adm_local/unix/config_files/check_opengl.m4

   1 dnl  Copyright (C) 2003  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
   2 dnl  CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
   3 dnl
   4 dnl  This library is free software; you can redistribute it and/or
   5 dnl  modify it under the terms of the GNU Lesser General Public
   6 dnl  License as published by the Free Software Foundation; either
   7 dnl  version 2.1 of the License.
   8 dnl
   9 dnl  This library 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 GNU
  12 dnl  Lesser General Public License for more details.
  13 dnl
  14 dnl  You should have received a copy of the GNU Lesser General Public
  15 dnl  License along with this library; if not, write to the Free Software
  16 dnl  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  17 dnl
  18 dnl  See http://www.opencascade.org/SALOME/ or email : webmaster.salome@opencascade.org
  19 dnl
  20 dnl
  21 dnl
  22 AC_DEFUN([CHECK_OPENGL],[
  23 AC_REQUIRE([AC_PROG_CC])dnl
  24 AC_REQUIRE([AC_PROG_CPP])dnl
  25 AC_REQUIRE([AC_LINKER_OPTIONS])dnl
  26
  27 AC_LANG_SAVE
  28 AC_LANG_CPLUSPLUS
  29
  30 AC_ARG_WITH(opengl,
  31   [AC_HELP_STRING([--with-opengl=DIR],[root directory path of OpenGL installation])],
  32   [opengl_dir="$withval"],
  33   [dirs="/usr/lib${LIB_LOCATION_SUFFIX} /usr/local/lib${LIB_LOCATION_SUFFIX} /opt/graphics/OpenGL/lib${LIB_LOCATION_SUFFIX} /usr/openwin/lib${LIB_LOCATION_SUFFIX} /usr/X11R6/lib${LIB_LOCATION_SUFFIX}"])dnl
  34
  35 AC_CHECKING(for OpenGL)
  36 AC_CHECKING(for OpenGL headers)
  37
  38 OGL_INCLUDES=""
  39 OGL_LIBS=""
  40
  41 GL_LIB_PATH=""
  42 GLU_LIB_PATH=""
  43
  44 OpenGL_ok=no
  45 OpenGL_libs_ok=no
  46 OpenGL_headers_ok=no
  47
  48 dnl openGL headers
  49 # by default
  50 if test "x${opengl_dir}" != "x" ; then
  51   AC_MSG_RESULT(for opengl_dir: $opengl_dir)
  52   AC_CHECK_HEADER([${opengl_dir}/include/GL/gl.h],
  53                   [OpenGL_headers_ok=yes; OGL_INCLUDES="-I${opengl_dir}/include"],
  54                   [OpenGL_headers_ok=no])
  55   if test "x${OpenGL_headers_ok}" = "xyes" ; then
  56     AC_CHECKING(for default OpenGL library)
  57     if test "x${opengl_dir}" = "x/usr" ; then
  58       OGL_LIBS=""
  59     else
  60       OGL_LIBS="-L${opengl_dir}/lib"
  61     fi
  62     LDFLAGS_old="$LDFLAGS"
  63     LDFLAGS="$LDFLAGS $OGL_LIBS"
  64     AC_CHECK_LIB([GL],
  65                  [glBegin],
  66                  [OpenGL_libs_ok=yes],
  67                  [OpenGL_libs_ok=no])
  68     if test "x${OpenGL_libs_ok}" = "xyes" ; then
  69       AC_TRY_LINK([],
  70                   [],
  71                   [OpenGL_libs_ok=yes ; OpenGL_ok=yes; OGL_LIBS="$OGL_LIBS -lGL"],
  72                   [OpenGL_libs_ok=no])
  73     fi
  74     LDFLAGS="$LDFLAGS_old"
  75   fi
  76 fi
  77
  78 if test "x${OpenGL_headers_ok}" = "xno" ; then
  79   AC_CHECK_HEADER(GL/gl.h,
  80                   [OpenGL_headers_ok=yes],
  81                   [OpenGL_headers_ok=no])
  82 fi
  83
  84 # under SunOS ?
  85 if test "x${OpenGL_headers_ok}" = "xno" ; then
  86   AC_CHECK_HEADERS(/usr/openwin/share/include/GL/glxmd.h,
  87                   [OpenGL_headers_ok=yes; OGL_INCLUDES="-I/usr/openwin/share/include/"],
  88                   [OpenGL_headers_ok=no])
  89 fi
  90
  91 # under IRIX ?
  92 if test "x${OpenGL_headers_ok}" = "xno" ; then
  93   AC_CHECK_HEADERS(/opt/graphics/OpenGL/include/GL/glxmd.h,
  94                   [OpenGL_headers_ok=yes; OGL_INCLUDES="-I/opt/graphics/OpenGL/include"],
  95                   [OpenGL_headers_ok=no])
  96 fi
  97
  98 # some linux OpenGL servers hide the includes in /usr/X11R6/include/GL
  99 if test "x${OpenGL_headers_ok}" = "xno" ; then
 100   AC_CHECK_HEADERS(/usr/X11R6/include/GL/gl.h,
 101                   [OpenGL_headers_ok=yes; OGL_INCLUDES="-I/usr/X11R6/include"],
 102                   [OpenGL_headers_ok=no])
 103 fi
 104
 105 if test "x${OpenGL_headers_ok}" = "xyes" ; then
 106   AC_CHECKING(for OpenGL library)
 107   for idir in $dirs; do
 108     if test -r "${idir}/libGL.so"; then
 109       AC_MSG_RESULT(in ${idir})
 110       if test "x${idir}" = "x/usr/lib${LIB_LOCATION_SUFFIX}" ; then
 111         GL_LIB_PATH=""
 112       else
 113         GL_LIB_PATH="-L${idir}"
 114       fi
 115       break
 116     fi
 117     # under IRIX ?
