Move readline to the readline/readline subdirectory

readline turns out to be a bit of a stumbling block for the project to
move gdbsupport (and then gdbserver) to the top-level.

The issue is that readline headers are intended to be included with
names like "readline/readline.h".  To support this, gdb effectively
adds a -I option pointing to the top-level source directory -- but,
importantly, this option is not used when the system readline is used.

For gdbsupport, a -I option like this would always be needed, but that
in turn would break the system readline case.  This was PR build/17077,
fixed in commit a8a5dbcab8.

Previously, we had discussed this on the gdb-patches list in terms of
removing readline from the tree

    https://sourceware.org/ml/gdb-patches/2019-09/msg00317.html

However, Eli expressed some concerns, and Joel did as well (off-list).

Given those concerns, and the fact that a patch-free local readline is
relatively new in gdb (it was locally patched for years), I changed my
mind and decided to handle this situation by moving the readline
sources down a level.

That is, upstream readline is now in readline/readline, and the
top-level readline directory just contains the minimal configury
needed to build that.

This fixes the problem because, when gdb unconditionally adds a
-I$(top_srcdir), this will not find readline headers.  A separate -I
will be needed instead, which is exactly what's needed for
--with-system-readline.

gdb/ChangeLog
2019-10-23  Tom Tromey  <tom@tromey.com>

	* Makefile.in (READLINE_DIR): Update.

gdb/doc/ChangeLog
2019-10-23  Tom Tromey  <tom@tromey.com>

	* Makefile.in (READLINE_DIR): Update.

readline/ChangeLog
2019-10-23  Tom Tromey  <tom@tromey.com>

	Move old contents to readline/ subdirectory.
	* aclocal.m4, configure, configure.ac, .gitignore, Makefile.am,
	Makefile.in, README: New files.

Change-Id: Ice156a2ee09ea68722b48f64d97146d7428ea9e4

gdb/ChangeLog

@@ -1,3 +1,7 @@
+2019-10-23  Tom Tromey  <tom@tromey.com>
+
+	* Makefile.in (READLINE_DIR): Update.
+
 2019-10-23  Tankut Baris Aktemur  <tankut.baris.aktemur@intel.com>
 
 	* infcall.c (call_function_by_hand_dummy): Fix the function

gdb/Makefile.in

@@ -174,8 +174,8 @@ LIBDECNUMBER = $(LIBDECNUMBER_DIR)/libdecnumber.a
 LIBDECNUMBER_SRC = $(srcdir)/$(LIBDECNUMBER_DIR)
 LIBDECNUMBER_CFLAGS = -I$(LIBDECNUMBER_DIR) -I$(LIBDECNUMBER_SRC)
 
-# Where is the READLINE library?  Typically in ../readline.
-READLINE_DIR = ../readline
+# Where is the READLINE library?  Typically in ../readline/readline.
+READLINE_DIR = ../readline/readline
 READLINE_SRC = $(srcdir)/$(READLINE_DIR)
 READLINE = @READLINE@
 READLINE_DEPS = @READLINE_DEPS@

gdb/doc/ChangeLog

@@ -1,3 +1,7 @@
+2019-10-23  Tom Tromey  <tom@tromey.com>
+
+	* Makefile.in (READLINE_DIR): Update.
+
 2019-10-23  Christian Biesinger  <cbiesinger@google.com>
 
 	* python.texi (Threads In Python): Add a note for how to get the

gdb/doc/Makefile.in

@@ -74,7 +74,7 @@ BUGURL_TEXI = @REPORT_BUGS_TEXI@
 
 # Where is the source dir for the READLINE library doc?  
 # Traditionally readline is in .. or .
-READLINE_DIR = ${gdbdir}/../readline/doc
+READLINE_DIR = ${gdbdir}/../readline/readline/doc
 READLINE_TEXI_INCFLAG = @READLINE_TEXI_INCFLAG@
 
 # The GDB/MI docs come from a sibling directory ../mi

readline/.gitignore

@@ -1,37 +1,4 @@
-Makefile
-
-*.o
-*.a
-*.so
-*.sl
-*.dll
-
+autom4te.cache
 config.cache
-config.h
 config.log
 config.status
-
-doc/Makefile
-examples/Makefile
-shlib/Makefile
-
-examples/fileman
-examples/hist_erasedups
-examples/hist_purgecmd
-examples/histexamp
-examples/rl
-examples/rl-callbacktest
-examples/rlbasic
-examples/rlcat
-examples/rlevent
-examples/rltest
-examples/rlversion
-
-libhistory.so.*
-libreadline.so.*
-
-*.dylib
-
-readline.pc
-
-stamp-h

readline/ChangeLog

@@ -0,0 +1,6 @@
+2019-10-23  Tom Tromey  <tom@tromey.com>
+
+	Move old contents to readline/ subdirectory.
+	* aclocal.m4, configure, configure.ac, .gitignore, Makefile.am,
+	Makefile.in, README: New files.
+

readline/Makefile.am

@@ -0,0 +1,20 @@
+# Copyright (C) 2019 Free Software Foundation, Inc.
+
+# This file is part of GDB.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+AUTOMAKE_OPTIONS = no-dist foreign
+SUBDIRS = readline
+ACLOCAL_AMFLAGS = -I . -I ../config

readline/README

@@ -1,196 +1,14 @@
-Introduction
-============
+This is an import of readline that is used by gdb.
 
-This is the Gnu Readline library, version 8.0.
+To send patches, follow the gdb patch submission instructions in
+../gdb/CONTRIBUTE.  For maintainers, see ../gdb/MAINTAINERS.
 
-The Readline library provides a set of functions for use by applications
-that allow users to edit command lines as they are typed in.  Both
-Emacs and vi editing modes are available.  The Readline library includes
-additional functions to maintain a list of previously-entered command
-lines, to recall and perhaps reedit those lines, and perform csh-like
-history expansion on previous commands.
+If you need to patch readline, please document the changes here.
 
-The history facilites are also placed into a separate library, the
-History library, as part of the build process.  The History library
-may be used without Readline in applications which desire its
-capabilities.
+To import, copy the upstream readline sources into the "readline"
+subdirectory, remembering to (1) remove any files that were deleted
+upstream, and (2) merge the one small configure.ac patch that gdb
+carries.
 
