Revert CC_WNO_USE_AFTER_FREE from Makefile's (thanks uwe@)

Sprinkle CC_WNO_USE_AFTER_FREE for GCC 12

All of them are blamed for idiom equivalent to:
newbuf = realloc(buf, size);
p = newbuf + (p - buf);

install pkg-config file for libedit

version number matches portable libedit
--cflags output matches portable libedit, since users probably want the
readline interface

bsd.own.mk: rename GCC_NO_* to CC_WNO_*

Rename compiler-warning-disable variables from
GCC_NO_warning
to
CC_WNO_warning
where warning is the full warning name as used by the compiler.

GCC_NO_IMPL

bsd.own.mk: rename GCC_NO_* to CC_WNO_*

Rename compiler-warning-disable variables from
GCC_NO_warning
to
CC_WNO_warning
where warning is the full warning name as used by the compiler.

GCC_NO_IMPLICIT_FALLTHRU is CC_WNO_IMPLICIT_FALLTHROUGH

Using the convention CC_compilerflag, where compilerflag
is based on the full compiler flag name.

show more ...

introduce some common variables for use in GCC warning disables:

GCC_NO_FORMAT_TRUNCATION -Wno-format-truncation (GCC 7/8)
GCC_NO_STRINGOP_TRUNCATION -Wno-stringop-truncation (GCC 8)
GCC_NO_STRI

introduce some common variables for use in GCC warning disables:

GCC_NO_FORMAT_TRUNCATION -Wno-format-truncation (GCC 7/8)
GCC_NO_STRINGOP_TRUNCATION -Wno-stringop-truncation (GCC 8)
GCC_NO_STRINGOP_OVERFLOW -Wno-stringop-overflow (GCC 8)
GCC_NO_CAST_FUNCTION_TYPE -Wno-cast-function-type (GCC 8)

use these to turn off warnings for most GCC-8 complaints. many
of these are false positives, most of the real bugs are already
commited, or are yet to come.


we plan to introduce versions of (some?) of these that use the
"-Wno-error=" form, which still displays the warnings but does
not make it an error, and all of the above will be re-considered
as either being "fix me" (warning still displayed) or "warning
is wrong."

show more ...

Allow wide characters (properly encoded as byte strings according to LC_CTYPE)
to be (perhaps part of) the "invisible" characters in a prompt, or the
required prompt character which follows the liter

Allow wide characters (properly encoded as byte strings according to LC_CTYPE)
to be (perhaps part of) the "invisible" characters in a prompt, or the
required prompt character which follows the literal sequence (this character
must be one with a printing column width >= 1). The literal indicator
character (which is just a marker, and not printed anywhere) (the PSlit
parameter in sh(1)) can also be a wide char (passed to libedit as a wchar_t,
encoded as that by sh(1) or other applications that support this.)

Note: this has currently only been tested with everything ascii (C locale).

show more ...

add literal escape sequence support, patterned after the tcsh ones.

remove debug read (Ingo Schwarze)

Instead of compiling all the source files together in one big file, use
protected visibility to achieve the same effect.

Add missing backslash that broke build.

Add more MLINKS, sort

new man page from Ingo Schwarze.

From Ingo Schwarze:
* Replace fcns.c by a shorter and simpler func.h
and include it only in the one file needing it, map.c.
* Combine help.h and help.c into a simplified help.h
and include it

From Ingo Schwarze:
* Replace fcns.c by a shorter and simpler func.h
and include it only in the one file needing it, map.c.
* Combine help.h and help.c into a simplified help.h
and include it only in the one file needing it, map.c.
* Check the very simple, static files editline.c, historyn.c, and
tokenizern.c into CVS rather than needlessly generating them.
* So we no longer autogenerate any C files. :-)
* Shorten and simplify makelist by deleting the options -n, -e, -bc,
and -m; the latter was unused and useless in the first place.
* Move the declaration of el_func_t from fcns.h to the header
actually needing it, map.h. Since that header is already
included by el.h for unrelated reasons, that makes el_func_t
just as globally available as before.
* No longer include the simplified fcns.h into el.h,
include it directly into the *.c files needing it.

show more ...

Start removing the WIDECHAR ifdefs; building without it has stopped working
anyway. (Ingo Schwarze)

PR/50880: David Binderman: Remove redundant code.
While here, fix all debugging formats.

Get split el_getc and el_wgetc completely and call el_wgetc internally.
Change some character constants to they wide versions. (Ingo Schwarze)

whitespace and header sorting changes (Ingo Schwarze). No functional changes.

Disable -Wcast-qual for clang for now.

remove remaining makefile support for GCC < 45 that i found.

Don't depend on HAVE_GCC being always defined.

These directories default to WARNS?=5

re-enable -Wconversion

Only use -Wconversion if GCC is actually the active compiler.

Don't use "-Wconversion" with GCC 4.5 which will complain about all the
expressions where signed variables are converted to unsigned in an
expression e.g. "size_t foo = sizeof(something) * int_var;".

pass -Wconversion