https://cygwin.com/pipermail/cygwin/2004-January/111762.html
Compile dclock fails
compiledclockfails
https://dclock.macupdate.com/
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for macdownloaddclockmacupdate
https://cygwin.com/pipermail/cygwin/1998-February/009197.html
Ports: bc, dclock, xeyes, xmessgae, xv, sc, xspread, strn
portsbcdclockxeyesxv