
Soon we will add proxy support where VPN plugins set a property NM_VPN_PLUGIN_CONFIG_PROXY_PAC. All a VPN plugin needs to make use of this new setting is the NM_VPN_PLUGIN_CONFIG_PROXY_PAC define. We don't want that older plugins (still compatible with libnm 1.2 API) require a new API only for this define. Define it instead in "shared/nm-utils/nm-vpn-plugin-macros.h" as fallback. https://mail.gnome.org/archives/networkmanager-list/2016-June/msg00154.html