[network-manager-vpnc] build: really fix linking against libdl.so for dlopen()

[Thomas Haller <thaller src gnome org>]

commit 8bcda6f370b79dc57d354ee8f6738d4c0763faf6
Author: Thomas Haller <thaller redhat com>
Date:   Wed Sep 7 18:56:34 2016 +0200

    build: really fix linking against libdl.so for dlopen()
    
    Fixes: bc2d3a861b231db4617e28c98e41407c26877eec

 properties/Makefile.am |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/properties/Makefile.am b/properties/Makefile.am
index a43ff45..ca7178d 100644
--- a/properties/Makefile.am
+++ b/properties/Makefile.am
@@ -51,7 +51,7 @@ libnm_vpn_plugin_vpnc_la_CFLAGS = \
 
 libnm_vpn_plugin_vpnc_la_LIBADD = \
     $(LIBNM_LIBS) \
-    $(LD_LIBS) \
+    $(DL_LIBS) \
     $(NULL)
 
 libnm_vpn_plugin_vpnc_la_LDFLAGS = \