btxld(8) on FreeBSD
The text f2c9ea7049bd, as FreeBSD 5.5-RELEASE, FreeBSD 5.4-RELEASE, FreeBSD 5.3-RELEASE shipped it.
link editor for BTX clients
Flags it lists
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-E -
-P -
-W -
-b -
-e -
-f -
-l -
-o -
-q -
-v