+
+# VIDMODE()
+#
+# Check for the presence of the "VidMode" X Window System extension.
+# Defines "VIDMODE" and sets the $(VIDMODE) variable to "yes" if the extension
+# is present.
+AC_DEFUN([X11_EXT_VIDMODE],
+[
+ AC_REQUIRE([X11_DEVEL])
+
+ # Store these
+ OLDLIBS=$LIBS
+ OLDCPPFLAGS=$CPPFLAGS
+
+ CPPFLAGS="$CPPFLAGS $X_CFLAGS"
+ LIBS="$LIBS $X_LIBS -lXext -lXxf86vm"
+
+ AC_CHECK_LIB([Xxf86vm], [XF86VidModeGetViewPort],
+ AC_MSG_CHECKING([for X11/extensions/xf86vmode.h])
+ AC_TRY_LINK(
+ [
+ #include <X11/Xlib.h>
+ #include <X11/extensions/xf86vmode.h>
+ ],
+ [
+ Display *d;
+ int i;
+ XF86VidModeQueryExtension(d, &i, &i);
+ XF86VidModeGetViewPort(d, i, &i, &i);
+ ],
+ [
+ AC_MSG_RESULT([yes])
+ VIDMODE="yes"
+ AC_DEFINE([VIDMODE], [1], [Found the VidMode extension])
+
+ VIDMODE_CFLAGS=""
+ VIDMODE_LIBS="-lXext -lXxf86vm"
+ AC_SUBST(VIDMODE_CFLAGS)
+ AC_SUBST(VIDMODE_LIBS)
+ ],
+ [
+ AC_MSG_RESULT([no])
+ VIDMODE="no"
+ ])
+ )
+
+ LIBS=$OLDLIBS
+ CPPFLAGS=$OLDCPPFLAGS
+
+ AC_MSG_CHECKING([for the VidMode extension])
+ if test "$VIDMODE" = "yes"; then
+ AC_MSG_RESULT([yes])
+ else
+ AC_MSG_RESULT([no])
+ fi
+])
+
+# X11_SM()
+#
+# Check for the presence of SMlib for session management.
+# Defines "USE_SM" if SMlib is present.
+AC_DEFUN([X11_SM],
+[
+ AC_REQUIRE([X11_DEVEL])
+
+ AC_ARG_ENABLE([session-management],
+ [ --disable-session-management build without support for session managers],
+ [SM=$enableval], [SM="yes"])
+
+ if test "$SM" = "yes"; then
+ # Store these
+ OLDLIBS=$LIBS
+ OLDCPPFLAGS=$CPPFLAGS
+
+ CPPFLAGS="$CPPFLAGS $X_CFLAGS"
+ LIBS="$LIBS $X_LIBS"
+
+ SM="no"
+
+ AC_CHECK_LIB([SM], [SmcSaveYourselfDone], [
+ AC_CHECK_HEADERS([X11/SM/SMlib.h], [
+ SM_CFLAGS="$X_CFLAGS"
+ SM_LIBS="-lSM -lICE"
+ AC_DEFINE(USE_SM, 1, [Use session management])
+ AC_SUBST(SM_CFLAGS)
+ AC_SUBST(SM_LIBS)
+ SM="yes"
+ ])
+ ])
+ fi
+
+ LIBS=$OLDLIBS
+ CPPFLAGS=$OLDCPPFLAGS
+
+ AC_MSG_CHECKING([for session management support])
+ if test "$SM" = "yes"; then
+ AC_MSG_RESULT([yes])
+ else
+ AC_MSG_RESULT([no])
+ fi
+])