/usr/share/ is in cl-closure-common 20101107-1.
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/usr/share/doc/cl-closure-common/
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/usr/share/common-lisp/
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/usr/share/common-lisp/source/closure-common/
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/usr/share/common-lisp/source/closure-common/closure-common.asd
/usr/share/common-lisp/source/closure-common/syntax.lisp
/usr/share/common-lisp/systems/closure-common.asd