Vinagre can not be compiled against FreeRDP 2.0
There seems to be a patch available for the arch package: https://git.archlinux.org/svntogit/packages.git/plain/trunk/freerdp2017.diff?h=packages/vinagre
There seems to be a patch available for the arch package: https://git.archlinux.org/svntogit/packages.git/plain/trunk/freerdp2017.diff?h=packages/vinagre