[common] Said of a design or revision that has been badly compromised
by a requirement to be compatible with {fossil}s or {misfeature}s in
other programs or (esp.) previous releases of itself. "MS-DOS 2.0
used \ as a path separator to be bug-compatible with some cretin's
choice of / as an option character in 1.0."
[glossary]
[Reference(s) to this entry by made by: {bug-for-bug compatible}]