[lightsoff] configure: check for librsvg

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 771b218cc098f7e6024265fa71d196cee14bcf50
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Thu May 8 11:14:28 2014 -0500

    configure: check for librsvg

 configure.ac |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 2f07357..ed49b0c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -18,11 +18,13 @@ dnl ###########################################################################
 GTK_REQUIRED=3.10.0
 CLUTTER_REQUIRED=1.14.0
 CLUTTER_GTK_REQUIRED=1.5.0
+RSVG_REQUIRED=2.32.0
 
 PKG_CHECK_MODULES(LIGHTSOFF, [
   gtk+-3.0 >= $GTK_REQUIRED
   clutter-1.0 >= $CLUTTER_REQUIRED
   clutter-gtk-1.0 >= $CLUTTER_GTK_REQUIRED
+  librsvg-2.0 >= $RSVG_REQUIRED
 ])
 
 AC_CHECK_LIB([m],[floor])