-The Readline library is free software, distributed under the terms of
-the [GNU] General Public License as published by the Free Software
-Foundation, version 3 of the License.  For more information, see the
-file COPYING.
-
-To build the library, try typing `./configure', then `make'.  The
-configuration process is automated, so no further intervention should
-be necessary.  Readline builds with `gcc' by default if it is
-available.  If you want to use `cc' instead, type
-
-        CC=cc ./configure
-
-if you are using a Bourne-style shell.  If you are not, the following
-may work:
-
-        env CC=cc ./configure
-
-Read the file INSTALL in this directory for more information about how
-to customize and control the build process.
-
-The file rlconf.h contains C preprocessor defines that enable and disable
-certain Readline features.
-
-The special make target `everything' will build the static and shared
-libraries (if the target platform supports them) and the examples.
-
-Examples
-========
-
-There are several example programs that use Readline features in the
-examples directory.  The `rl' program is of particular interest.  It
-is a command-line interface to Readline, suitable for use in shell
-scripts in place of `read'.
-
-Shared Libraries
-================
-
-There is skeletal support for building shared versions of the
-Readline and History libraries.  The configure script creates
-a Makefile in the `shlib' subdirectory, and typing `make shared'
-will cause shared versions of the Readline and History libraries
-to be built on supported platforms.
-
-If `configure' is given the `--enable-shared' option, it will attempt
-to build the shared libraries by default on supported platforms.
-
-Configure calls the script support/shobj-conf to test whether or
-not shared library creation is supported and to generate the values
-of variables that are substituted into shlib/Makefile.  If you
-try to build shared libraries on an unsupported platform, `make'
-will display a message asking you to update support/shobj-conf for
-your platform.
-
-If you need to update support/shobj-conf, you will need to create
-a `stanza' for your operating system and compiler.  The script uses
-the value of host_os and ${CC} as determined by configure.  For
-instance, FreeBSD 4.2 with any version of gcc is identified as
-`freebsd4.2-gcc*'.
-
-In the stanza for your operating system-compiler pair, you will need to
-define several variables.  They are:
-
-SHOBJ_CC	The C compiler used to compile source files into shareable
-		object files.  This is normally set to the value of ${CC}
-		by configure, and should not need to be changed.
-
-SHOBJ_CFLAGS	Flags to pass to the C compiler ($SHOBJ_CC) to create
-		position-independent code.  If you are using gcc, this
-		should probably be set to `-fpic'.
-
-SHOBJ_LD	The link editor to be used to create the shared library from
-		the object files created by $SHOBJ_CC.  If you are using
-		gcc, a value of `gcc' will probably work.
-
-SHOBJ_LDFLAGS	Flags to pass to SHOBJ_LD to enable shared object creation.
-		If you are using gcc, `-shared' may be all that is necessary.
-		These should be the flags needed for generic shared object
-		creation.
-
-SHLIB_XLDFLAGS	Additional flags to pass to SHOBJ_LD for shared library
-		creation.  Many systems use the -R option to the link
-		editor to embed a path within the library for run-time
-		library searches.  A reasonable value for such systems would
-		be `-R$(libdir)'.
-
-SHLIB_LIBS	Any additional libraries that shared libraries should be
-		linked against when they are created.
-
-SHLIB_LIBPREF	The prefix to use when generating the filename of the shared
-		library.  The default is `lib'; Cygwin uses `cyg'.
-
-SHLIB_LIBSUFF	The suffix to add to `libreadline' and `libhistory' when
-		generating the filename of the shared library.  Many systems
-		use `so'; HP-UX uses `sl'.
-
-SHLIB_LIBVERSION The string to append to the filename to indicate the version
-		of the shared library.  It should begin with $(SHLIB_LIBSUFF),
-		and possibly include version information that allows the
-		run-time loader to load the version of the shared library
-		appropriate for a particular program.  Systems using shared
-		libraries similar to SunOS 4.x use major and minor library
-		version numbers; for those systems a value of
-		`$(SHLIB_LIBSUFF).$(SHLIB_MAJOR)$(SHLIB_MINOR)' is appropriate.
-		Systems based on System V Release 4 don't use minor version
-		numbers; use `$(SHLIB_LIBSUFF).$(SHLIB_MAJOR)' on those systems.
-		Other Unix versions use different schemes.
-
-SHLIB_DLLVERSION The version number for shared libraries that determines API
-		compatibility between readline versions and the underlying
-		system.  Used only on Cygwin.  Defaults to $SHLIB_MAJOR, but
-		can be overridden at configuration time by defining DLLVERSION
-		in the environment.
-
-SHLIB_DOT	The character used to separate the name of the shared library
-		from the suffix and version information.  The default is `.';
-		systems like Cygwin which don't separate version information
-		from the library name should set this to the empty string.
-
-SHLIB_STATUS	Set this to `supported' when you have defined the other
-		necessary variables.  Make uses this to determine whether
-		or not shared library creation should be attempted.
-
-You should look at the existing stanzas in support/shobj-conf for ideas.
-
-Once you have updated support/shobj-conf, re-run configure and type
-`make shared'.  The shared libraries will be created in the shlib
-subdirectory.
-
-If shared libraries are created, `make install' will install them. 
-You may install only the shared libraries by running `make
-install-shared' from the top-level build directory.  Running `make
-install' in the shlib subdirectory will also work.  If you don't want
-to install any created shared libraries, run `make install-static'. 
-
-Documentation
-=============
-
-The documentation for the Readline and History libraries appears in
-the `doc' subdirectory.  There are three texinfo files and a
-Unix-style manual page describing the facilities available in the
-Readline library.  The texinfo files include both user and
-programmer's manuals.  HTML versions of the manuals appear in the
-`doc' subdirectory as well. 
-
-Usage
-=====
-
-Our position on the use of Readline through a shared-library linking
-mechanism is that there is no legal difference between shared-library
-linking and static linking--either kind of linking combines various
-modules into a single larger work.  The conditions for using Readline
-in a larger work are stated in section 3 of the GNU GPL.
-
-Reporting Bugs
-==============
-
-Bug reports for Readline should be sent to:
-
-        bug-readline@gnu.org
-
-When reporting a bug, please include the following information:
-
-        * the version number and release status of Readline (e.g., 4.2-release)
-        * the machine and OS that it is running on
-        * a list of the compilation flags or the contents of `config.h', if
-          appropriate
-        * a description of the bug
-        * a recipe for recreating the bug reliably
-        * a fix for the bug if you have one!
-
-If you would like to contact the Readline maintainer directly, send mail
-to bash-maintainers@gnu.org.
-
-Since Readline is developed along with bash, the bug-bash@gnu.org mailing
-list (mirrored to the Usenet newsgroup gnu.bash.bug) often contains
-Readline bug reports and fixes. 
-
-Chet Ramey
-chet.ramey@case.edu
+If your import removes the need for a local patch, please remember to
+update this file.

readline/configure.ac

@@ -1,320 +1,29 @@
+dnl Autoconf configure script for the readline wrapper directory
+dnl Copyright (C) 2019 Free Software Foundation, Inc.
 dnl
-dnl Configure script for readline library
+dnl This file is part of GDB.
 dnl
-dnl report bugs to chet@po.cwru.edu
+dnl This program is free software; you can redistribute it and/or modify
+dnl it under the terms of the GNU General Public License as published by
+dnl the Free Software Foundation; either version 3 of the License, or
+dnl (at your option) any later version.
 dnl
+dnl This program is distributed in the hope that it will be useful,
+dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
+dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+dnl GNU General Public License for more details.
+dnl
+dnl You should have received a copy of the GNU General Public License
+dnl along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
 dnl Process this file with autoconf to produce a configure script.
 
