1/7/2016 - 2:02 AM

Makefile for C/C++ example

Makefile for C/C++ example

# 'make depend' uses makedepend to automatically generate dependencies 
#               (dependencies are added to end of Makefile)
# 'make'        build executable file 'mycc'
# 'make clean'  removes all .o and executable files

# define the C compiler to use
CC = gcc

# define any compile-time flags
CFLAGS = -Wall -g

# define any directories containing header files other than /usr/include
INCLUDES = -I/home/newhall/include  -I../include

# define library paths in addition to /usr/lib
#   if I wanted to include libraries not in /usr/lib I'd specify
#   their path using -Lpath, something like:
LFLAGS = -L/home/newhall/lib  -L../lib

# define any libraries to link into executable:
#   if I want to link in libraries (libx.so or libx.a) I use the -llibname 
#   option, something like (this will link in libmylib.so and libm.so:
LIBS = -lmylib -lm

# define the C source files
SRCS = emitter.c error.c init.c lexer.c main.c symbol.c parser.c

# define the C object files 
# This uses Suffix Replacement within a macro:
#   $(name:string1=string2)
#         For each word in 'name' replace 'string1' with 'string2'
# Below we are replacing the suffix .c of all words in the macro SRCS
# with the .o suffix
OBJS = $(SRCS:.c=.o)

# define the executable file 
MAIN = mycc

# The following part of the makefile is generic; it can be used to 
# build any executable just by changing the definitions above and by
# deleting dependencies appended to the file from 'make depend'

.PHONY: depend clean

all:    $(MAIN)
        @echo  Simple compiler named mycc has been compiled

$(MAIN): $(OBJS) 
        $(CC) $(CFLAGS) $(INCLUDES) -o $(MAIN) $(OBJS) $(LFLAGS) $(LIBS)

# this is a suffix replacement rule for building .o's from .c's
# it uses automatic variables $<: the name of the prerequisite of
# the rule(a .c file) and $@: the name of the target of the rule (a .o file) 
# (see the gnu make manual section about automatic variables)
        $(CC) $(CFLAGS) $(INCLUDES) -c $<  -o $@

        $(RM) *.o *~ $(MAIN)

depend: $(SRCS)
        makedepend $(INCLUDES) $^