Building a library is much like building a program. In this case, the
name of the primary is LIBRARIES. Libraries can be installed in
libdir or pkglibdir.
See A Shared Library, for information on how to build shared
libraries using libtool and the LTLIBRARIES primary.
Each _LIBRARIES variable is a list of the libraries to be built.
For instance to create a library named libcpio.a, but not install
it, you would write:
noinst_LIBRARIES = libcpio.a
The sources that go into a library are determined exactly as they are
for programs, via the _SOURCES variables. Note that the library
name is canonicalized (see Canonicalization), so the _SOURCES
variable corresponding to liblob.a is liblob_a_SOURCES,
not liblob.a_SOURCES.
Extra objects can be added to a library using the
library_LIBADD variable. This should be used for objects
determined by configure. Again from cpio:
libcpio_a_LIBADD = $(LIBOBJS) $(ALLOCA)
In addition, sources for extra objects that will not exist until
configure-time must be added to the BUILT_SOURCES variable
(see Sources).