-# Copyright (C) 1987-2018 Free Software Foundation, Inc.
+AC_INIT([readline], [UNUSED-VERSION])
+AC_CONFIG_SRCDIR([readline/readline.c])
+AC_CONFIG_AUX_DIR(..)
+AM_INIT_AUTOMAKE
+AM_MAINTAINER_MODE
 
-#   This program is free software: you can redistribute it and/or modify
-#   it under the terms of the GNU General Public License as published by
-#   the Free Software Foundation, either version 3 of the License, or
-#   (at your option) any later version.
-
-#   This program is distributed in the hope that it will be useful,
-#   but WITHOUT ANY WARRANTY; without even the implied warranty of
-#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-#   GNU General Public License for more details.
-
-#   You should have received a copy of the GNU General Public License
-#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-AC_REVISION([for Readline 8.0, version 2.85])
-
-m4_include([../config/override.m4])
-
-AC_INIT(readline, 8.0, bug-readline@gnu.org)
-
-dnl make sure we are using a recent autoconf version
-AC_PREREQ(2.50)
-
-AC_CONFIG_SRCDIR(readline.h)
-dnl GDB LOCAL
-dnl AC_CONFIG_AUX_DIR(./support)
-AC_CONFIG_AUX_DIR(`cd $srcdir;pwd`/..)
-AC_CONFIG_HEADERS(config.h)
-
-dnl update the value of RL_READLINE_VERSION in readline.h when this changes
-LIBVERSION=8.0
-
-AC_CANONICAL_HOST
-AC_CANONICAL_BUILD
-
-dnl configure defaults
-opt_curses=no
-
-dnl arguments to configure
-AC_ARG_WITH(curses, AC_HELP_STRING([--with-curses], [use the curses library instead of the termcap library]), opt_curses=$withval)
-
-if test "$opt_curses" = "yes"; then
-	prefer_curses=yes
-fi
-
-dnl option parsing for optional features
-opt_multibyte=yes
-opt_static_libs=yes
-opt_shared_libs=no
-opt_install_examples=no
-
-AC_ARG_ENABLE(multibyte, AC_HELP_STRING([--enable-multibyte], [enable multibyte characters if OS supports them]), opt_multibyte=$enableval)
-dnl AC_ARG_ENABLE(shared, AC_HELP_STRING([--enable-shared], [build shared libraries [[default=YES]]]), opt_shared_libs=$enableval)
-AC_ARG_ENABLE(static, AC_HELP_STRING([--enable-static], [build static libraries [[default=YES]]]), opt_static_libs=$enableval)
-AC_ARG_ENABLE(install-examples, AC_HELP_STRING([--disable-install-examples], [don't install examples [[default=install]]]), opt_install_examples=$enableval)
-
-if test $opt_multibyte = no; then
-AC_DEFINE(NO_MULTIBYTE_SUPPORT)
-fi
-
-dnl load up the cross-building cache file -- add more cases and cache
-dnl files as necessary
-
-dnl Note that host and target machine are the same, and different than the
-dnl build machine.
-
-CROSS_COMPILE=
-if test "x$cross_compiling" = "xyes"; then
-    case "${host}" in
-    *-cygwin*)
-        cross_cache=${srcdir}/cross-build/cygwin.cache
-        ;;
-    *-mingw*)
-        cross_cache=${srcdir}/cross-build/mingw.cache
-        ;;
-    i[[3456]]86-*-beos*)
-        cross_cache=${srcdir}/cross-build/x86-beos.cache
-        ;;
-    *)  echo "configure: cross-compiling for $host is not supported" >&2
-        ;;
-    esac
-    if test -n "${cross_cache}" && test -r "${cross_cache}"; then
-        echo "loading cross-build cache file ${cross_cache}"
-        . ${cross_cache}
-    fi
-    unset cross_cache
-    CROSS_COMPILE='-DCROSS_COMPILING'
-    AC_SUBST(CROSS_COMPILE)
-fi
-
-echo ""
-echo "Beginning configuration for readline-$LIBVERSION for ${host_cpu}-${host_vendor}-${host_os}"
-echo ""
-
-# We want these before the checks, so the checks can modify their values.
-test -z "$CFLAGS" && CFLAGS=-g auto_cflags=1
-
-AC_PROG_MAKE_SET
-AC_PROG_CC
-dnl AC_AIX
-AC_MINIX
-
-# If we're using gcc and the user hasn't specified CFLAGS, add -O to CFLAGS.
-test -n "$GCC" && test -n "$auto_cflags" && CFLAGS="$CFLAGS -O"
-
-AC_PROG_GCC_TRADITIONAL
-AC_PROG_INSTALL
-AC_CHECK_TOOL(AR, ar)
-dnl Set default for ARFLAGS, since autoconf does not have a macro for it.
-dnl This allows people to set it when running configure or make
-test -n "$ARFLAGS" || ARFLAGS="cr"
-AC_PROG_RANLIB
-
-MAKE_SHELL=/bin/sh
-AC_SUBST(MAKE_SHELL)
-
-AC_C_CONST
-AC_C_PROTOTYPES
-AC_C_CHAR_UNSIGNED
-AC_C_VOLATILE
-
-AC_TYPE_SIGNAL
-
-AC_TYPE_SIZE_T
-AC_CHECK_TYPE(ssize_t, int)
-
-AC_HEADER_STDC
-
-AC_HEADER_STAT
-AC_HEADER_DIRENT
-
-AC_CHECK_FUNCS(fcntl kill lstat readlink)
-AC_CHECK_FUNCS(fnmatch memmove pselect putenv select setenv setlocale \
-		strcasecmp strpbrk tcgetattr vsnprintf)
-AC_CHECK_FUNCS(isascii isxdigit)
