adm_local/unix/config_files/check_opengl.m4

   1 dnl Copyright (C) 2007-2022  CEA/DEN, EDF R&D, OPEN CASCADE
   2 dnl
   3 dnl Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
   4 dnl CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
   5 dnl
   6 dnl This library is free software; you can redistribute it and/or
   7 dnl modify it under the terms of the GNU Lesser General Public
   8 dnl License as published by the Free Software Foundation; either
   9 dnl version 2.1 of the License, or (at your option) any later version.
  10 dnl
  11 dnl This library is distributed in the hope that it will be useful,
  12 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 dnl Lesser General Public License for more details.
  15 dnl
  16 dnl You should have received a copy of the GNU Lesser General Public
  17 dnl License along with this library; if not, write to the Free Software
  18 dnl Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  19 dnl
  20 dnl See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  21 dnl
  22
  23 AC_DEFUN([CHECK_OPENGL],[
  24 AC_REQUIRE([AC_PROG_CC])dnl
  25 AC_REQUIRE([AC_PROG_CPP])dnl
  26 AC_REQUIRE([AC_LINKER_OPTIONS])dnl
  27
  28 AC_LANG_SAVE
  29 AC_LANG_CPLUSPLUS
  30
  31 AC_ARG_WITH(opengl,
  32   [AC_HELP_STRING([--with-opengl=DIR],[root directory path of OpenGL installation])],
  33   [opengl_dir="$withval"],
  34   [dirs="/usr/lib64 /usr/lib /usr/local/lib64 /usr/local/lib /opt/graphics/OpenGL/lib64 /opt/graphics/OpenGL/lib /usr/openwin/lib64 /usr/openwin/lib /usr/X11R6/lib64 /usr/X11R6/lib"])dnl
  35
  36 AC_CHECKING(for OpenGL)
  37 AC_CHECKING(for OpenGL headers)
  38
  39 OGL_INCLUDES=""
  40 OGL_LIBS=""
  41
  42 GL_LIB_PATH=""
  43 GLU_LIB_PATH=""
  44
  45 OpenGL_ok=no
  46 OpenGL_libs_ok=no
  47 OpenGL_headers_ok=no
  48
  49 dnl openGL headers
  50 # by default
  51 if test "x${opengl_dir}" != "x" ; then
  52   AC_MSG_RESULT(for opengl_dir: $opengl_dir)
  53   AC_CHECK_HEADER([${opengl_dir}/include/GL/gl.h],
  54                   [OpenGL_headers_ok=yes; OGL_INCLUDES="-I${opengl_dir}/include"],
  55                   [OpenGL_headers_ok=no])
  56   if test "x${OpenGL_headers_ok}" = "xyes" ; then
  57     AC_CHECKING(for default OpenGL library)
  58     if test "x${opengl_dir}" = "x/usr" ; then
  59       OGL_LIBS=""
  60     else
  61       OGL_LIBS="-L${opengl_dir}/lib"
  62     fi
  63     LDFLAGS_old="$LDFLAGS"
  64     LDFLAGS="$LDFLAGS $OGL_LIBS"
  65     AC_CHECK_LIB([GL],
  66                  [glBegin],
  67                  [OpenGL_libs_ok=yes],
  68                  [OpenGL_libs_ok=no])
  69     if test "x${OpenGL_libs_ok}" = "xyes" ; then
  70       AC_TRY_LINK([],
  71                   [],
  72                   [OpenGL_libs_ok=yes ; OpenGL_ok=yes; OGL_LIBS="$OGL_LIBS -lGL"],
  73                   [OpenGL_libs_ok=no])
  74     fi
  75     LDFLAGS="$LDFLAGS_old"
  76   fi
  77 fi
  78
  79 if test "x${OpenGL_headers_ok}" = "xno" ; then
  80   AC_CHECK_HEADER(GL/gl.h,
  81                   [OpenGL_headers_ok=yes],
  82                   [OpenGL_headers_ok=no])
  83 fi
  84
  85 # under SunOS ?
  86 if test "x${OpenGL_headers_ok}" = "xno" ; then
  87   AC_CHECK_HEADERS(/usr/openwin/share/include/GL/glxmd.h,
  88                   [OpenGL_headers_ok=yes; OGL_INCLUDES="-I/usr/openwin/share/include/"],
  89                   [OpenGL_headers_ok=no])
  90 fi
  91
  92 # under IRIX ?
  93 if test "x${OpenGL_headers_ok}" = "xno" ; then
  94   AC_CHECK_HEADERS(/opt/graphics/OpenGL/include/GL/glxmd.h,
  95                   [OpenGL_headers_ok=yes; OGL_INCLUDES="-I/opt/graphics/OpenGL/include"],
  96                   [OpenGL_headers_ok=no])
  97 fi
  98
  99 # some linux OpenGL servers hide the includes in /usr/X11R6/include/GL
 100 if test "x${OpenGL_headers_ok}" = "xno" ; then
 101   AC_CHECK_HEADERS(/usr/X11R6/include/GL/gl.h,
 102                   [OpenGL_headers_ok=yes; OGL_INCLUDES="-I/usr/X11R6/include"],
 103                   [OpenGL_headers_ok=no])
 104 fi
 105
 106 if test "x${OpenGL_headers_ok}" = "xyes" ; then
 107   AC_CHECKING(for OpenGL library)
 108   for idir in $dirs; do
 109     if test -r "${idir}/libGL.so"; then
 110       AC_MSG_RESULT(in ${idir})
 111       if test "x${idir}" = "x/usr/lib64" -o "x${idir}" = "x/usr/lib" ; then
 112         GL_LIB_PATH=""
 113       else
 114         GL_LIB_PATH="-L${idir}"
 115       fi
 116       break
 117     fi
 118     # under IRIX ?