 118     if test -r "${idir}/libGL.sl"; then
 119       AC_MSG_RESULT(in ${idir})
 120       if test "x${idir}" = "x/usr/lib${LIB_LOCATION_SUFFIX}" ; then
 121         GL_LIB_PATH=""
 122       else
 123         GL_LIB_PATH="-L${idir}"
 124       fi
 125       break
 126     fi
 127   done
 128   LDFLAGS_old="${LDFLAGS}"
 129   LDFLAGS="${LDFLAGS} ${GL_LIB_PATH}"
 130   AC_CHECK_LIB([GL],
 131                [glBegin],
 132                [OpenGL_libs_ok=yes],
 133                [OpenGL_libs_ok=no])
 134   if test "x${OpenGL_libs_ok}" = "xyes" ; then
 135     AC_TRY_LINK([],
 136                 [],
 137                 [OpenGL_libs_ok=yes ; OGL_LIBS="${OGL_LIBS} ${GL_LIB_PATH} -lGL"],
 138                 [OpenGL_libs_ok=no])
 139   fi
 140   LDFLAGS="$LDFLAGS_old"
 141 fi
 142
 143 if test "x${OpenGL_libs_ok}" = "xyes" ; then
 144   for idir in $dirs; do
 145     if test -r "${idir}/libGLU.so"; then
 146       AC_MSG_RESULT(in ${idir})
 147       if test "x${idir}" = "x/usr/lib${LIB_LOCATION_SUFFIX}" ; then
 148         GLU_LIB_PATH=""
 149       else
 150         GLU_LIB_PATH="-L${idir}"
 151       fi
 152       break
 153     fi
 154     # under IRIX ?
 155     if test -r "${idir}/libGLU.sl"; then
 156       AC_MSG_RESULT(in ${idir})
 157       if test "x${idir}" = "x/usr/lib${LIB_LOCATION_SUFFIX}" ; then
 158         GLU_LIB_PATH=""
 159       else
 160         GLU_LIB_PATH="-L${idir}"
 161       fi
 162       break
 163     fi
 164   done
 165
 166   # workaround a problem with libGL library location
 167   for idir in $dirs; do
 168     if test -r "${idir}/libGLU.la"; then
 169       GLU_LA_PATH="${idir}/libGLU.la"
 170       GL_LA_PATH_TO_CHECK=`cat ${GLU_LA_PATH} | awk '{ for(i=1;i<NF;i++){ if(gsub("libGL.la","&",$i)>0) print $i } }'`
 171       if test -z ${GL_LA_PATH_TO_CHECK} || test -r ${GL_LA_PATH_TO_CHECK}; then
 172         # nothing to do
 173         break
 174       fi
 175       for jdir in $dirs; do
 176         if test -r "${jdir}/libGL.la"; then
 177           GL_LA_PATH="${jdir}/libGL.la"
 178           # copy the libGLU.la file and set correct libGL.la path in it
 179           NEW_GLU_LA_PATH=${ROOT_BUILDDIR}
 180           NEW_GLU_LA_FILE="${NEW_GLU_LA_PATH}/libGLU.la"
 181           sed -e "s%${GL_LA_PATH_TO_CHECK}%${GL_LA_PATH}%" ${GLU_LA_PATH} > "${NEW_GLU_LA_FILE}"
 182           chmod -f --reference=${GLU_LA_PATH} "${NEW_GLU_LA_FILE}"
 183           # set a new libGLU.la path
 184           GLU_LIB_PATH="-L${NEW_GLU_LA_PATH}"
 185           # create a simbolic link to libGLU.so
 186           for kdir in $dirs; do
 187             if test -r "${kdir}/libGLU.so"; then
 188               cp -fs "${kdir}/libGLU.so" "${NEW_GLU_LA_PATH}/libGLU.so"
 189               break
 190             fi
 191           done
 192           break
 193         fi
 194       done
 195       break
 196     fi
 197   done
 198
 199   LDFLAGS_old="${LDFLAGS}"
 200   LDFLAGS="${LDFLAGS} ${OGL_LIBS} ${GLU_LIB_PATH}"
 201   AC_CHECK_LIB([GLU],
 202                [gluBeginSurface],
 203                [OpenGL_libs_ok=yes],
 204                [OpenGL_libs_ok=no])
 205   if test "x${OpenGL_libs_ok}" = "xyes" ; then
 206     AC_TRY_LINK([],
 207                 [],
 208                 [OpenGL_libs_ok=yes ; OGL_LIBS="${OGL_LIBS} ${GLU_LIB_PATH} -lGLU"],
 209                 [OpenGL_libs_ok=no])
 210   fi
 211   LDFLAGS="$LDFLAGS_old"
 212 fi
 213
 214 if test "x${OpenGL_headers_ok}" = "xyes" ; then
 215   if test "x${OpenGL_libs_ok}" = "xyes" ; then
 216     OpenGL_ok=yes
 217   fi
 218 fi
 219
 220 AC_MSG_RESULT(for OpenGL_headers_ok: $OpenGL_headers_ok)
 221 AC_MSG_RESULT(for OpenGL_libs_ok: $OpenGL_libs_ok)
 222 AC_MSG_RESULT(for OpenGL_ok: $OpenGL_ok)
 223
 224 AC_SUBST(OGL_INCLUDES)
 225 AC_SUBST(OGL_LIBS)
 226
 227 AC_LANG_RESTORE
 228
 229 ])dnl
 230