PatR 9c71b7dc4a Unix 'make clean' bit ...

When deleting obsolete generated files (monstr.c, vis_tab.[ch])
for src 'make clean' or clean called from src 'make spotless' or
from top Makefile, don't complain if they aren't present.

Deletion failure wasn't stopping 'make' but did result in looking
like something might be wrong.
Before:
 rm monstr.c vis_tab.c ../include/vis_tab.h  #obsolete generated files
 rm: monstr.c: No such file or directory
 rm: vis_tab.c: No such file or directory
 rm: ../include/vis_tab.h: No such file or directory
 make[1]: [clean] Error 1 (ignored)
After:
 rm -f monstr.c vis_tab.c ../include/vis_tab.h #obsolete generated files
(no extra feedback from rm or make).

2021-07-22 08:32:25 -07:00

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