salome_adm/unix/config_files/check_opengl.m4

   1 AC_DEFUN([CHECK_OPENGL],[
   2 AC_REQUIRE([AC_PROG_CC])dnl
   3 AC_REQUIRE([AC_PROG_CPP])dnl
   4 AC_ARG_WITH(opengl,
   5    [  --with-opengl=DIR root directory path of OpenGL installation ],
   6    [
   7       opengl_dir="$withval"
   8       local_opengl=yes
   9     ], [
  10       dirs="/usr/lib /usr/local/lib /opt/graphics/OpenGL/lib /usr/openwin/lib /usr/X11R6/lib"
  11     ])dnl
  12
  13 AC_CHECKING(for OpenGL)
  14
  15 AC_SUBST(OGL_INCLUDES)
  16 AC_SUBST(OGL_LIBS)
  17
  18 OGL_INCLUDES=""
  19 OGL_LIBS=""
  20
  21 OpenGL_ok=no
  22
  23 dnl openGL headers
  24
  25 # by default
  26
  27 if test "x$local_opengl" = "xyes" ; then
  28    if test -f "${opengl_dir}/include/GL/gl.h" ; then
  29       OpenGL_ok=yes
  30       OGL_INCLUDES="-I${opengl_dir}/include"
  31       OGL_LIBS="-L${opengl_dir}/lib"
  32       AC_MSG_RESULT(select OpenGL distribution in ${opengl_dir})
  33    else
  34       AC_MSG_RESULT(no gl.h header file in ${opengl_dir}/include/GL)
  35    fi
  36 fi
  37
  38 if  test "x$OpenGL_ok" = "xno"
  39 then
  40   AC_CHECK_HEADERS(GL/gl.h, [OpenGL_ok=yes])
  41 fi
  42
  43 if  test "x$OpenGL_ok" = "xno"
  44 then
  45 # under SunOS ?
  46   AC_CHECK_HEADERS(/usr/openwin/share/include/GL/glxmd.h,
  47                   [OpenGL_ok=yes]
  48                   OGL_INCLUDES="-I/usr/openwin/share/include/")
  49 fi
  50
  51 if  test "x$OpenGL_ok" = "xno"
  52 then
  53 # under IRIX ?
  54   AC_CHECK_HEADERS(/opt/graphics/OpenGL/include/GL/glxmd.h,
  55                   [OpenGL_ok=yes]
  56                   OGL_INCLUDES="-I/opt/graphics/OpenGL/include")
  57 fi
  58 if  test "x$OpenGL_ok" = "xno"
  59 then
  60 # some linux OpenGL servers hide the includes in /usr/X11R6/include/GL
  61   AC_CHECK_HEADERS(/usr/X11R6/include/GL/gl.h,
  62                   [OpenGL_ok=yes]
  63                   OGL_INCLUDES="-I/usr/X11R6/include")
  64 fi
  65
  66 if  test "x$OpenGL_ok" = "xyes"
  67 then
  68   AC_CHECKING(for OpenGL library)
  69   OpenGL_ok=no
  70   for i in $dirs; do
  71     if test -r "$i/libGL.so"; then
  72 dnl      AC_MSG_RESULT(in $i)
  73       OGL_LIBS="-L$i"
  74       break
  75     fi
  76 # under IRIX ?
  77     if test -r "$i/libGL.sl"; then
  78 dnl      AC_MSG_RESULT(in $i)
  79       OGL_LIBS="-L$i"
  80       break
  81     fi
  82   done
  83   LDFLAGS_old="$LDFLAGS"
  84   LDFLAGS="$LDFLAGS $OGL_LIBS"
  85   AC_CHECK_LIB(GL,glBegin,OpenGL_ok=yes,OpenGL_ok=no)
  86   LDFLAGS="$LDFLAGS_old"
  87 fi
  88
  89 if test "x$OpenGL_ok" = "xyes" ; then
  90   OGL_LIBS="$OGL_LIBS -lGL"
  91 fi
  92
  93
  94 OpenGLU_ok=no
  95 LDFLAGS_old="$LDFLAGS"
  96 LDFLAGS="$LDFLAGS $OGL_LIBS"
  97 AC_CHECK_LIB(GLU,gluBeginSurface,OpenGLU_ok=yes,OpenGLU_ok=no)
  98 LDFLAGS="$LDFLAGS_old"
  99
 100 if test "x$OpenGLU_ok" = "xyes" ; then
 101   OGL_LIBS="$OGL_LIBS -lGLU"
 102 fi
 103
 104 # Save cache
 105 AC_CACHE_SAVE
 106
 107 ])dnl