rxvt-unicode: added unicode3 build option

srcpkgs/rxvt-unicode/template

@@ -1,7 +1,7 @@
 # Template build file for 'rxvt-unicode'.
 pkgname=rxvt-unicode
 version=9.19
-revision=3
+revision=5
 build_style=gnu-configure
 configure_args="
  --with-terminfo=/usr/share/terminfo --enable-256-color
@@ -24,10 +24,11 @@ post_install() {
 }
 
 # Package build options
-build_options="gdk_pixbuf perl startup_notification"
+build_options="gdk_pixbuf perl startup_notification unicode3"
 desc_option_gdk_pixbuf="Enable support to use transparency via gdk-pixbuf"
 desc_option_perl="Enable support for perl bindings"
 desc_option_startup_notification="Enable support for desktop notification"
+desc_option_unicode3="Use 21 instead of 16 bits to represent unicode chars"
 
 # Enable startup-notification by default.
 build_options_default="startup_notification"
@@ -52,3 +53,9 @@ if [ "$build_option_startup_notification" ]; then
 else
 	configure_args+=" --disable-startup-notification"
 fi
+
+if [ "$build_option_unicode3" ]; then
+	configure_args+=" --enable-unicode3"
+else
+	configure_args+=" --disable-unicode3"
+fi