CC = gcc
CFLAGS = -std=c11 -Wall -g
TARGETS = 01-typedef 02-fnPtr 03-enum  06-maxTyped
ALLTARGETS = ${TARGETS} 04-max 05-externalDef

all: ${ALLTARGETS}

# generic build rule
${TARGETS}: % : %.c
	-${CC} ${CFLAGS} $@.c -o $@

# a special case so we can generate preprocessor output file
04-max:  04-max.c 04-max.h
	${CC} ${CFLAGS} 04-max.c -o 04-max
	cpp 04-max.c >04-max.preproc
	echo created preprocessor output file 04-max.preproc

05-externalDef: 05-externalDef.c
	@echo "\nFirst compile without defining VALUE"
	-${CC} ${CFLAGS} 05-externalDef.c -o 05-externalDef
	@echo "\nNow defining VALUE as part of the compile command"
	${CC} ${CFLAGS} -DVALUE=25 05-externalDef.c -o 05-externalDef

clean:
	rm -f *~ *.o *.preproc ${ALLTARGETS}