macros/opengl.m4

   1 dnl
   2 dnl    Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
   3 dnl
   4 dnl  This program is free software; you can redistribute it and/or modify
   5 dnl  it under the terms of the GNU General Public License as published by
   6 dnl  the Free Software Foundation; either version 3 of the License, or
   7 dnl  (at your option) any later version.
   8 dnl
   9 dnl  This program is distributed in the hope that it will be useful,
  10 dnl  but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 dnl  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 dnl  GNU General Public License for more details.
  13 dnl  You should have received a copy of the GNU General Public License
  14 dnl  along with this program; if not, write to the Free Software
  15 dnl  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  16
  17 AC_DEFUN([GNASH_PATH_OPENGL],
  18 [
  19   opengl=yes
  20   if test x"$opengl" = x"yes"; then
  21     dnl Look for the headers.
  22     AC_ARG_WITH(opengl_includes, AC_HELP_STRING([--with-opengl-includes], [directory where OpenGL headers are]), with_opengl_includes=${withval})
  23     AC_CACHE_VAL(ac_cv_path_opengl_includes,[
  24       if test x"${with_opengl_includes}" != x ; then
  25         if test -f ${with_opengl_includes}/GL/gl.h -a -f ${with_opengl_includes}/GL/glu.h ; then
  26           ac_cv_path_opengl_includes="`(cd ${with_opengl_includes}; pwd)`"
  27         else
  28           AC_MSG_ERROR([${with_opengl_includes} directory doesn't contain GL/gl.h])
  29         fi
  30       fi
  31     ])
  32
  33     dnl If the include path hasn't been specified, go look for it.
  34     if test x"${darwin}" = xyes; then
  35       ac_cv_path_opengl_includes="-framework Carbon -framework ApplicationServices -framework OpenGL -framework AGL -I/System/Library/Frameworks/OpenGL.framework/Headers"
  36     else
  37       notsgigl=no
  38       if test x"${ac_cv_path_opengl_includes}" = x; then
  39         AC_MSG_CHECKING([for OpenGL headers])
  40         newlist="/System/Library/Frameworks/OpenGL.framework/Headers ${incllist}"
  41         for i in $newlist; do
  42           if test -f $i/GL/gl.h -o -f $i/OpenGL.h; then
  43             if test -f $i/OpenGL.h; then
  44               notsgigl=yes
  45               AC_DEFINE(NOT_SGI_GL, [1], [Is not based on the SGI GL])
  46             fi
  47             if test x"$i" != x"/usr/include"; then
  48               ac_cv_path_opengl_includes="-I$i"
  49               break
  50             else
  51               ac_cv_path_opengl_includes="default"
  52               break
  53             fi
  54                   if test -f $i/GL/glu.h; then
  55                     AC_MSG_WARN([GL/glu.h not installed!])
  56                   fi
  57           fi
  58         done
  59       fi
  60     fi
  61
  62     if test x"${ac_cv_path_opengl_includes}" = x; then
  63       AC_CHECK_HEADERS([GL/gl.h], [ac_cv_path_opengl_includes=""])
  64     fi
  65
  66     if test x"${ac_cv_path_opengl_includes}" != x -a x"${ac_cv_path_opengl_includes}" != x"default"; then
  67       OPENGL_CFLAGS="${ac_cv_path_opengl_includes}"
  68     else
  69       OPENGL_CFLAGS=""
  70     fi
  71     AC_MSG_RESULT(${ac_cv_path_opengl_includes})
  72
  73     dnl Look for the libraries.
  74     AC_ARG_WITH(opengl_lib, AC_HELP_STRING([--with-opengl-lib], [directory where OpenGL libraries are]), with_opengl_lib=${withval})
  75     AC_CACHE_VAL(ac_cv_path_opengl_lib,[
  76       if test x"${with_opengl_lib}" != x ; then
  77         if test -f ${with_opengl_lib}/libGL.a -o -f ${with_opengl_lib}/libGL.${shlibext}; then
  78           ac_cv_path_opengl_lib="-L`(cd ${with_opengl_lib}; pwd)` -lGL -lGLU"
  79         else
  80           if test -f ${with_opengl_lib}/libopengl32.a; then
  81             ac_cv_path_opengl_lib="-L`(cd ${with_opengl_lib}; pwd)` -lopengl32 -lglu32"
  82           else
  83             AC_MSG_ERROR([${with_opengl_lib} directory doesn't contain libGL.])
  84           fi
  85         fi
  86       fi
  87     ])
  88
  89     if test x"${darwin}" = xyes; then
  90       ac_cv_path_opengl_lib="-framework Carbon -framework ApplicationServices -framework OpenGL -framework AGL"
  91     else
  92       if test x"${ac_cv_path_opengl_lib}" = x; then
  93         newlist="/System/Library/Frameworks/OpenGL.framework/Versions/Current/Libraries /System/Library/Frameworks/OpenGL.framework/Libraries ${libslist}"
  94         for i in $newlist; do
  95           if test -f $i/libGL.${shlibext} -o -f $i/libGL.a; then
  96             if test ! x"$i" = x"/usr/lib" -a ! x"$i" = x"/usr/lib64"; then
  97               ac_cv_path_opengl_lib="-L$i -lGL"
  98               break
  99                   else
 100               ac_cv_path_opengl_lib="-lGL"
 101               break
 102                   fi
 103           fi
 104         done
 105         if test x"${ac_cv_path_opengl_lib}" != x; then
 106           if test -f $i/libGLU.${shlibext} -o -f $i/libGLU.a; then
 107             ac_cv_path_opengl_lib="${ac_cv_path_opengl_lib} -lGLU"
 108           else
 109             AC_WARN([No GLU library found!])
 110           fi
 111         else                      dnl nothing found, check for the win32 names
 112           for i in $newliblist; do
 113             if test -f $i/libopengl32.${shlibext} -o -f $i/libopengl32.a; then
 114               ac_cv_path_opengl_lib="-L$i -lopengl32 =lopenglu32"
 115               break
 116             fi
 117           done
 118         fi
 119       fi                        dnl end of if ac_cv_path_opengl_lib
 120     fi                          dnl end of if darwin
 121   fi                            dnl end of if $opengl
 122
 123   if test x"${ac_cv_path_opengl_lib}" = x; then
 124     AC_CHECK_LIB([GL], [glBegin], [ac_cv_path_opengl_lib="-lGL -lGLU"])
 125   fi
 126
 127   if test x"${ac_cv_path_opengl_lib}" != x ; then
 128       OPENGL_LIBS="${ac_cv_path_opengl_lib}"
 129       has_opengl="yes"
 130   else
 131       OPENGL_LIBS=""
 132   fi
 133
 134   if test x"${darwin}" = xyes; then
 135           OPENGL_LIBS="${OPENGL_LIBS} -dylib_file /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib:/System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib"
 136   fi
 137
 138   AC_SUBST(OPENGL_CFLAGS)
 139   AC_SUBST(OPENGL_LIBS)
 140 ])
 141
 142 # Local Variables:
 143 # c-basic-offset: 2
 144 # tab-width: 2
 145 # indent-tabs-mode: nil
 146 # End: