[nautilus-sendto] Fix building with new gupnp stack

[Andreas Henriksson <ah src gnome org>]

commit c001500a185fc0e7082d2495b83456b5cc298abd
Author: Andreas Henriksson <andreas fatal se>
Date:   Wed Oct 10 13:29:32 2012 +0200

    Fix building with new gupnp stack
    
    Since gupnp 0.19.0, internal linker flags are no longer leaked
    to users of this library.
    This means applications need to link to all libraries
    that it uses directly, and nautilus-sendto uses symbols
    from gssdp so should link to it.

 configure.in |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.in b/configure.in
index 499d4ff..43d0214 100644
--- a/configure.in
+++ b/configure.in
@@ -176,7 +176,7 @@ for plugin in ${used_plugins}; do
 			fi
 		;;
 		upnp)
-			PKG_CHECK_MODULES(UPNP, gupnp-1.0 >= $GUPNP_REQUIRED libpeas-1.0,
+			PKG_CHECK_MODULES(UPNP, gssdp-1.0 gupnp-1.0 >= $GUPNP_REQUIRED libpeas-1.0,
 					  enable_upnp=yes, enable_upnp=no)
 			if test "${enable_upnp}" != "yes" ; then
 				plugin_error_or_ignore "you need gupnp installed for the upnp plugin"