source: trunk/m4/yat_gsl.m4 @ 2016

## $Id: yat_gsl.m4 2016 2009-08-02 14:22:09Z peter $

#   Copyright (C) 2009 Peter Johansson
#
#   This file is part of the yat library, http://dev.thep.lu.se/yat
#
#   The yat library is free software; you can redistribute it and/or
#   modify it under the terms of the GNU General Public License as
#   published by the Free Software Foundation; either version 3 of the
#   License, or (at your option) any later version.
#
#   The yat library is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
#   General Public License for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with yat. If not, see <http://www.gnu.org/licenses/>.
#

#
# serial 1  
#
# see http://www.gnu.org/software/automake/manual/automake.html#Serials


#
# 
#
AC_DEFUN([YAT_CHECK_GSL],
[
  yat_gsl_status="ok" 
  AX_PATH_GSL([$1],,[yat_gsl_status="no"])

  AS_IF([test "x$yat_gsl_status" = "xok"],
        [YAT_CHECK_GSL_HEADER([gsl/gsl_version.h],,
                              [yat_gsl_status="no-header"])
        ])

  AS_IF([test "x$yat_gsl_status" = "xok"],
        [# grep words startinging with '-L' in other words LDFLAGS
         for i in $GSL_LIBS; do
           AS_IF([test ${i:0:2} = "-L"],
                 [YAT_LD_ADD_FLAG([LDFLAGS], [$i])])
         done         
        ])

  AS_IF([test "x$yat_gsl_status" = "xok"],
        [m4_default([$2], [:])],
        [m4_default([$3], [:])])


]) # YAT_CHECK_GSL

AC_DEFUN([YAT_CHECK_GSL_HEADER],
[
  save_CPPFLAGS=$CPPFLAGS
  YAT_CPP_ADD_FLAG([CPPFLAGS],[`$GSL_CONFIG --cflags`])
  AC_CHECK_HEADER([$1], [$2], [$3])
]) # YAT_CHECK_GSL_HEADER