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).

diff --git a/sys/unix/Makefile.src b/sys/unix/Makefile.src
index e93c5e208974e5ef2d7b0ff3cedce38d80137be5..f52e9c9bedc8738653c2cba478e41a8174012126 100644 (file)
--- a/sys/unix/Makefile.src
+++ b/sys/unix/Makefile.src
@@ -1,5 +1,5 @@
 #      NetHack Makefile.
-# NetHack 3.7  Makefile.src    $NHDT-Date: 1612127122 2021/01/31 21:05:22 $  $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.122 $
+# NetHack 3.7  Makefile.src    $NHDT-Date: 1626967328 2021/07/22 15:22:08 $  $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.128 $
 # Copyright (c) 2018 by Pasi Kallinen
 # NetHack may be freely redistributed.  See license for details.
 
@@ -754,7 +754,7 @@ tags: $(CSOURCES)
 
 clean:
        -rm -f *.o $(HACK_H) $(CONFIG_H)
-       -rm monstr.c vis_tab.c ../include/vis_tab.h  #obsolete generated files
+       -rm -f monstr.c vis_tab.c ../include/vis_tab.h #obsolete generated files
        $(CLEANMORE)
 
 spotless: clean