if test "x$HOSTTYPE" != "xmacintosh" -a "x$is_mingw" != "xyes"; then
dnl extra library and include directories
- EXTRA_DIRS="/usr/local /usr/X11R6"
+ EXTRA_DIRS="/usr/X11R6"
if test -d /opt/X11R6 ; then
EXTRA_DIRS="$EXTRA_DIRS /opt/X11R6"
dnl check for OpenGL related libraries
+AM_CONDITIONAL(EXTGL_NEEDED, test "x$ac_cv_header_windows_h" = "xyes")
+
if test "x$HOSTTYPE" = "xmacintosh" ; then
dnl Macintosh OSX
LIBS="$LIBS -framework OpenGL -framework GLUT"