I forgot to use different Cygwin version numbers for the 1.5 and 1.7 versions of the latest unison* releases. Please upload new releases for 1.7, and remove the last releases, as indicated below. Thanks, Andrew.
## ## 1.7 ## cd release-2/unison wget -x -nH --cut-dirs=3 \ http://home.comcast.net/~andrex2/cygwin-1.7/unison/unison2.31/unison2.31-2.31.4-2.tar.bz2 \ http://home.comcast.net/~andrex2/cygwin-1.7/unison/unison2.31/unison2.31-2.31.4-2-src.tar.bz2 \ http://home.comcast.net/~andrex2/cygwin-1.7/unison/unison2.27/unison2.27-2.27.57-4.tar.bz2 \ http://home.comcast.net/~andrex2/cygwin-1.7/unison/unison2.27/unison2.27-2.27.57-4-src.tar.bz2 rm unison2.27/unison2.27-2.27.57-2* unison2.31/unison2.31-2.31.4-1*