The variable
*record-source-files*
controls whether locations of definitions are recorded in the internal tags database.
*record-source-files*
was documented in the
lispworks
package in LispWorks 4.3 and earlier. Although it is currently still available there, this may change in future releases and you should now reference it via the
dspec
package.
LispWorks User Guide and Reference Manual - 21 Dec 2011