[perl-Cairo] Hush a compiler warning

[Torsten Schönfeld <tsch src gnome org>]

commit cc7b961baded8707231456a573a2b44576255322
Author: Torsten Schönfeld <kaffeetisch gmx de>
Date:   Sat Apr 30 18:46:57 2011 +0200

    Hush a compiler warning

 CairoFt.xs |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/CairoFt.xs b/CairoFt.xs
index 2400cb6..90ba9ba 100644
--- a/CairoFt.xs
+++ b/CairoFt.xs
@@ -7,6 +7,7 @@
  */
 
 #include <cairo-perl.h>
+#include <cairo-perl-private.h>
 
 static const cairo_user_data_key_t face_key;