public software.sextractor

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) 2003-2010 Emmanuel Bertin -- 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:          10/10/2010

dnl

dnl %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

dnl

dnl @synopsis ACX_ATLAS([ATLAS_LIBDIR, 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 --------------------

acx_atlas_ok=no

if test x$2 = x; then

  if test x$1 = x; then

    AC_CHECK_HEADERS([cblas.h clapack.h],[acx_atlas_ok=yes])

    if test x$acx_atlas_ok = xyes; then

      AC_DEFINE(ATLAS_BLAS_H, "cblas.h", [BLAS header filename.])

      AC_DEFINE(ATLAS_LAPACK_H, "clapack.h", [CLAPACK header filename.])

    else

      AC_CHECK_HEADERS([atlas/cblas.h atlas/clapack.h],[acx_atlas_ok=yes])

      if test x$acx_atlas_ok = xyes; then

        AC_DEFINE(ATLAS_BLAS_H, "atlas/cblas.h", [BLAS header filename.])

        AC_DEFINE(ATLAS_LAPACK_H, "atlas/clapack.h", [CLAPACK header filename.])

      else

        atlas_def=/usr/local/atlas

        AC_CHECK_HEADERS(

                [$atlas_def/include/cblas.h $atlas_def/include/clapack.h],

                [acx_atlas_ok=yes])

        if test x$acx_atlas_ok = xyes; then

          AC_DEFINE_UNQUOTED(ATLAS_BLAS_H, "$atlas_def/include/cblas.h",

                [BLAS header filename.])

          AC_DEFINE_UNQUOTED(ATLAS_LAPACK_H, "$atlas_def/include/clapack.h",

                [CLAPACK header filename.])

        else

          atlas_def=/usr/atlas

          AC_CHECK_HEADERS(

                [$atlas_def/include/cblas.h $atlas_def/include/clapack.h],

                [acx_atlas_ok=yes])

          if test x$acx_atlas_ok = xyes; then

            AC_DEFINE_UNQUOTED(ATLAS_BLAS_H, "$atlas_def/include/cblas.h",

                [BLAS header filename.])

            AC_DEFINE_UNQUOTED(ATLAS_LAPACK_H, "$atlas_def/include/clapack.h",

                [CLAPACK header filename.])

          else

            ATLAS_ERROR="CBLAS/LAPack include files not found!"

          fi

        fi

      fi

    fi

  else

    AC_CHECK_HEADERS([$1/include/cblas.h $1/include/clapack.h],

                [acx_atlas_ok=yes])

    if test x$acx_atlas_ok = xyes; then

      AC_DEFINE_UNQUOTED(ATLAS_BLAS_H, "$1/include/cblas.h",

                [BLAS header filename.])

      AC_DEFINE_UNQUOTED(ATLAS_LAPACK_H, "$1/include/clapack.h",

                [CLAPACK header filename.])

    else

      AC_CHECK_HEADERS([cblas.h clapack.h],[acx_atlas_ok=yes])

      if test x$acx_atlas_ok = xyes; then

        AC_DEFINE_UNQUOTED(ATLAS_BLAS_H, "cblas.h",

                [BLAS header filename.])

        AC_DEFINE_UNQUOTED(ATLAS_LAPACK_H, "clapack.h",

                [CLAPACK header filename.])

      else

        ATLAS_ERROR="CBLAS/LAPack include files not found in $1/include!"

      fi

    fi

  fi

else

  AC_CHECK_HEADERS([$2/cblas.h $2/clapack.h], [acx_atlas_ok=yes])

  if test x$acx_atlas_ok = xyes; then

    AC_DEFINE_UNQUOTED(ATLAS_BLAS_H, "$2/cblas.h",

                [BLAS header filename.])

    AC_DEFINE_UNQUOTED(ATLAS_LAPACK_H, "$2/clapack.h",

                [CLAPACK header filename.])

  else

    ATLAS_ERROR="CBLAS/LAPack include files not found in $2!"

  fi

fi

dnl --------------------

dnl Search library files

dnl --------------------

if test x$acx_atlas_ok = xyes; then

  OLIBS="$LIBS"

  LIBS=""

  if test x$1 = x; then

    AC_CHECK_LIB(lapack, [clapack_dpotrf],, [acx_atlas_ok=no],

                [-lcblas -latlas -lm])

    AC_CHECK_LIB(cblas, cblas_dgemm,, [acx_atlas_ok=no],

                [-latlas -lm])

    if test x$acx_atlas_ok = xyes; then

      ATLAS_LIBPATH=""

    else

      atlas_def=/usr/local/atlas

      unset ac_cv_lib_lapack_clapack_dpotrf

      unset ac_cv_lib_cblas_cblas_dgemm

      acx_atlas_ok=yes

      AC_CHECK_LIB(lapack, [clapack_dpotrf],, [acx_atlas_ok=no],

                [-L$atlas_def/lib -lcblas -latlas -lm])

