Prevent cmake invocation from hanging on Ubuntu 17.10
Prevent cmake invocation from hanging on Ubuntu 17.10

Looks like soapcpp2 no longer includes version number
when passing -help, and hangs when passing "-v",
which is the fallback for Mac OS.. argh.

cern-it-sdc-id/davix,cern-it-sdc-id/davix,cern-it-sdc-id/davix,cern-it-sdc-id/davix