finish Makefile fix of 1989/tromp

1989/tromp/Makefile

@@ -408,7 +408,9 @@ CC= cc
 #
 ifeq ($(CC),clang)
 #
-#CSILENCE+=
+CSILENCE+= -Wno-comma -Wno-format-nonliteral -Wno-missing-prototypes \
+	-Wno-missing-variable-declarations -Wno-pedantic \
+	-Wno-poison-system-directories -Wno-strict-prototypes
 #
 CWARN+= -Weverything
 #
@@ -436,8 +438,8 @@ OBJ= ${PROG}.o
 DATA=
 TARGET= ${PROG}
 #
-ALT_OBJ= ${PROG}.orig.o
-ALT_TARGET= ${PROG}.orig
+ALT_OBJ=
+ALT_TARGET=
 
 
 #################
@@ -460,10 +462,6 @@ ${PROG}: ${PROG}.c
 alt: data ${ALT_TARGET}
 	@${TRUE}
 
-${PROG}.orig: ${PROG}.orig.c
-	@echo "NOTE: The original source may not compile using modern compilers."
-	${CC} ${CFLAGS} $< -o $@ ${LIBS}
-
 # data files
 #
 data: ${DATA}

1989/tromp/README.md

@@ -10,6 +10,8 @@
 
         make all
 
+	NOTE: This entry may not compile when using modern compilers.
+
 ### To run
 
 	./tromp [drops_per_sec  [cmd_string]]