      AC_CHECK_LIB(cblas, cblas_dgemm,, [acx_atlas_ok=no],

                [-L$atlas_def/lib -latlas -lm])

      if test x$acx_atlas_ok = xyes; then

        ATLAS_LIBPATH="-L$atlas_def/lib"

      else

        atlas_def=/usr/lib64/atlas

        unset ac_cv_lib_lapack_clapack_dpotrf

        unset ac_cv_lib_cblas_cblas_dgemm

        acx_atlas_ok=yes

        AC_CHECK_LIB(lapack, [clapack_dpotrf],, [acx_atlas_ok=no],

                [-L$atlas_def -lcblas -latlas -lm])

        AC_CHECK_LIB(cblas, cblas_dgemm,, [acx_atlas_ok=no],

                [-L$atlas_def -latlas -lm])

        if test x$acx_atlas_ok = xyes; then

          ATLAS_LIBPATH="-L$atlas_def"

        else

          atlas_def=/usr/lib/atlas

          unset ac_cv_lib_lapack_clapack_dpotrf

          unset ac_cv_lib_cblas_cblas_dgemm

          acx_atlas_ok=yes

          AC_CHECK_LIB(lapack, [clapack_dpotrf],, [acx_atlas_ok=no],

                [-L$atlas_def -lcblas -latlas -lm])

          AC_CHECK_LIB(cblas, cblas_dgemm,, [acx_atlas_ok=no],

                [-L$atlas_def -latlas -lm])

          if test x$acx_atlas_ok = xyes; then

            ATLAS_LIBPATH="-L$atlas_def"

          else

            atlas_def=/usr/atlas

            unset ac_cv_lib_lapack_clapack_dpotrf

            unset ac_cv_lib_cblas_cblas_dgemm

            acx_atlas_ok=yes

            AC_CHECK_LIB(lapack, [clapack_dpotrf],, [acx_atlas_ok=no],

                [-L$atlas_def/lib -lcblas -latlas -lm])

            AC_CHECK_LIB(cblas, cblas_dgemm,, [acx_atlas_ok=no],

                [-L$atlas_def/lib -latlas -lm])

            if test x$acx_atlas_ok = xyes; then

              ATLAS_LIBPATH="-L$atlas_def/lib"

            else

              ATLAS_ERROR="CBLAS/LAPack library files not found at usual locations!"

            fi

          fi

        fi

      fi

    fi

  else

    AC_CHECK_LIB(lapack, [clapack_dpotrf],, [acx_atlas_ok=no],

                [-L$1 -lcblas -latlas -lm])

    AC_CHECK_LIB(cblas, cblas_dgemm,, [acx_atlas_ok=no],

                [-L$1 -latlas -lm])

    if test x$acx_atlas_ok = xyes; then

      ATLAS_LIBPATH="-L$1"

    else

      unset ac_cv_lib_lapack_clapack_dpotrf

      unset ac_cv_lib_cblas_cblas_dgemm

      acx_atlas_ok=yes

      AC_CHECK_LIB(lapack, [clapack_dpotrf],, [acx_atlas_ok=no],

                [-L$1/lib -lcblas -latlas -lm])

      AC_CHECK_LIB(cblas, cblas_dgemm,, [acx_atlas_ok=no],

                [-L$1/lib -latlas -lm])

      if test x$acx_atlas_ok = xyes; then

        ATLAS_LIBPATH="-L$1/lib"

      else

        ATLAS_ERROR="CBLAS/LAPack library files not found in $1!"

      fi

    fi

  fi

  LIBS="$OLIBS"

fi

AC_SUBST(ATLAS_LIBPATH)

AC_SUBST(ATLAS_CFLAGS)

dnl -------------------------------------------------------------------------

dnl Finally, check MP version and execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND

dnl -------------------------------------------------------------------------

if test x"$acx_atlas_ok" = xyes; then

  AC_DEFINE(HAVE_ATLAS,1,

        [Define if you have the ATLAS libraries and header files.])

  if test x$3 = xyes; then

dnl Check whether the multithreaded version of ATLAS is there too:

    AC_CHECK_LIB(ptcblas, cblas_dgemm, [acx_atlast_ok=yes], [acx_atlast_ok=no],

        [$ATLAS_LIBPATH -lcblas -latlas -lm])

    if test x$acx_atlast_ok = xyes; then

      ATLAS_LIB="$ATLAS_LIBPATH -llapack -lptcblas -lcblas -latlas"

      LIBS="$OLIBS"

      AC_SUBST(ATLAS_LIB)

      AC_DEFINE(HAVE_ATLAS_MP,1,

        [Define if you have the parallel ATLAS libraries.])

      $4

    else

      ATLAS_LIB="$ATLAS_LIBPATH -llapack -lcblas -latlas"

      LIBS="$OLIBS"

      AC_SUBST(ATLAS_LIB)

      ATLAS_WARN="CBLAS/LAPack was compiled without multithreading support!"

      AC_SUBST(ATLAS_WARN)

      $4

    fi

  else

    ATLAS_LIB="$ATLAS_LIBPATH -llapack -lcblas -latlas"

    LIBS="$OLIBS"

    AC_SUBST(ATLAS_LIB)

    $4

  fi

else

  AC_SUBST(ATLAS_ERROR)

  $5

fi

])dnl ACX_ATLAS