Some applications write a profile file and then immediately use it via
a krb5_context.  If we have a cached copy of the profile we wrote,
make sure to update it by forcing a stat when we reuse an existing
prf_data_t object.

[ghudson@mit.edu: commit message]

ticket: 7884

Directly use stdint.h names for integer types in preference to the
various internal names we have made up for them.

Make unconditional use of <stdint.h> and fixed-width types such as
uint32_t.  k5-plugin.h doesn't use any special integer types, so
remove the conditional include block there.  Nothing uses
INT64_FMT/UINT64_FMT, so leave those out of k5-platform.h for now.

$(BUILDTOP)/include/profile.h was being updated by two different
rules, which could collide with make -j.  Use a dependency from
includes instead of a redundant rule.

This fixes a long-standing documentation bug where we claimed that
a domain_realm mapping for a host name would not affect entries
under that domain name.  The code has always had the behavior where
a host name mapping implies the corresponding domain name mapping,
since the 1.0 release.

While here, replace media-lab with csail in example files, as the
media lab realm is no longer in use.  Also strip port 88 from KDC
specifications, and drop the harmful default_{tgs,tkt}_enctypes
lines from src/util/profile/krb5.conf.

Further cleanup on these files to remove defunct realms may be in order.

ticket: 7690 (new)
tags: pullup
target_version: 1.11.4

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.

Locking and unlocking a non-recursive mutex is a simple memory
operation and should not fail on any reasonable platform with correct
usage.  A pthread mutex can return EDEADLK on lock or EPERM on unlock,
or EINVAL if the mutex is uninitialized, but all of these conditions
would reflect serious bugs in the calling code.

Change the k5_mutex_lock and k5_mutex_unlock wrappers to return void
and adjust all call sites.  Propagate this change through
k5_cc_mutex_lock and k5_cc_mutex_unlock as well.

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

Fix style issues in kerrs.c and errors.c.  Rename error handling
functions to use shorter k5_ prefix.  Eliminate an inoperable
krb5int_set_error() call in gic_opte_alloc and convert the other
call to use krb5_set_error_message().