-AC_CHECK_FUNCS(getpwent getpwnam getpwuid)
-
-AC_FUNC_CHOWN
-AC_FUNC_STRCOLL
-
-AC_CHECK_HEADERS(fcntl.h unistd.h stdlib.h varargs.h stdarg.h stdbool.h \
-		string.h strings.h \
-		limits.h locale.h pwd.h memory.h termcap.h termios.h termio.h)
-AC_CHECK_HEADERS(sys/ioctl.h sys/pte.h sys/stream.h sys/select.h sys/file.h)
-
-AC_CHECK_HEADERS(sys/ptem.h,,,
-[[
-#if HAVE_SYS_STREAM_H
-#  include <sys/stream.h>
-#endif
-]])
-
-AC_SYS_LARGEFILE
-
-BASH_SYS_SIGNAL_VINTAGE
-BASH_SYS_REINSTALL_SIGHANDLERS
-
-BASH_FUNC_POSIX_SETJMP
-BASH_FUNC_LSTAT
-BASH_FUNC_STRCOLL
-BASH_FUNC_CTYPE_NONASCII
-
-BASH_CHECK_GETPW_FUNCS
-
-AC_HEADER_TIOCGWINSZ
-
-BASH_TYPE_SIG_ATOMIC_T
-BASH_TYPE_SIGHANDLER
-
-BASH_HAVE_TIOCSTAT
-BASH_HAVE_FIONREAD
-BASH_CHECK_SPEED_T
-BASH_STRUCT_WINSIZE
-BASH_STRUCT_DIRENT_D_INO
-BASH_STRUCT_DIRENT_D_FILENO
-
-AC_CHECK_HEADERS(libaudit.h)
-AC_CHECK_DECLS([AUDIT_USER_TTY],,, [[#include <linux/audit.h>]])
-
-dnl yuck
-case "$host_os" in
-aix*)   prefer_curses=yes ;;
-esac
-BASH_CHECK_LIB_TERMCAP
-if test "$TERMCAP_LIB" = "./lib/termcap/libtermcap.a"; then
-	if test "$prefer_curses" = yes; then
-		TERMCAP_LIB=-lcurses
-	else
-		TERMCAP_LIB=-ltermcap	#default
-	fi
-fi
-# Windows ncurses installation
-if test "$TERMCAP_LIB" = "-lncurses"; then
-	AC_CHECK_HEADERS(ncurses/termcap.h)
-fi
-
-case "$TERMCAP_LIB" in
--ltinfo)  TERMCAP_PKG_CONFIG_LIB=tinfo ;;
--lcurses) TERMCAP_PKG_CONFIG_LIB=ncurses ;;
--lncurses) TERMCAP_PKG_CONFIG_LIB=ncurses ;;
--ltermcap) TERMCAP_PKG_CONFIG_LIB=termcap ;;
-*) TERMCAP_PKG_CONFIG_LIB=termcap ;;
-esac
-
-BASH_CHECK_MULTIBYTE
-
-case "$host_cpu" in
-*cray*)	LOCAL_CFLAGS=-DCRAY ;;
-*s390*) LOCAL_CFLAGS=-fsigned-char ;;
-esac
-
-case "$host_os" in
-isc*)	LOCAL_CFLAGS=-Disc386 ;;
-esac
-
-# shared library configuration section
-#
-# Shared object configuration section.  These values are generated by
-# ${srcdir}/support/shobj-conf
-#
-if test -f ${srcdir}/support/shobj-conf; then
-        AC_MSG_CHECKING(configuration for building shared libraries)
-        eval `TERMCAP_LIB=$TERMCAP_LIB ${CONFIG_SHELL-/bin/sh} ${srcdir}/support/shobj-conf -C "${CC}" -c ${host_cpu} -o ${host_os} -v ${host_vendor}`
-
-#	case "$SHLIB_LIBS" in
-#	*curses*|*termcap*|*termlib*)	;;
-#	*)			SHLIB_LIBS="$SHLIB_LIBS $TERMCAP_LIB" ;;
-#	esac
-	
-        AC_SUBST(SHOBJ_CC)
-        AC_SUBST(SHOBJ_CFLAGS)
-        AC_SUBST(SHOBJ_LD)
-        AC_SUBST(SHOBJ_LDFLAGS)
-	AC_SUBST(SHOBJ_XLDFLAGS)
-        AC_SUBST(SHOBJ_LIBS)
-        AC_SUBST(SHOBJ_STATUS)
-	AC_SUBST(SHLIB_STATUS)
-	AC_SUBST(SHLIB_XLDFLAGS)
-	AC_SUBST(SHLIB_DOT)
-	AC_SUBST(SHLIB_LIBPREF)
-	AC_SUBST(SHLIB_LIBSUFF)
-	AC_SUBST(SHLIB_LIBVERSION)
-	AC_SUBST(SHLIB_DLLVERSION)
-	AC_SUBST(SHLIB_LIBS)
-        AC_MSG_RESULT($SHLIB_STATUS)
-
-	# SHLIB_STATUS is either `supported' or `unsupported'.  If it's
-	# `unsupported', turn off any default shared library building
-	if test "$SHLIB_STATUS" = 'unsupported'; then
-		opt_shared_libs=no
-	fi
-
-	# shared library versioning
-	# quoted for m4 so I can use character classes
-	SHLIB_MAJOR=[`expr "$LIBVERSION" : '\([0-9]\)\..*'`]
-	SHLIB_MINOR=[`expr "$LIBVERSION" : '[0-9]\.\([0-9]\).*'`]
-	AC_SUBST(SHLIB_MAJOR)
-	AC_SUBST(SHLIB_MINOR)
-fi
-
-if test "$opt_static_libs" = "yes"; then
-	STATIC_TARGET=static
-	STATIC_INSTALL_TARGET=install-static
-fi
-if test "$opt_shared_libs" = "yes"; then
-	SHARED_TARGET=shared
-	SHARED_INSTALL_TARGET=install-shared
-fi
-
-AC_SUBST(STATIC_TARGET)
-AC_SUBST(SHARED_TARGET)
-AC_SUBST(STATIC_INSTALL_TARGET)
-AC_SUBST(SHARED_INSTALL_TARGET)
-
-if test "$opt_install_examples" = "yes"; then
-	EXAMPLES_INSTALL_TARGET=install-examples
-fi
-AC_SUBST(EXAMPLES_INSTALL_TARGET)
-
-case "$build_os" in
-msdosdjgpp*)	BUILD_DIR=`pwd.exe` ;;	# to prevent //d/path/file
-*)		BUILD_DIR=`pwd` ;;
-esac
-
-case "$BUILD_DIR" in
-*\ *)	BUILD_DIR=`echo "$BUILD_DIR" | sed 's: :\\\\ :g'` ;;
-*)	;;
-esac
-
-AC_SUBST(BUILD_DIR)
-
-AC_SUBST(CFLAGS)
-AC_SUBST(LOCAL_CFLAGS)
-AC_SUBST(LOCAL_LDFLAGS)
-AC_SUBST(LOCAL_DEFS)
-
-AC_SUBST(AR)
-AC_SUBST(ARFLAGS)
-
-AC_SUBST(host_cpu)
-AC_SUBST(host_os)
-
-AC_SUBST(LIBVERSION)
-
-AC_SUBST(TERMCAP_LIB)
-AC_SUBST(TERMCAP_PKG_CONFIG_LIB)
-
-AC_OUTPUT([Makefile doc/Makefile examples/Makefile shlib/Makefile readline.pc],
-[
-# Makefile uses this timestamp file to record whether config.h is up to date.
-echo > stamp-h
-])
+AC_CONFIG_SUBDIRS([readline])
+AC_CONFIG_FILES([Makefile])
+AC_OUTPUT

