)
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{ unsigned long aw, ax, ay, az;
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FILE *f=fopen("conftestval", "w");
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if (!f) exit(1);
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aw = (unsigned long) w;
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ax = (unsigned long) x;
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ay = (unsigned long) y;
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az = (unsigned long) z;
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if (! ((aw%16)||(ax%16)||(ay%16)||(az%16))) fprintf(f, "%d\n", 16);
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else if (! ((aw%12)||(ax%12)||(ay%12)||(az%12))) fprintf(f, "%d\n", 12);
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else if (! ((aw%8)||(ax%8)||(ay%8)||(az%8))) fprintf(f, "%d\n", 8);
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else if (! ((aw%4)||(ax%4)||(ay%4)||(az%4))) fprintf(f, "%d\n", 4);
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else if (! ((aw%2)||(ax%2)||(ay%2)||(az%2))) fprintf(f, "%d\n", 2);
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else fprintf(f, "%d\n", 1);
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fclose(f);
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}
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#ifdef __cplusplus
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}
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#endif
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EOF
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OMPI_LOG_COMMAND([$CC $CFLAGS -I. -c conftest.c],
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[OMPI_LOG_COMMAND([$F77 $FFLAGS conftestf.f conftest.o -o conftest $LDFLAGS $LIBS],
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[happy="yes"], [happy="no"])], [happy="no"])
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if test "$happy" = "no" ; then
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AC_MSG_ERROR([Could not determine alignment of $1])
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fi
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AS_IF([test "$cross_compiling" = "yes"],
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[AC_MSG_ERROR([Can not determine alignment of $1 when cross-compiling])],
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[OMPI_LOG_COMMAND([./conftest],
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[AS_VAR_SET(type_var, [`cat conftestval`])],
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[AC_MSG_ERROR([Could not determine alignment of $1])])])
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unset happy ompi_conf
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rm -rf conftest*])
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$2=AS_VAR_GET([type_var])
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AS_VAR_POPDEF([type_var])dnl
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])
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