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.

Obtained from Debian.

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.

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.

The old man pages are gone, so we can't install them anymore.
Also clean up install and install-unix targets that were installing
the old man pages by hand.

We generate man pages from RST sources now; they are checked into
the tree in src/man/.

The gen-manpages directory is no longer needed.

Install sphinx-generated manpages.  Original nroff manpages remain for
reference until proofreading is complete.  Modify
doc/rst_source/conf.py to better deal with shadow manpages -- sphinx
will now build k5login.5 instead of .k5login.5, and kadmin.1 instead
of both kadmin.1 and kadmin.local.8.

Proofreaders should ensure that the original nroff manpages (and
associated Makefile rules) are deleted once their reST format
equivalents have been proofread.

ticket: 7064
status: open

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@25625 dc483132-0cff-0310-8789-dd5450dbe970

ksu's setenv implementation needs to include <string.h> for memcpy.
Patch from basch@alum.mit.edu.

ticket: 7057

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@25605 dc483132-0cff-0310-8789-dd5450dbe970