diff --git a/1986/bright/Makefile b/1986/bright/Makefile
index a33761e5c..789991f75 100644
--- a/1986/bright/Makefile
+++ b/1986/bright/Makefile
@@ -126,8 +126,8 @@ OBJ= ${PROG}.o
 DATA=
 TARGET= ${PROG}
 #
-ALT_OBJ= ${PROG}.orig.o
-ALT_TARGET= ${PROG}.orig
+ALT_OBJ=
+ALT_TARGET=
 
 
 #################
diff --git a/1986/stein/Makefile b/1986/stein/Makefile
index 9df743403..eec931eb3 100644
--- a/1986/stein/Makefile
+++ b/1986/stein/Makefile
@@ -122,8 +122,8 @@ OBJ= ${PROG}.o
 DATA=
 TARGET= ${PROG}
 #
-ALT_OBJ= ${PROG}.orig.o
-ALT_TARGET= ${PROG}.orig
+ALT_OBJ=
+ALT_TARGET=
 
 
 #################
@@ -142,13 +142,6 @@ ${PROG}: ${PROG}.c
 	${CC} ${CFLAGS} $< -o $@ ${LIBS}
 	-${LN} $@ a.out
 
-
-${PROG}.orig: ${PROG}.orig.c
-	@echo "NOTE: The original source might not compile using modern compilers."
-	-${RM} -f a.out
-	${CC} ${CFLAGS} $< -o $@ ${LIBS}
-	-${LN} $@ a.out
-
 # data files
 #
 data: ${DATA}
diff --git a/1987/heckbert/Makefile b/1987/heckbert/Makefile
index 0611220da..1098c5650 100644
--- a/1987/heckbert/Makefile
+++ b/1987/heckbert/Makefile
@@ -123,8 +123,8 @@ OBJ= ${PROG}.o
 DATA=
 TARGET= ${PROG}
 #
-ALT_OBJ= ${PROG}.orig.o
-ALT_TARGET= ${PROG}.orig
+ALT_OBJ=
+ALT_TARGET=
 
 
 #################
diff --git a/1989/fubar/Makefile b/1989/fubar/Makefile
index 2d269ac02..706a7d918 100644
--- a/1989/fubar/Makefile
+++ b/1989/fubar/Makefile
@@ -151,11 +151,6 @@ alt: data ${ALT_TARGET}
 data: ${DATA}
 	@${TRUE}
 
-${PROG}.orig: ${PROG}.orig.c
-	${RM} -f $@
-	${CP} -f fubar.orig.sh $@
-	${CHMOD} +x $@
-
 # both all and alt
 #
 everything: all alt
diff --git a/1989/jar.2/Makefile b/1989/jar.2/Makefile
index 24fb7b802..f3da6a414 100644
--- a/1989/jar.2/Makefile
+++ b/1989/jar.2/Makefile
@@ -121,8 +121,8 @@ OBJ= ${PROG}.o
 DATA=
 TARGET= ${PROG}
 #
-ALT_OBJ= ${PROG}.orig.o
-ALT_TARGET= ${PROG}.orig
+ALT_OBJ=
+ALT_TARGET=
 
 
 #################
@@ -145,10 +145,6 @@ ${PROG}: ${PROG}.c
 alt: data ${ALT_TARGET}
 	${CC} ${CFLAGS} $< -o $@ ${LIBS}
 
-${PROG}.orig: ${PROG}.orig.c
-	@echo "NOTE: The original source might not compile using modern compilers."
-	${CC} ${CFLAGS} $< -o $@ ${LIBS}
-
 # data files
 #
 data: ${DATA}