 119     if test -r "${idir}/libGL.sl"; then
 120       AC_MSG_RESULT(in ${idir})
 121       if test "x${idir}" = "x/usr/lib64" -o "x${idir}" = "x/usr/lib" ; then
 122         GL_LIB_PATH=""
 123       else
 124         GL_LIB_PATH="-L${idir}"
 125       fi
 126       break
 127     fi
 128   done
 129   LDFLAGS_old="${LDFLAGS}"
 130   LDFLAGS="${LDFLAGS} ${GL_LIB_PATH}"
 131   AC_CHECK_LIB([GL],
 132                [glBegin],
 133                [OpenGL_libs_ok=yes],
 134                [OpenGL_libs_ok=no])
 135   if test "x${OpenGL_libs_ok}" = "xyes" ; then
 136     AC_TRY_LINK([],
 137                 [],
 138                 [OpenGL_libs_ok=yes ; OGL_LIBS="${OGL_LIBS} ${GL_LIB_PATH} -lGL"],
 139                 [OpenGL_libs_ok=no])
 140   fi
 141   LDFLAGS="$LDFLAGS_old"
 142 fi
 143
 144 if test "x${OpenGL_libs_ok}" = "xyes" ; then
 145   for idir in $dirs; do
 146     if test -r "${idir}/libGLU.so"; then
 147       AC_MSG_RESULT(in ${idir})
 148       if test "x${idir}" = "x/usr/lib64" -o "x${idir}" = "x/usr/lib" ; then
 149         GLU_LIB_PATH=""
 150       else
 151         GLU_LIB_PATH="-L${idir}"
 152       fi
 153       break
 154     fi
 155     # under IRIX ?
 156     if test -r "${idir}/libGLU.sl"; then
 157       AC_MSG_RESULT(in ${idir})
 158       if test "x${idir}" = "x/usr/lib64" -o "x${idir}" = "x/usr/lib" ; then
 159         GLU_LIB_PATH=""
 160       else
 161         GLU_LIB_PATH="-L${idir}"
 162       fi
 163       break
 164     fi
 165   done
 166
 167   # workaround a problem with libGL library location
 168   for idir in $dirs; do
 169     if test -r "${idir}/libGLU.la"; then
 170       GLU_LA_PATH="${idir}/libGLU.la"
 171       GL_LA_PATH_TO_CHECK=`cat ${GLU_LA_PATH} | awk '{ for(i=1;i<NF;i++){ if(gsub("libGL.la","&",$i)>0) print $i } }'`
 172       if test -z ${GL_LA_PATH_TO_CHECK} || test -r ${GL_LA_PATH_TO_CHECK}; then
 173         # nothing to do
 174         break
 175       fi
 176       for jdir in $dirs; do
 177         if test -r "${jdir}/libGL.la"; then
 178           GL_LA_PATH="${jdir}/libGL.la"
 179           # copy the libGLU.la file and set correct libGL.la path in it
 180           NEW_GLU_LA_PATH=${ROOT_BUILDDIR}
 181           NEW_GLU_LA_FILE="${NEW_GLU_LA_PATH}/libGLU.la"
 182           sed -e "s%${GL_LA_PATH_TO_CHECK}%${GL_LA_PATH}%" ${GLU_LA_PATH} > "${NEW_GLU_LA_FILE}"
 183           chmod -f --reference=${GLU_LA_PATH} "${NEW_GLU_LA_FILE}"
 184           # set a new libGLU.la path
 185           GLU_LIB_PATH="-L${NEW_GLU_LA_PATH}"
 186           # create a simbolic link to libGLU.so
 187           for kdir in $dirs; do
 188             if test -r "${kdir}/libGLU.so"; then
 189               cp -fs "${kdir}/libGLU.so" "${NEW_GLU_LA_PATH}/libGLU.so"
 190               break
 191             fi
 192           done
 193           break
 194         fi
 195       done
 196       break
 197     fi
 198   done
 199
 200   LDFLAGS_old="${LDFLAGS}"
 201   LDFLAGS="${LDFLAGS} ${OGL_LIBS} ${GLU_LIB_PATH}"
 202   AC_CHECK_LIB([GLU],
 203                [gluBeginSurface],
 204                [OpenGL_libs_ok=yes],
 205                [OpenGL_libs_ok=no])
 206   if test "x${OpenGL_libs_ok}" = "xyes" ; then
 207     AC_TRY_LINK([],
 208                 [],
 209                 [OpenGL_libs_ok=yes ; OGL_LIBS="${OGL_LIBS} ${GLU_LIB_PATH} -lGLU"],
 210                 [OpenGL_libs_ok=no])
 211   fi
 212   LDFLAGS="$LDFLAGS_old"
 213 fi
 214
 215 if test "x${OpenGL_headers_ok}" = "xyes" ; then
 216   if test "x${OpenGL_libs_ok}" = "xyes" ; then
 217     OpenGL_ok=yes
 218   fi
 219 fi
 220
 221 AC_MSG_RESULT(for OpenGL_headers_ok: $OpenGL_headers_ok)
 222 AC_MSG_RESULT(for OpenGL_libs_ok: $OpenGL_libs_ok)
 223 AC_MSG_RESULT(for OpenGL_ok: $OpenGL_ok)
 224
 225 AC_SUBST(OGL_INCLUDES)
 226 AC_SUBST(OGL_LIBS)
 227
 228 AC_LANG_RESTORE
 229
 230 ])dnl
 231