🚀 go-pugleaf

This problem is with make 3.62 running on AIX 3.2.2

Problem:  improper expansion of "$<" when using the following makefile.

---

CC = gcc
CFLAGS = -g -Wall
LIBS = -lm
PROG = lfa_null

OBJS = lfan_main.o lfan_track.o lfan_bf.o tb_bf.o
SOURCES = lfan_main.c lfan_track.c lfan_bf.c tb_bf.c
INCLUDES = lfa_null.h tb.h

all: $(PROG)

$(PROG): $(OBJS)
	$(CC) $(CFLAGS) -o $@ $(OBJS) $(LIBS)

$(OBJS): $(SOURCES) $(INCLUDES)
	$(CC) $(CFLAGS) -c $<

---

Below is a script illustrating the problem.
/bin/make is the default AIX make
/usr/local/gnu/make is gnu make 3.62

---

$ /bin/make -n

gcc -g -Wall -c lfan_main.c
gcc -g -Wall -c lfan_track.c
gcc -g -Wall -c lfan_bf.c
gcc -g -Wall -c tb_bf.c
gcc -g -Wall -o lfa_null lfan_main.o lfan_track.o lfan_bf.o tb_bf.o -lm

$ /usr/local/gnu/make -n

gcc -g -Wall -c lfan_main.c
gcc -g -Wall -c lfan_main.c
gcc -g -Wall -c lfan_main.c
gcc -g -Wall -c lfan_main.c
gcc -g -Wall -o lfa_null lfan_main.o lfan_track.o lfan_bf.o tb_bf.o -lm

---

Below is a script of what happens when the files must be retrieved
with RCS.  Note, it retrieves all of the correct files, but still only
tries to compile the first file in OBJS

---

$ /usr/local/gnu/make -n

test -f lfan_main.c || co  RCS/lfan_main.c,v lfan_main.c
test -f lfan_track.c || co  RCS/lfan_track.c,v lfan_track.c
test -f lfan_bf.c || co  RCS/lfan_bf.c,v lfan_bf.c
test -f tb_bf.c || co  RCS/tb_bf.c,v tb_bf.c
test -f lfa_null.h || co  RCS/lfa_null.h,v lfa_null.h
test -f tb.h || co  RCS/tb.h,v tb.h
gcc -g -Wall -c lfan_main.c
gcc -g -Wall -c lfan_main.c
gcc -g -Wall -c lfan_main.c
gcc -g -Wall -c lfan_main.c
gcc -g -Wall  -o lfa_null lfan_main.o lfan_track.o lfan_bf.o tb_bf.o -lm

---

George Scott
gms2@po.cwru.edu
gscott@manvm1.vnet.ibm.com