are Makefiles easy.
Approach 1: In fact, to build a simple program that doesn't depend on any libraries, you
don't even need a makefile. make(1) is smart enough to figure it all out itself. For
instance, if you have a file "xzq0001_hw1.cpp" (Note: xzq0001 is my Auburn ID) in the
current directory:
$ ls
xzq001_hw1.cpp
$ make xzq0001_hw1
g++ xzq0001_hw1 -o xzq0001_hw1
make(1) will detect the type of file and compile it for you, automatically naming the
executable the same as the input file (g++(1)) xzq0001_hw1.cpp will give you a file
called a.out unless you manually specify a name for it). If you need libraries, you can
specify them by setting the variable LDFLAGS on the command line.
Approach 2: Of course, you also can prepare a simple makefile (available at:
http://www.eng.auburn.edu/~xqin/courses/comp2710/makefile) as
follows:
xzq0001_hw1: xzq0001_hw1.cpp
g++ xzq0001_hw1.cpp -o xzq0001_hw1
clean:
rm -f *.o xzq0001_hw1
where xzq_0001 is my auburn ID.
Suppose you have two files "xzq0001_hw1.cpp" and makefile in the current directory,
then you will have:
$ ls
makefile xzq001_hw1.cpp
$ make
g++ xzq0001_hw1 -o xzq0001_hw1
make is smart enough to use the first rule in the Makefile as the default action, so:
$ ls
Makefile
xzq0001_hw1
xzq0001_hw1.o
References:
http://wlug.org.nz/MakefileHowto