readline/readline/.gitignore

@@ -0,0 +1,37 @@
+Makefile
+
+*.o
+*.a
+*.so
+*.sl
+*.dll
+
+config.cache
+config.h
+config.log
+config.status
+
+doc/Makefile
+examples/Makefile
+shlib/Makefile
+
+examples/fileman
+examples/hist_erasedups
+examples/hist_purgecmd
+examples/histexamp
+examples/rl
+examples/rl-callbacktest
+examples/rlbasic
+examples/rlcat
+examples/rlevent
+examples/rltest
+examples/rlversion
+
+libhistory.so.*
+libreadline.so.*
+
+*.dylib
+
+readline.pc
+
+stamp-h

readline/readline/ChangeLog.gdb

@@ -1,4 +1,4 @@
-2019-09-23  Andrew Burgess  <andrew.burgess@embecosm.com>
+2019-10-23  Andrew Burgess  <andrew.burgess@embecosm.com>
 
 	PR cli/24980
 	* display.c (init_line_structures): Initialise line_state using

readline/readline/Makefile.in

@@ -0,0 +1,616 @@
+## -*- text -*- ##
+# Master Makefile for the GNU readline library.
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+#   This program is free software: you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation, either version 3 of the License, or
+#   (at your option) any later version.
+
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+
+#   You should have received a copy of the GNU General Public License
+#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+RL_LIBRARY_VERSION = @LIBVERSION@
+RL_LIBRARY_NAME = readline
+
+PACKAGE = @PACKAGE_NAME@
+VERSION = @PACKAGE_VERSION@
+
+PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
+PACKAGE_NAME = @PACKAGE_NAME@
+PACKAGE_STRING = @PACKAGE_STRING@
+PACKAGE_VERSION = @PACKAGE_VERSION@
+
+PACKAGE_TARNAME = @PACKAGE_TARNAME@
+
+srcdir = @srcdir@
+VPATH = @srcdir@
+top_srcdir = @top_srcdir@
+BUILD_DIR = @BUILD_DIR@
+
+INSTALL = @INSTALL@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_DATA = @INSTALL_DATA@
+
+CC = @CC@
+RANLIB = @RANLIB@
+AR = @AR@
+ARFLAGS = @ARFLAGS@
+RM = rm -f
+CP = cp
+MV = mv
+
+@SET_MAKE@
+SHELL = @MAKE_SHELL@
+
+prefix = @prefix@
+exec_prefix = @exec_prefix@
+
+datarootdir = @datarootdir@
+
+bindir = @bindir@
+libdir = @libdir@
+mandir = @mandir@
+includedir = @includedir@
+datadir = @datadir@
+localedir = @localedir@
+pkgconfigdir = ${libdir}/pkgconfig
+
+infodir = @infodir@
+
+docdir = @docdir@
+
+man3dir = $(mandir)/man3
+
+# Support an alternate destination root directory for package building
+DESTDIR =
+
+# Programs to make tags files.
+ETAGS = etags
+CTAGS = ctags -tw
+
+CFLAGS = @CFLAGS@
+LOCAL_CFLAGS = @LOCAL_CFLAGS@ -DRL_LIBRARY_VERSION='"$(RL_LIBRARY_VERSION)"'
+CPPFLAGS = @CPPFLAGS@
+
+DEFS = @DEFS@ @CROSS_COMPILE@
+LOCAL_DEFS = @LOCAL_DEFS@
+
+TERMCAP_LIB = @TERMCAP_LIB@
+
+# For libraries which include headers from other libraries.
+INCLUDES = -I. -I$(srcdir)
+
+XCCFLAGS = $(ASAN_CFLAGS) $(DEFS) $(LOCAL_DEFS) $(INCLUDES) $(CPPFLAGS)
+CCFLAGS = $(XCCFLAGS) $(LOCAL_CFLAGS) $(CFLAGS)
+
+# could add -Werror here
+GCC_LINT_FLAGS = -ansi -Wall -Wshadow -Wpointer-arith -Wcast-qual \
+		 -Wwrite-strings -Wstrict-prototypes \
+		 -Wmissing-prototypes -Wno-implicit -pedantic
+GCC_LINT_CFLAGS = $(XCCFLAGS) $(GCC_LINT_FLAGS) @CFLAGS@ @LOCAL_CFLAGS@
+
+ASAN_XCFLAGS = -fsanitize=address -fno-omit-frame-pointer
+ASAN_XLDFLAGS = -fsanitize=address
+
+install_examples = @EXAMPLES_INSTALL_TARGET@
+
+.c.o:
+	${RM} $@
+	$(CC) -c $(CCFLAGS) $<
+
+# The name of the main library target.
+LIBRARY_NAME = libreadline.a
+STATIC_LIBS = libreadline.a libhistory.a
+
+# The C code source files for this library.
+CSOURCES = $(srcdir)/readline.c $(srcdir)/funmap.c $(srcdir)/keymaps.c \
+	   $(srcdir)/vi_mode.c $(srcdir)/parens.c $(srcdir)/rltty.c \
+	   $(srcdir)/complete.c $(srcdir)/bind.c $(srcdir)/isearch.c \
+	   $(srcdir)/display.c $(srcdir)/signals.c $(srcdir)/emacs_keymap.c \
+	   $(srcdir)/vi_keymap.c $(srcdir)/util.c $(srcdir)/kill.c \
+	   $(srcdir)/undo.c $(srcdir)/macro.c $(srcdir)/input.c \
+	   $(srcdir)/callback.c $(srcdir)/terminal.c $(srcdir)/xmalloc.c $(srcdir)/xfree.c \
+	   $(srcdir)/history.c $(srcdir)/histsearch.c $(srcdir)/histexpand.c \
+	   $(srcdir)/histfile.c $(srcdir)/nls.c $(srcdir)/search.c \
+	   $(srcdir)/shell.c $(srcdir)/savestring.c $(srcdir)/tilde.c \
+	   $(srcdir)/text.c $(srcdir)/misc.c $(srcdir)/compat.c \
+	   $(srcdir)/mbutil.c
+
+# The header files for this library.
+HSOURCES = $(srcdir)/readline.h $(srcdir)/rldefs.h $(srcdir)/chardefs.h \
+	   $(srcdir)/keymaps.h $(srcdir)/history.h $(srcdir)/histlib.h \
+	   $(srcdir)/posixstat.h $(srcdir)/posixdir.h $(srcdir)/posixjmp.h \
+	   $(srcdir)/tilde.h $(srcdir)/rlconf.h $(srcdir)/rltty.h \
+	   $(srcdir)/ansi_stdlib.h $(srcdir)/tcap.h $(srcdir)/rlstdc.h \
+	   $(srcdir)/xmalloc.h $(srcdir)/rlprivate.h $(srcdir)/rlshell.h \
+	   $(srcdir)/rltypedefs.h $(srcdir)/rlmbutil.h \
+	   $(srcdir)/colors.h $(srcdir)/parse-colors.h
+
+HISTOBJ = history.o histexpand.o histfile.o histsearch.o shell.o mbutil.o
+TILDEOBJ = tilde.o
+COLORSOBJ = colors.o parse-colors.o
+OBJECTS = readline.o vi_mode.o funmap.o keymaps.o parens.o search.o \
+	  rltty.o complete.o bind.o isearch.o display.o signals.o \
+	  util.o kill.o undo.o macro.o input.o callback.o terminal.o \
+	  text.o nls.o misc.o $(HISTOBJ) $(TILDEOBJ) $(COLORSOBJ) \
