Mercurial > hg > octave-lojdl > gnulib-hg
changeset 14398:5e1e246a6194
Fix OpenMP flag detection for various Fortran compilers.
* m4/openmp.m4 (_AC_LANG_OPENMP(Fortran 77)): Use '!$'
OpenMP-conditional compilation construct, to force compile
failure with missing OpenMP flag.
(AC_OPENMP): Add flags for Cray CCE and NEC SX compilers.
Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
author | Christian Rössel <christian.roessel@gmx.de> |
---|---|
date | Sun, 20 Feb 2011 18:50:14 +0100 |
parents | b105fc8bafd1 |
children | 5e10178f1466 |
files | ChangeLog m4/openmp.m4 |
diffstat | 2 files changed, 21 insertions(+), 3 deletions(-) [+] |
line wrap: on
line diff
--- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,12 @@ +2011-02-28 Christian Rössel <christian.roessel@gmx.de> (tiny change) + Markus Geimer <m.geimer@fz-juelich.de> (tiny change) + + Fix OpenMP flag detection for various Fortran compilers. + * m4/openmp.m4 (_AC_LANG_OPENMP(Fortran 77)): Use '!$' + OpenMP-conditional compilation construct, to force compile + failure with missing OpenMP flag. + (AC_OPENMP): Add flags for Cray CCE and NEC SX compilers. + 2011-02-25 Eric Blake <eblake@redhat.com> strstr: expand test coverage
--- a/m4/openmp.m4 +++ b/m4/openmp.m4 @@ -1,4 +1,4 @@ -# openmp.m4 serial 7 +# openmp.m4 serial 8 dnl Copyright (C) 2006-2011 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -35,7 +35,14 @@ # _AC_LANG_OPENMP(Fortran 77) # --------------------------- m4_define([_AC_LANG_OPENMP(Fortran 77)], -[AC_LANG_FUNC_LINK_TRY([omp_get_num_threads])]) +[ + program main + implicit none +!$ integer tid + tid = 42 + call omp_set_num_threads(2) + end +]) # _AC_LANG_OPENMP(Fortran) # --------------------------- @@ -70,12 +77,14 @@ dnl SGI C, PGI C -mp dnl Tru64 Compaq C -omp dnl IBM C (AIX, Linux) -qsmp=omp + dnl Cray CCE -homp + dnl NEC SX -Popenmp dnl If in this loop a compiler is passed an option that it doesn't dnl understand or that it misinterprets, the AC_LINK_IFELSE test dnl will fail (since we know that it failed without the option), dnl therefore the loop will continue searching for an option, and dnl no output file called 'penmp' or 'mp' is created. - for ac_option in -fopenmp -xopenmp -openmp -mp -omp -qsmp=omp; do + for ac_option in -fopenmp -xopenmp -openmp -mp -omp -qsmp=omp -homp -Popenmp; do ac_save_[]_AC_LANG_PREFIX[]FLAGS=$[]_AC_LANG_PREFIX[]FLAGS _AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $ac_option" AC_LINK_IFELSE([_AC_LANG_OPENMP],