+#have_sgi=no
+#with_sgi_req=unspecified
+#AC_ARG_WITH(sgi-ext,
+#[Except where noted, all of the --with options below can also take a
+#directory argument: for example, `--with-motif=/opt/Motif'. That would
+#cause /opt/Motif/include/ to be added to the -I list, and /opt/Motif/lib/
+#to be added to the -L list, assuming those directories exist.
+#
+#By default, support for each of these options will be built in, if the
+#relevant library routines exist. At run time, they will then be used
+#only if the X server being used supports them. Each --with option has
+#a corresponding --without option, to override building support for them
+#at all.
+#
+#Screen blanking and idle-detection options:
+#
+# --with-sgi-ext Include support for the SGI SCREEN_SAVER extension.],
+# [with_sgi="$withval"; with_sgi_req="$withval"],[with_sgi=yes])
+#
+#HANDLE_X_PATH_ARG(with_sgi, --with-sgi-ext, SGI SCREEN_SAVER)
+#
+#if test "$with_sgi" = yes; then
+# AC_CHECK_X_HEADER(X11/extensions/XScreenSaver.h,
+# [have_sgi=yes
+# AC_DEFINE(HAVE_SGI_SAVER_EXTENSION)],,
+# [#include <X11/Xlib.h>])
+#
+#elif test "$with_sgi" != no; then
+# echo "error: must be yes or no: --with-sgi-ext=$with_sgi"
+# exit 1
+#fi
+
+
+###############################################################################
+#
+# Check for the XIDLE server extension.
+#
+###############################################################################
+
+#have_xidle=no
+#with_xidle_req=unspecified
+#AC_ARG_WITH(xidle-ext,
+#[ --with-xidle-ext Include support for the XIDLE extension.],
+# [with_xidle="$withval"; with_xidle_req="$withval"],[with_xidle=yes])
+#
+#HANDLE_X_PATH_ARG(with_xidle, --with-xidle-ext, XIDLE)
+#
+#if test "$with_xidle" = yes; then
+# AC_CHECK_X_HEADER(X11/extensions/xidle.h,
+# [have_xidle=yes
+# AC_DEFINE(HAVE_XIDLE_EXTENSION)],,
+# [#include <X11/Xlib.h>])
+#elif test "$with_xidle" != no; then
+# echo "error: must be yes or no: --with-xidle-ext=$with_xidle"
+# exit 1
+#fi
+
+
+###############################################################################
+#
+# Check for the SGI-VIDEO-CONTROL server extension.
+#
+###############################################################################
+
+#have_sgivc=no
+#with_sgivc_req=unspecified
+#AC_ARG_WITH(sgivc-ext,
+#[ --with-sgivc-ext Include support for the SGI-VIDEO-CONTROL extension.],
+# [with_sgivc="$withval"; with_sgivc_req="$withval"],[with_sgivc=yes])
+#
+#HANDLE_X_PATH_ARG(with_sgivc, --with-sgivc-ext, SGI-VIDEO-CONTROL)
+#
+#if test "$with_sgivc" = yes; then
+#
+# # first check for XSGIvc.h
+# AC_CHECK_X_HEADER(X11/extensions/XSGIvc.h, [have_sgivc=yes],,
+# [#include <X11/Xlib.h>])
+#
+# # if that succeeded, then check for the -lXsgivc
+# if test "$have_sgivc" = yes; then
+# have_sgivc=no
+# AC_CHECK_X_LIB(Xsgivc, XSGIvcQueryGammaMap,
+# [have_sgivc=yes; SAVER_LIBS="$SAVER_LIBS -lXsgivc"], [true],
+# -lXext -lX11)
+# fi
+#
+# # if that succeeded, then we've really got it.
+# if test "$have_sgivc" = yes; then
+# AC_DEFINE(HAVE_SGI_VC_EXTENSION)
+# fi
+#
+#elif test "$with_sgivc" != no; then
+# echo "error: must be yes or no: --with-sgivc-ext=$with_sgivc"
+# exit 1
+#fi
+
+
+###############################################################################
+#
+# Check for the DPMS server extension.
+#
+###############################################################################
+
+have_dpms=no
+with_dpms_req=unspecified