Fetch it here in both x86/x64 https://lftp.nwgat.ninja/lftp-4.7.7/
without further ado, here is a overview Setup Deluge Headless (Torrent Client) apt-get install software-properties-common -y && add-apt-repository ppa:deluge-team/ppa apt-get update &
Looks like the compile issues has been ironed out, finally compiling again under cygwin Download: choco install lftp -version 4.7.5 lftp-4.7.5.
grab it here https://nwgat.ninja/lftp-for-windows/ or from chocolately choco install lftp --version 4.6.5
Compiling lftp under cygwin is actually pretty simple when you use chocolately and cygwin and know what packages you need Install cygwin, cygwin packages via