all: myapp# Which compilerCC=gcc# Where to installINSTDIR=/usr/local/bin# Where are include files keptINCLUDE=.# Options for developmentCFLAGS=-g -Wall -ansi# Options for release# CFLAGS=-O -Wall -ansi# Local LibrariesMYLIB=mylib.amyapp: main.o $(MYLIB)	$(CC) -o myapp main.o $(MYLIB)$(MYLIB): $(MYLIB)(2.o) $(MYLIB)(3.o)main.o: main.c a.h2.o: 2.c a.h b.h3.o: 3.c b.h c.hclean:	-rm main.o 2.o 3.o $(MYLIB)install: myapp	@if [ -d $(INSTDIR) ]; \		then \		cp myapp $(INSTDIR);\		chmod a+x $(INSTDIR)/myapp;\		chmod og-w $(INSTDIR)/myapp;\		echo "Installed in $(INSTDIR)";\	else \		echo "Sorry, $(INSTDIR) does not exist";\	fi