diff -uprN libvisual-plugins-0.4.0/configure.ac libvisual-plugins-0.4.0-new/configure.ac
--- libvisual-plugins-0.4.0/configure.ac	2006-03-17 00:50:41.000000000 +0800
+++ libvisual-plugins-0.4.0-new/configure.ac	2009-09-24 11:12:08.703111973 +0800
@@ -160,15 +160,22 @@ AM_CONDITIONAL(HAVE_X, test "$have_x" = 
 
 dnl OpenGL, GLX
 HAVE_OPENGL=no
+AC_ARG_ENABLE([opengl],
+  AS_HELP_STRING([--disable-opengl],
+    [Do not build OpenGL plugin @<:@default=enabled@:>@]),
+  [ENABLE_OPENGL=$enableval],
+  [ENABLE_OPENGL=yes])
+
+if test "$ENABLE_OPENGL" = "yes"; then
+  if test "$have_x" = "yes" ; then
+    CPPFLAGS_SAVE=$CPPFLAGS
+    CPPFLAGS="$CPPFLAGS $X_CFLAGS"
 
-if test "$have_x" = "yes" ; then
-  CPPFLAGS_SAVE=$CPPFLAGS
-  CPPFLAGS="$CPPFLAGS $X_CFLAGS"
+    AC_CHECK_HEADERS([GL/gl.h GL/glx.h],
+      [AC_CHECK_LIB([GL], [glBegin], [HAVE_OPENGL=yes], [], [$X_LIBS])])
 
-  AC_CHECK_HEADERS([GL/gl.h GL/glx.h],
-    [AC_CHECK_LIB([GL], [glBegin], [HAVE_OPENGL=yes], [], [$X_LIBS])])
-
-  CPPFLAGS=$CPPFLAGS_SAVE
+    CPPFLAGS=$CPPFLAGS_SAVE
+  fi
 fi
 
 AM_CONDITIONAL([HAVE_OPENGL], [test "$HAVE_OPENGL" = "yes"])