+	  xmalloc.o xfree.o compat.o
+
+# The texinfo files which document this library.
+DOCSOURCE = doc/rlman.texinfo doc/rltech.texinfo doc/rluser.texinfo
+DOCOBJECT = doc/readline.dvi
+DOCSUPPORT = doc/Makefile
+DOCUMENTATION = $(DOCSOURCE) $(DOCOBJECT) $(DOCSUPPORT)
+
+CREATED_MAKEFILES = Makefile doc/Makefile examples/Makefile shlib/Makefile
+CREATED_CONFIGURE = config.status config.h config.cache config.log \
+		    stamp-config stamp-h readline.pc
+CREATED_TAGS = TAGS tags
+
+INSTALLED_HEADERS = readline.h chardefs.h keymaps.h history.h tilde.h \
+		    rlstdc.h rlconf.h rltypedefs.h
+
+OTHER_DOCS = $(srcdir)/CHANGES $(srcdir)/INSTALL $(srcdir)/README
+OTHER_INSTALLED_DOCS = CHANGES INSTALL README
+
+##########################################################################
+TARGETS = @STATIC_TARGET@ @SHARED_TARGET@
+INSTALL_TARGETS = @STATIC_INSTALL_TARGET@ @SHARED_INSTALL_TARGET@
+
+all: $(TARGETS)
+
+everything: all examples
+
+asan:
+	${MAKE} ${MFLAGS} ASAN_CFLAGS='${ASAN_XCFLAGS}' ASAN_LDFLAGS='${ASAN_XLDFLAGS}' everything
+
+static: $(STATIC_LIBS)
+
+libreadline.a: $(OBJECTS)
+	$(RM) $@
+	$(AR) $(ARFLAGS) $@ $(OBJECTS)
+	-test -n "$(RANLIB)" && $(RANLIB) $@
+
+libhistory.a: $(HISTOBJ) xmalloc.o xfree.o
+	$(RM) $@
+	$(AR) $(ARFLAGS) $@ $(HISTOBJ) xmalloc.o xfree.o
+	-test -n "$(RANLIB)" && $(RANLIB) $@
+
+# Since tilde.c is shared between readline and bash, make sure we compile
+# it with the right flags when it's built as part of readline
+tilde.o:	tilde.c
+	rm -f $@
+	$(CC) $(CCFLAGS) -DREADLINE_LIBRARY -c $(srcdir)/tilde.c
+
+readline: $(OBJECTS) readline.h rldefs.h chardefs.h ./libreadline.a
+	$(CC) $(CCFLAGS) -DREADLINE_LIBRARY -o $@ $(top_srcdir)/examples/rl.c ./libreadline.a ${TERMCAP_LIB}
+
+lint:	force
+	$(MAKE) $(MFLAGS) CCFLAGS='$(GCC_LINT_CFLAGS)' static
+
+Makefile makefile: config.status $(srcdir)/Makefile.in
+	CONFIG_FILES=Makefile CONFIG_HEADERS= $(SHELL) ./config.status
+
+Makefiles makefiles: config.status $(srcdir)/Makefile.in
+	@for mf in $(CREATED_MAKEFILES); do \
+		CONFIG_FILES=$$mf CONFIG_HEADERS= $(SHELL) ./config.status ; \
+	done
+
+config.status: configure
+	$(SHELL) ./config.status --recheck
+
+config.h:	stamp-h
+
+stamp-h: config.status $(srcdir)/config.h.in
+	CONFIG_FILES= CONFIG_HEADERS=config.h ./config.status
+	echo > $@
+
+#$(srcdir)/configure: $(srcdir)/configure.ac	## Comment-me-out in distribution
+#	cd $(srcdir) && autoconf	## Comment-me-out in distribution
+
+
+shared:	force
+	-test -d shlib || mkdir shlib
+	( cd shlib ; ${MAKE} ${MFLAGS} all )
+
+documentation: force
+	-test -d doc || mkdir doc
+	-( cd doc && $(MAKE) $(MFLAGS) )
+
+examples: force
+	-test -d examples || mkdir examples
+	-(cd examples && ${MAKE} ${MFLAGS} all )
+
+force:
+
+## GDB LOCAL
+## Don't mess with people's installed readline's.
+## This tries to install this version of readline over whatever
+## version is already installed on the system (which could be a
+## newer version). There is no real reason for us to install
+## readline along with GDB. GDB links statically against readline,
+## so it doesn't depend on us installing it on the system.
+
+install:
+
+#install:	$(INSTALL_TARGETS)
+
+install-headers: installdirs ${INSTALLED_HEADERS}
+	for f in ${INSTALLED_HEADERS}; do \
+		$(INSTALL_DATA) $(srcdir)/$$f $(DESTDIR)$(includedir)/readline ; \
+	done
+
+uninstall-headers:
+	-test -n "$(includedir)" && cd $(DESTDIR)$(includedir)/readline && \
+		${RM} ${INSTALLED_HEADERS}
+
+maybe-uninstall-headers: uninstall-headers
+
+install-pc: installdirs
+	-$(INSTALL_DATA) $(BUILD_DIR)/readline.pc $(DESTDIR)$(pkgconfigdir)/readline.pc
+
+uninstall-pc:
+	-test -n "$(pkgconfigdir)" && cd $(DESTDIR)$(pkgconfigdir) && \
+		${RM} readline.pc
+
+maybe-uninstall-pc: uninstall-pc
+
+install-static: installdirs $(STATIC_LIBS) install-headers install-doc ${install_examples} install-pc
+	-$(MV) $(DESTDIR)$(libdir)/libreadline.a $(DESTDIR)$(libdir)/libreadline.old
+	$(INSTALL_DATA) libreadline.a $(DESTDIR)$(libdir)/libreadline.a
+	-test -n "$(RANLIB)" && $(RANLIB) $(DESTDIR)$(libdir)/libreadline.a
+	-$(MV) $(DESTDIR)$(libdir)/libhistory.a $(DESTDIR)$(libdir)/libhistory.old
+	$(INSTALL_DATA) libhistory.a $(DESTDIR)$(libdir)/libhistory.a
+	-test -n "$(RANLIB)" && $(RANLIB) $(DESTDIR)$(libdir)/libhistory.a
+
+installdirs: $(srcdir)/support/mkinstalldirs
+	-$(SHELL) $(srcdir)/support/mkinstalldirs $(DESTDIR)$(includedir) \
+		$(DESTDIR)$(includedir)/readline $(DESTDIR)$(libdir) \
+		$(DESTDIR)$(infodir) $(DESTDIR)$(man3dir) $(DESTDIR)$(docdir) \
+		$(DESTDIR)$(pkgconfigdir)
+
+uninstall: uninstall-headers uninstall-doc uninstall-examples uninstall-pc
+	-test -n "$(DESTDIR)$(libdir)" && cd $(DESTDIR)$(libdir) && \
+		${RM} libreadline.a libreadline.old libhistory.a libhistory.old $(SHARED_LIBS)
+	-( cd shlib; ${MAKE} ${MFLAGS} DESTDIR=${DESTDIR} uninstall )
+
+install-shared: installdirs install-headers shared install-doc install-pc
+	( cd shlib ; ${MAKE} ${MFLAGS} DESTDIR=${DESTDIR} install )
+	
+uninstall-shared: maybe-uninstall-headers maybe-uninstall-pc
+	-( cd shlib; ${MAKE} ${MFLAGS} DESTDIR=${DESTDIR} uninstall )
+
+install-examples: installdirs install-headers
