[gupnp] Add missing macro to set $target_os

[Jasper Lievisse Adriaanse <jasperla src gnome org>]

commit 57821334b729a66fbcfddfd7fc687d67ec4b1fdd
Author: Jasper Lievisse Adriaanse <jasper humppa nl>
Date:   Mon Jul 4 11:28:44 2011 +0200

    Add missing macro to set $target_os

 configure.ac |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index f4f67b3..0645d2f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -25,6 +25,7 @@ LT_PREREQ([2.2])
 LT_INIT
 
 AC_CANONICAL_HOST
+AC_CANONICAL_TARGET
 
 AC_MSG_CHECKING([operating system])
 case "$target_os" in