Resync with glib-networking's configure.ac check for GTLS_SYSTEM_CA_FILE
Resync with glib-networking's configure.ac check for GTLS_SYSTEM_CA_FILE

Ziemin/telepathy-gabble,Ziemin/telepathy-gabble,jku/telepathy-gabble,jku/telepathy-gabble,mlundblad/telepathy-gabble,mlundblad/telepathy-gabble,mlundblad/telepathy-gabble,Ziemin/telepathy-gabble,Ziemin/telepathy-gabble,jku/telepathy-gabble