src/lib/libedit, branch release/11.1.0

MFC r312997, r313002:

2017-02-20T03:33:59+00:00

Re-import libedit 2016-02-27 and update libedit with changes from NetBSD's
2016-03-21.

Obtained from:	NetBSD

MFC r305855, r306297, r306300, r306312-r306313

2016-12-11T03:57:21+00:00

When MAKEOBJDIRPREFIX points to a case-insensitive file system, the
build can break when different source files create the same object
files (case-insensitivity speaking).  This is the case for object
files compiled with -fpic and shared libraries. The former uses
an extension of ".So", and the latter an extension ".so".  Rename
shared object files from *.So to *.pico to match what NetBSD does.

Also:
 o  Compile _Exit.c as C99_Exit.c, as it conflicts with _exit.s
 o  Add entry to UPDATING
 o  Document .pico extension

lib: minor spelling fixes in comments.

2016-05-01T19:37:33+00:00

No functional change.

MFH

2016-04-11T15:24:59+00:00

Sponsored by:	The FreeBSD Foundation

libedit: replace 0 with NULL for pointers.

2016-04-09T18:52:09+00:00

Found with devel/coccinelle.

Reviewed by:	Christos Zoulas

MFH

2016-03-07T15:44:54+00:00

Sponsored by:	The FreeBSD Foundation

Revert r296175

2016-03-06T21:32:54+00:00

Undo update of libedit 2016-02-27

Something in libedit appears to be causing breakage in lldb38.
The changes are not generally huge but they are suficient to
to justify reverting for now.

Reported by:	novel, bapt

MFH

2016-03-02T16:14:46+00:00

Sponsored by:	The FreeBSD Foundation

MFV r296159

2016-02-29T00:15:25+00:00

Sync our libedit with NetBSD's libedit 2016-02-27.

Obtained from:	NetBSD

DIRDEPS_BUILD: Regenerate without local dependencies.

2016-02-24T17:20:11+00:00

These are no longer needed after the recent 'beforebuild: depend' changes
and hooking DIRDEPS_BUILD into a subset of FAST_DEPEND which supports
skipping 'make depend'.

Sponsored by:	EMC / Isilon Storage Division