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# ===========================================================================
# http://www.gnu.org/software/autoconf-archive/ax_have_opengl.html
# ===========================================================================
#
# OBSOLETE MACRO
#
# Please use AX_CHECK_GL, AX_CHECK_GLU, AX_CHECK_GLUT, AX_CHECK_GLX
# instead
#
# SYNOPSIS
#
# AX_HAVE_OPENGL
#
# DESCRIPTION
#
# Search for OpenGL. We search first for Mesa (a GPL'ed version of Mesa)
# before a vendor's version of OpenGL, unless we were specifically asked
# not to with `--with-Mesa=no' or `--without-Mesa'.
#
# The four "standard" OpenGL libraries are searched for: "-lGL", "-lGLU",
# "-lGLX" (or "-lMesaGL", "-lMesaGLU" as the case may be) and "-lglut".
#
# All of the libraries that are found (since "-lglut" or "-lGLX" might be
# missing) are added to the shell output variable "GL_LIBS", along with
# any other libraries that are necessary to successfully link an OpenGL
# application (e.g. the X11 libraries). Care has been taken to make sure
# that all of the libraries in "GL_LIBS" are listed in the proper order.
#
# Additionally, the shell output variable "GL_CFLAGS" is set to any flags
# (e.g. "-I" flags) that are necessary to successfully compile an OpenGL
# application.
#
# The following shell variable (which are not output variables) are also
# set to either "yes" or "no" (depending on which libraries were found) to
# help you determine exactly what was found.
#
# have_GL
# have_GLU
# have_GLX
# have_glut
#
# LICENSE
#
# Copyright (c) 2008 Matthew D. Langston
# Copyright (c) 2008 Ahmet Inan <auto@ainan.org>
# Copyright (c) 2013 Bastien Roucaries <roucaries.bastien+autoconf@gmail.com
#
# This program 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 2 of the License, or (at your
# option) any later version.
#
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
#
# As a special exception, the respective Autoconf Macro's copyright owner
# gives unlimited permission to copy, distribute and modify the configure
# scripts that are the output of Autoconf when processing the Macro. You
# need not follow the terms of the GNU General Public License when using
# or distributing such scripts, even though portions of the text of the
# Macro appear in them. The GNU General Public License (GPL) does govern
# all other use of the material that constitutes the Autoconf Macro.
#
# This special exception to the GPL applies to versions of the Autoconf
# Macro released by the Autoconf Archive. When you make and distribute a
# modified version of the Autoconf Macro, you may extend this special
# exception to the GPL to apply to your modified version as well.
#serial 8
AU_ALIAS([MDL_HAVE_OPENGL], [AX_HAVE_OPENGL])
AC_DEFUN([AX_HAVE_OPENGL],
[
AC_REQUIRE([AX_CHECK_GL])
AC_REQUIRE([AX_CHECK_GLU])
AC_REQUIRE([AX_CHECK_GLUT])
AC_REQUIRE([AX_CHECK_GLX])
AC_OBSOLETE([$0], [;please use AX_CHECK_GL, AX_CHECK_GLU, AX_CHECK_GLUT, AX_CHECK_GLX instead])
AC_MSG_WARN([[AX_HAVE_OPENGL is deprecated, please use AX_CHECK_GL, AX_CHECK_GLU, AX_CHECK_GLUT, AX_CHECK_GLX instead]])
# override old flags: really ugly but needed for compatibility
GL_CFLAGS="$GL_CFLAGS $GLU_CFLAGS $GLUT_CFLAGS $GLX_CFLAGS"
GL_LIBS="$GL_LIBS $GLU_LIBS $GLUT_LIBS $GLX_LIBS"
])
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