+	-( cd examples ; ${MAKE} ${MFLAGS} DESTDIR=${DESTDIR} install )
+	
+uninstall-examples: maybe-uninstall-headers
+	-( cd examples; ${MAKE} ${MFLAGS} DESTDIR=${DESTDIR} uninstall )
+
+install-doc:	installdirs
+	$(INSTALL_DATA) $(OTHER_DOCS) $(DESTDIR)$(docdir)
+	-( if test -d doc ; then \
+		cd doc && \
+		${MAKE} ${MFLAGS} infodir=$(infodir) DESTDIR=${DESTDIR} install; \
+	  fi )
+
+uninstall-doc:
+	-( cd $(DESTDIR)$(docdir) && ${RM} ${OTHER_INSTALLED_DOCS} )
+	-( if test -d doc ; then \
+		cd doc && \
+		${MAKE} ${MFLAGS} infodir=$(infodir) DESTDIR=${DESTDIR} uninstall; \
+	  fi )
+
+TAGS:	force
+	-( cd $(srcdir) && $(ETAGS) $(CSOURCES) $(HSOURCES) )
+
+tags:	force
+	-( cd $(srcdir) && $(CTAGS) $(CSOURCES) $(HSOURCES) )
+
+clean:	force
+	$(RM) $(OBJECTS) $(STATIC_LIBS)
+	$(RM) readline readline.exe
+	( cd shlib && $(MAKE) $(MFLAGS) $@ )
+	-( cd doc && $(MAKE) $(MFLAGS) $@ )
+	-( cd examples && $(MAKE) $(MFLAGS) $@ )
+
+mostlyclean: clean
+	( cd shlib && $(MAKE) $(MFLAGS) $@ )
+	-( cd doc && $(MAKE) $(MFLAGS) $@ )
+	-( cd examples && $(MAKE) $(MFLAGS) $@ )
+
+distclean maintainer-clean: clean
+	( cd shlib && $(MAKE) $(MFLAGS) $@ )
+	-( cd doc && $(MAKE) $(MFLAGS) $@ )
+	-( cd examples && $(MAKE) $(MFLAGS) $@ )
+	$(RM) Makefile
+	$(RM) $(CREATED_CONFIGURE)
+	$(RM) $(CREATED_TAGS)
+
+readline.pc:	config.status $(srcdir)/readline.pc.in
+	$(SHELL) config.status
+
+info dvi html pdf ps:
+	-( cd doc && $(MAKE) $(MFLAGS) $@ )
+
+install-info:
+install-dvi:
+install-html:
+install-pdf:
+install-ps:
+check:
+installcheck:
+
+dist:   force
+	@echo Readline distributions are created using $(srcdir)/support/mkdist.
+	@echo Here is a sample of the necessary commands:
+	@echo bash $(srcdir)/support/mkdist -m $(srcdir)/MANIFEST -s $(srcdir) -r $(RL_LIBRARY_NAME) $(RL_LIBRARY_VERSION)
+	@echo tar cf $(RL_LIBRARY_NAME)-${RL_LIBRARY_VERSION}.tar ${RL_LIBRARY_NAME}-$(RL_LIBRARY_VERSION)
+	@echo gzip $(RL_LIBRARY_NAME)-$(RL_LIBRARY_VERSION).tar
+
+# Tell versions [3.59,3.63) of GNU make not to export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
+
+# Dependencies
+bind.o: ansi_stdlib.h posixstat.h
+bind.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+bind.o: readline.h keymaps.h rltypedefs.h chardefs.h tilde.h rlstdc.h
+bind.o: history.h
+callback.o: rlconf.h
+callback.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+callback.o: readline.h keymaps.h rltypedefs.h chardefs.h tilde.h rlstdc.h
+compat.o: ${BUILD_DIR}/config.h
+compat.o: rlstdc.h rltypedefs.h
+complete.o: ansi_stdlib.h posixdir.h posixstat.h
+complete.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+complete.o: readline.h keymaps.h rltypedefs.h chardefs.h tilde.h rlstdc.h
+display.o: ansi_stdlib.h posixstat.h
+display.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+display.o: tcap.h
+display.o: readline.h keymaps.h rltypedefs.h chardefs.h tilde.h
+display.o: history.h rlstdc.h
+funmap.o: readline.h keymaps.h rltypedefs.h chardefs.h tilde.h
+funmap.o: rlconf.h ansi_stdlib.h rlstdc.h
+funmap.o: ${BUILD_DIR}/config.h
+histexpand.o: ansi_stdlib.h
+histexpand.o: history.h histlib.h rlstdc.h rltypedefs.h
+histexpand.o: ${BUILD_DIR}/config.h
+histfile.o: ansi_stdlib.h
+histfile.o: history.h histlib.h rlstdc.h rltypedefs.h
+histfile.o: ${BUILD_DIR}/config.h
+history.o: ansi_stdlib.h
+history.o: history.h histlib.h rlstdc.h rltypedefs.h
+history.o: ${BUILD_DIR}/config.h
+histsearch.o: ansi_stdlib.h
+histsearch.o: history.h histlib.h rlstdc.h rltypedefs.h
+histsearch.o: ${BUILD_DIR}/config.h
+input.o: ansi_stdlib.h
+input.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+input.o: readline.h keymaps.h rltypedefs.h chardefs.h tilde.h rlstdc.h
+isearch.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+isearch.o: readline.h keymaps.h rltypedefs.h chardefs.h tilde.h
+isearch.o: ansi_stdlib.h history.h rlstdc.h
+keymaps.o: emacs_keymap.c vi_keymap.c
+keymaps.o: keymaps.h rltypedefs.h chardefs.h rlconf.h ansi_stdlib.h
+keymaps.o: readline.h keymaps.h rltypedefs.h chardefs.h tilde.h
+keymaps.o: ${BUILD_DIR}/config.h rlstdc.h
+kill.o: ansi_stdlib.h
+kill.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+kill.o: readline.h keymaps.h rltypedefs.h chardefs.h tilde.h
+kill.o: history.h rlstdc.h
+macro.o: ansi_stdlib.h
+macro.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+macro.o: readline.h keymaps.h rltypedefs.h chardefs.h tilde.h
+macro.o: history.h rlstdc.h
+mbutil.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+mbutil.o: readline.h keymaps.h rltypedefs.h chardefs.h rlstdc.h
+misc.o: readline.h keymaps.h rltypedefs.h chardefs.h tilde.h
+misc.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+misc.o: history.h rlstdc.h ansi_stdlib.h
+nls.o: ansi_stdlib.h
+nls.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+nls.o: readline.h keymaps.h rltypedefs.h chardefs.h tilde.h  
+nls.o: history.h rlstdc.h  
+parens.o: rlconf.h
+parens.o: ${BUILD_DIR}/config.h
+parens.o: readline.h keymaps.h rltypedefs.h chardefs.h tilde.h rlstdc.h
+readline.o: readline.h keymaps.h rltypedefs.h chardefs.h tilde.h
+readline.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+readline.o: history.h rlstdc.h
