ksh: Remove symbol clash with libc

Rename local function twalk() to ksh_twak().
This is needed for installing interceptors in sanitizers.

Sponsored by <The NetBSD Foundation>

ksh: Rename a local function tsearch to mytsearch

This removes a clash with well-known libc function tsearch(3) from POSIX.

This allows to build ksh against MSan.

The new name might not be perfect

ksh: Rename a local function tsearch to mytsearch

This removes a clash with well-known libc function tsearch(3) from POSIX.

This allows to build ksh against MSan.

The new name might not be perfect, but long term ksh should be switched to
the libc version.

Sponsored by <The NetBSD Foundation>

show more ...

ksh: Rename a local function tdelete to mytdelete

This removes a clash with well-known libc function tdelete(3) from POSIX.

This allows to build ksh against MSan.

The new name might not be perfect

ksh: Rename a local function tdelete to mytdelete

This removes a clash with well-known libc function tdelete(3) from POSIX.

This allows to build ksh against MSan.

The new name might not be perfect, but long term ksh should be switched to
the libc version.

Sponsored by <The NetBSD Foundation>

show more ...

Kill enough K&R cruft to build with clang again.

ksh: Upgrade to C99 <stdbool.h>

This shell already used C99 functions.

ksh: Drop old hack fo SunOS 4.1.x (1990-1994)

warns=3
- remove param names from function decls
- sprinkle const
- rename shadowed variables
- XXX: there is a lot of fishy __UNCONST going on.

Cleanup of ksh memory handling from OpenBSD, via Stefan Krueger in PR 24962.
Should also fix:
PR 8153
PR 13301
PR 15256
PR 25084

change complete-list to first complete and then print a list,
also complete after '=' (dd), and ':' (ssh) and ` (backtick)
improvements from camield@openbsd.org. approved by perry and thorpej.

resolve conflicts

Remove silly prototype.

RCS ID Police

import pdksh 5.2.12

import pdksh 5.2.8