Provide default values in pre.in for PROG_LIBPATH, PROG_RPATH,
SHLIB_DIRS, SHLIB_RDIRS, and STOBJLISTS so that they don't have to be
specified in the common case.  Rename KRB5_RUN_ENV and KRB5_RUN_VARS
to RUN_SETUP (already the most commonly used name) and RUN_VARS.  Make
sure to use DEFINES for local defines (not DEFS).  Remove some other
unnecessary makefile content.

Rename the krb5int_buf_ family of functions to use the k5_ prefix for
brevity.  Reformat some k5buf implementation code to match current
practices.

Mostly this gets rid of the trailing space on line 2 after
bb76891f5386526bdf91bc790c614fc9296cb5fa.

The initial k5test.py design, copied from the dejagnu suite, is to
create config files and environments for four expected roles: client,
server, master, and slave.  This approach exaggerates the complexity
of the common case, where the configurations don't need to vary, and
limits us to having just one slave for kprop/iprop tests.

Instead, create just one configuration by default, and add a
special_env() method which sets up a differently configured
environment for the few test cases which need one.  The run_as_*()
methods are collapsed into just run(), which accepts an optional
argument for the environment returned by special_env().

Since there is no overlap between the clpreauth and kdcpreauth
interface declarations, there's no particular reason to combine them
into one header.  For backward compatibility and convenience, leave
behind a preauth_plugin.h which includes both.

Use free() instead of gss_release_buffer() when freeing the locally
allocated context_token in the sample gss-server program.  Use
gssalloc_free() instead of free when freeing buffers in
t_kgss_kernel.c (where we can't use gss_release_buffer).

We need them if any headers we depend on are not in the default
search path (e.g., gettext.h).  These files are built for
'make check' but not for the normal build.

The big_endian flag in krb5_gss_ctx_id_rec is there for
interoperability with a really ancient implementation which we believe
is no longer in use.  Get rid of it and the code to handle it.

ticket: 7166 (new)

Add dependency rules so that "make depend" succeeds from a fresh build
tree.

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@25593 dc483132-0cff-0310-8789-dd5450dbe970