#IFSAME !1 ON
#SET ZL$ (!Zl & 6) // strip bit 1
#REM STRICT COMPILER WARNINGS ON
#ELSE
#IFSAME !1 OFF
#SET ZL$ (!Zl | 1) // add bit 1
#REM STRICT COMPILER WARNINGS OFF
#ELSE
#IFSAME !1 OLD
#SET ZL$ (!Zl | 2) // add bit 2
#REM OLD STYLE COMPILER CHECKING ON (written to .prn file)
#ELSE
#SET ZL$ (!Zl & 5) // strip bit 2
#REM OLD STYLE COMPILER CHECKING OFF
#ENDIF
#ENDIF
#ENDIF