nmcoll - find name collisions in object files (2BSD)
nmcoll file ...
Nmcoll scans a set of object files as produced by the assembler (typically ending with .o) and produces a listing of suspicious name dupli-
cations. Nmcoll is useful when porting programs that were developed with compilers that support flex (long) names to 2.11BSD which only
supports seven significant characters in external names.
Nmcoll is a carryover from the era before longer symbol names were supported in object files.