-Of these, the most mystifying are from the assembler,
-.IR as (1),
-in particular `m', which means
-a multiply-defined external symbol (function
-or data).
-.SH BUGS
-.I Pcc
-is little tried on the PDP11; specialized
-code generated for that machine has not been
-well shaken down.
-The
-.B \-O
-optimizer was designed to work with
-.IR cc ;
-its use with
-.I pcc
-is suspect.