; to expand from sources, the general form is:
; mp source/lm+file
; which generates source.mpp from source.mac (file.mac contains macros)
; Of course you need to build mp (see elsewhere on tape)
mac REC  ,rec /-sp/nl      =REC.mpp
mac SEND ,send/-sp/nl      =SEND.mpp
mac SND  ,snd /-sp/nl      =SND.mpp
mac TRAN ,tran/-sp/nl      =TRAN.mpp
tkb  @REC.bld
tkb  @SEND.bld
tkb  @SND.bld
tkb  @TRAN.bld
;
; if you want to install these:
;
;      ins rec/task=receiv
;      ins snd/task=sender
;      ins tran/task=trnsfr
