Fix windows compilation
Fix windows compilation
tcp: (Mac OS X) added setsockopt(SOL_SOCKET, SO_NOSIGPIPE) to prevent the application crashing on a broken socket.
libfreerdp-core: remove old, unused extension framework
fix: build error while running client/X11/generate_argument_docbook

Patch from Viacheslav Dubrovsk

Bug: https://github.com/FreeRDP/FreeRDP/issues/1481
Change-Id: I6372ee39af8dab201ec4891a7dbbba294cf6a7ea
Signed-off-by: Philippe Coval <philippe.coval@open.eurogiciel.org>