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dnl
dnl acx_atlas.m4
dnl
dnl Figure out if the ATLAS library and header files are installed.
dnl
dnl %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
dnl
dnl This file part of: AstrOmatic software
dnl
dnl Copyright: (C) 2003-2016 IAP/CNRS/UPMC
dnl
dnl License: GNU General Public License
dnl
dnl AstrOmatic software is free software: you can redistribute it and/or
dnl modify it under the terms of the GNU General Public License as
dnl published by the Free Software Foundation, either version 3 of the
dnl License, or (at your option) any later version.
dnl AstrOmatic software is distributed in the hope that it will be useful,
dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
dnl GNU General Public License for more details.
dnl You should have received a copy of the GNU General Public License
dnl along with AstrOmatic software.
dnl If not, see <http://www.gnu.org/licenses/>.
dnl
dnl Last modified: 19/10/2016
dnl
dnl %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
dnl
dnl @synopsis ACX_ATLAS([ATLAS_LIBSDIR, ATLAS_INCDIR, ATLAS_PFLAG,
dnl [ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]]])
dnl You may wish to use these variables in your default LIBS:
dnl
dnl LIBS="$ATLAS_LIBS $LIBS"
dnl
dnl ACTION-IF-FOUND is a list of shell commands to run if BLAS/LAPACK
dnl is found (HAVE_ATLAS is defined first), and ACTION-IF-NOT-FOUND
dnl is a list of commands to run it if it is not found.
AC_DEFUN([ACX_ATLAS], [
AC_REQUIRE([AC_CANONICAL_HOST])
dnl --------------------
dnl Search include files
dnl --------------------
ATLAS_ERROR=""
if test x$2 = x; then
acx_atlas_incdir=""
AC_CHECK_HEADERS([cblas.h clapack.h],,
[
acx_atlas_incdir="atlas/"
AC_CHECK_HEADERS([${acx_atlas_incdir}cblas.h ${acx_atlas_incdir}clapack.h],,
[ATLAS_ERROR="ATLAS header files not found!"])
]
)
else
acx_atlas_incdir="$2/"
AC_CHECK_HEADERS([${acx_atlas_incdir}cblas.h ${acx_atlas_incdir}clapack.h],,
[
[acx_atlas_incdir="$2/include/"]
AC_CHECK_HEADER(
[${acx_atlas_incdir}cblas.h ${acx_atlas_incdir}clapack.h],,
[ATLAS_ERROR="ATLAS header files not found in "$2"!"]
)
]
)
fi
if test x$ATLAS_ERROR = x; then
AC_DEFINE_UNQUOTED(ATLAS_BLAS_H, "${acx_atlas_incdir}cblas.h", [BLAS header filename.])
AC_DEFINE_UNQUOTED(ATLAS_LAPACK_H, "${acx_atlas_incdir}clapack.h", [CLAPACK header filename.])
dnl --------------------
dnl Search library files
dnl --------------------
OLIBS="$LIBS"
LIBS=""
if test x$1 = x; then
if test -d "/usr/lib64/atlas"; then
acx_atlas_libopt="-L/usr/lib64/atlas"
elif test -d "/usr/lib/atlas"; then
acx_atlas_libopt="-L/usr/lib/atlas"
else
acx_atlas_libopt=""
fi
else
acx_atlas_libopt="-L$1"
fi
if test x$3 == xyes; then
dnl Parallel ATLAS 3.10+
acx_atlas_newlibs="tatlas"
dnl Older parallel ATLAS
acx_atlas_oldextralibs="-latlas -lptcblas -lcblas"
else
dnl Serial ATLAS 3.10+
acx_atlas_newlibs="satlas"
dnl Older serial ATLAS
acx_atlas_oldextralibs="-latlas -lcblas"
fi
acx_atlas_extralibs=""
AC_SEARCH_LIBS(
[clapack_dpotrf], [$acx_atlas_newlibs],,
[
unset ac_cv_search_clapack_dpotrf
acx_atlas_extralibs=$acx_atlas_oldextralibs
AC_SEARCH_LIBS(
[clapack_dpotrf], [lapack_atlas lapack],,
[
unset ac_cv_search_clapack_dpotrf
acx_atlas_extralibs=""
AC_SEARCH_LIBS(
[clapack_dpotrf], [atlas],
[ATLAS_WARN="Parallel ATLAS not found, reverting to serial!"],
[
unset ac_cv_search_clapack_dpotrf
acx_atlas_extralibs="-latlas -lcblas"
AC_SEARCH_LIBS(
[clapack_dpotrf], [lapack_atlas lapack],
[ATLAS_WARN="Parallel ATLAS not found, reverting to serial!"],
[ATLAS_ERROR="ATLAS library files not found!"],
[$acx_atlas_libopt $acx_atlas_extralibs]
)
],
$acx_atlas_libopt
)
],
[$acx_atlas_libopt $acx_atlas_extralibs]
)
],
$acx_atlas_libopt
)
LIBS="$OLIBS"
fi
dnl -------------------------------------------------------------------------
dnl Finally execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND
dnl -------------------------------------------------------------------------
if test "x$ATLAS_ERROR" = "x"; then
AC_DEFINE(HAVE_ATLAS,1,
[Define if you have the ATLAS libraries and header files.])
ATLAS_LIBS="$acx_atlas_libopt $ac_cv_search_clapack_dpotrf"
AC_SUBST(ATLAS_CFLAGS)
AC_SUBST(ATLAS_LDFLAGS, "")
AC_SUBST(ATLAS_LIBS)
AC_SUBST(ATLAS_WARN)
$4
else
AC_SUBST(ATLAS_ERROR)
$5
fi
])dnl ACX_ATLAS