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wtd

Wed May 31, 2006 11:12 am


[Tip] Makefiles

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Learn to use makefiles.

This means practicing.  A lot.

When you want to compile your "hello world" program... write a makefile.

You'll be glad you did.


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md

Wed May 31, 2006 11:24 am



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A simplish makefile for a "Hello, world" app. The code is all in the file main.cpp. It could be simpler yes... but this gives an idea of how things can be done without making it horribly complicated (see #
#   "Hello, world" makefile
#   
#

########################################
# compiler & linker
#
CC = g++
LN = g++


########################################
# build options
#
CXX_FLAGS = -g -Wall 
LN_FLAGS =
LN_LIBS = 

########################################
# rules

#default rule
all: hello

# main
main.o : main.cpp
	${CC} ${CXX_FLAGS} main.cpp -o main.o

# the app	
hello : main.o
	${LN} ${LN_FLAGS} ${LN_LIBS} main.o -o hello
	
# clean
.PHONY : clean
clean :
	touch main.o
	touch hello
	rm main.o hello