Help setting up makefile & program library

[Daniel Wu]

I'm having quite a bit of trouble setting up a makefile.  I guess I'm
just not understanding its operation that well. Anyway here is my tale:

I want to create a program library and have my programs link to it each
time.  Let's say the library file  name is proglib, and proglib contains
2 files lib1.o lib2.o.  The dependencies are as follows:

		foobar: foobar.c proglib
		
		proglib: lib1.c lib2.c header.h
		
		lib1.o: lib1.c header.h
		
		lib2.o: lib2.c header.h
		
The reason why I don't have the line
		proglib: lib1.o lib2.o
(Those 2 files are what proglib consists of) is because I would like the
lib1.o, lib2.o files to be deleted after they've been gathered into the 
library, to save disk space).  Thus, the only time that proglib should
be recompiled occurs when changes have been made to any of it's dependent
files lib1.c,lib2.c and header.h (since lib1.c & lib2.c depend on that).

Now, in Sys V UNIX, I've seen makefiles accomplish everything that I've 
specified with the simple line:
	
		library: proglib(lib1.o) proglib(lib2.o)

So the resulting makefile is a short and sweet

		foobar: $$@ library
			$(CC) $@.c proglib -o $@

		library: proglib(lib1.o) proglib(lib2.o)
		
		lib1.o lib2.o: header.h

Indeed, I would be satisfied doing it that way were it not for the fact
that I'm working in BSD flavored SUN UNIX, so after creating a library
via
		ar rv proglib lib1.o lib2.o

I have to run
		ranlib proglib

One quick and dirty fix I thought of (which doesn't work) is to try

		foobar: $$@ dummylibrary
			$(CC) $@.c proglib -o $@

		dummylibrary: lib1.c lib2.c header.h
			sh -c "make library;\
			ranlib proglib"

		library: proglib(lib1.o) proglib(lib2.o)
		
		lib1.o lib2.o: header.h

(As you can see, I also don't really understand how the shell interacts
with make.  I believe that if I had simple left the entry as

		dummylibrary: lib1.c lib2.c header.h
			make library
			ranlib proglib

make complains about "Unexpected End of File" or something.)

Anyway, rather than keep peddling my ignorance, can someone please set me 
straight, and show me how to set up the makefile properly?  Also, if you
would, please explain to me why my clumsy attempts are unsuccessful.

Daniel 
dwu at nunki.usc.edu