[libvirt] [PATCH] Automagically check if libssh2 is new enough for Phyp-support to be build

Hi! My buildbot spotted a problem with the latest changes to Phyp, as the function libssh2_session_block_directions() only is available with libssh2 version 1.0 and later. At least on Debian Lenny there is an older one which prevents libVirt from building, so I updated the configure.in script to add another piece of magic (and thereby fixed the indenation of the Phypchecks). See attached patch. Ciao Max -- "really soon now": an unspecified period of time, likly to be greater than any reasonable definition of "soon".