+readline.o: posixstat.h ansi_stdlib.h posixjmp.h
+rltty.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+rltty.o: rltty.h
+rltty.o: readline.h keymaps.h rltypedefs.h chardefs.h tilde.h rlstdc.h
+savestring.o: ${BUILD_DIR}/config.h
+search.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+search.o: readline.h keymaps.h rltypedefs.h chardefs.h tilde.h
+search.o: ansi_stdlib.h history.h rlstdc.h
+shell.o: ${BUILD_DIR}/config.h
+shell.o: ansi_stdlib.h
+signals.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+signals.o: readline.h keymaps.h rltypedefs.h chardefs.h tilde.h
+signals.o: history.h rlstdc.h
+terminal.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+terminal.o: tcap.h
+terminal.o: readline.h keymaps.h rltypedefs.h chardefs.h tilde.h
+terminal.o: history.h rlstdc.h
+text.o: readline.h keymaps.h rltypedefs.h chardefs.h tilde.h
+text.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+text.o: history.h rlstdc.h ansi_stdlib.h
+tilde.o: ansi_stdlib.h
+tilde.o: ${BUILD_DIR}/config.h
+tilde.o: tilde.h
+undo.o: ansi_stdlib.h
+undo.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+undo.o: readline.h keymaps.h rltypedefs.h chardefs.h tilde.h
+undo.o: history.h rlstdc.h
+util.o: posixjmp.h ansi_stdlib.h
+util.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+util.o: readline.h keymaps.h rltypedefs.h chardefs.h tilde.h rlstdc.h
+vi_mode.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+vi_mode.o: readline.h keymaps.h rltypedefs.h chardefs.h tilde.h
+vi_mode.o: history.h ansi_stdlib.h rlstdc.h
+xfree.o: ${BUILD_DIR}/config.h
+xfree.o: ansi_stdlib.h
+xmalloc.o: ${BUILD_DIR}/config.h
+xmalloc.o: ansi_stdlib.h
+
+colors.o: ${BUILD_DIR}/config.h colors.h
+colors.o: readline.h keymaps.h rltypedefs.h chardefs.h tilde.h rlstdc.h
+colors.o: rlconf.h  
+colors.o: ansi_stdlib.h posixstat.h
+parse-colors.o: ${BUILD_DIR}/config.h colors.h parse-colors.h
+parse-colors.o: rldefs.h rlconf.h
+parse-colors.o: readline.h keymaps.h rltypedefs.h chardefs.h tilde.h rlstdc.h
+
+bind.o: rlshell.h
+histfile.o: rlshell.h
+nls.o: rlshell.h
+readline.o: rlshell.h
+shell.o: rlshell.h
+terminal.o: rlshell.h
+histexpand.o: rlshell.h
+
+bind.o: rlprivate.h
+callback.o: rlprivate.h
+complete.o: rlprivate.h
+display.o: rlprivate.h
+input.o: rlprivate.h
+isearch.o: rlprivate.h
+kill.o: rlprivate.h
+macro.o: rlprivate.h
+mbutil.o: rlprivate.h
+misc.o: rlprivate.h
+nls.o: rlprivate.h   
+parens.o: rlprivate.h
+readline.o: rlprivate.h
+rltty.o: rlprivate.h 
+search.o: rlprivate.h
+signals.o: rlprivate.h
+terminal.o: rlprivate.h
+text.o: rlprivate.h
+undo.o: rlprivate.h
+util.o: rlprivate.h
+vi_mode.o: rlprivate.h
+colors.o: rlprivate.h
+parse-colors.o: rlprivate.h
+
+bind.o: xmalloc.h
+callback.o: xmalloc.h
+complete.o: xmalloc.h
+display.o: xmalloc.h
+funmap.o: xmalloc.h
+histexpand.o: xmalloc.h
+histfile.o: xmalloc.h
+history.o: xmalloc.h
+input.o: xmalloc.h
+isearch.o: xmalloc.h
+keymaps.o: xmalloc.h
+kill.o: xmalloc.h
+macro.o: xmalloc.h
+mbutil.o: xmalloc.h
+misc.o: xmalloc.h
+readline.o: xmalloc.h
+savestring.o: xmalloc.h
+search.o: xmalloc.h
+shell.o: xmalloc.h
+terminal.o: xmalloc.h
+text.o: xmalloc.h
+tilde.o: xmalloc.h
+undo.o: xmalloc.h
+util.o: xmalloc.h
+vi_mode.o: xmalloc.h
+xfree.o: xmalloc.h
+xmalloc.o: xmalloc.h
+colors.o: xmalloc.h
+parse-colors.o: xmalloc.h
+
+complete.o: rlmbutil.h
+display.o: rlmbutil.h
+histexpand.o: rlmbutil.h
+input.o: rlmbutil.h    
+isearch.o: rlmbutil.h
+mbutil.o: rlmbutil.h
+misc.o: rlmbutil.h
+readline.o: rlmbutil.h
+search.o: rlmbutil.h 
+text.o: rlmbutil.h
+vi_mode.o: rlmbutil.h
+
+bind.o: $(srcdir)/bind.c
+callback.o: $(srcdir)/callback.c
+compat.o: $(srcdir)/compat.c
+complete.o: $(srcdir)/complete.c
+display.o: $(srcdir)/display.c
+funmap.o: $(srcdir)/funmap.c
+input.o: $(srcdir)/input.c
+isearch.o: $(srcdir)/isearch.c
+keymaps.o: $(srcdir)/keymaps.c $(srcdir)/emacs_keymap.c $(srcdir)/vi_keymap.c
+kill.o: $(srcdir)/kill.c
+macro.o: $(srcdir)/macro.c
+mbutil.o: $(srcdir)/mbutil.c
+misc.o: $(srcdir)/misc.c
+nls.o: $(srcdir)/nls.c
+parens.o: $(srcdir)/parens.c
+readline.o: $(srcdir)/readline.c
+rltty.o: $(srcdir)/rltty.c
+savestring.o: $(srcdir)/savestring.c
+search.o: $(srcdir)/search.c
+shell.o: $(srcdir)/shell.c
+signals.o: $(srcdir)/signals.c
+terminal.o: $(srcdir)/terminal.c
+text.o: $(srcdir)/text.c
+tilde.o: $(srcdir)/tilde.c
+undo.o: $(srcdir)/undo.c
+util.o: $(srcdir)/util.c
+vi_mode.o: $(srcdir)/vi_mode.c
+xfree.o: $(srcdir)/xfree.c
+xmalloc.o: $(srcdir)/xmalloc.c
+
+colors.o: $(srcdir)/parse-colors.c
+parse-colors.o: $(srcdir)/parse-colors.c
+
+histexpand.o: $(srcdir)/histexpand.c
+histfile.o: $(srcdir)/histfile.c
+history.o: $(srcdir)/history.c
+histsearch.o: $(srcdir)/histsearch.c
+
+bind.o: bind.c
+callback.o: callback.c
+compat.o: compat.c
+complete.o: complete.c
+display.o: display.c
+funmap.o: funmap.c
+input.o: input.c
+isearch.o: isearch.c
+keymaps.o: keymaps.c emacs_keymap.c vi_keymap.c
+kill.o: kill.c
+macro.o: macro.c
+mbutil.o: mbutil.c
+misc.o: misc.c
+nls.o: nls.c
+parens.o: parens.c
+readline.o: readline.c
+rltty.o: rltty.c
+savestring.o: savestring.c
+search.o: search.c
+shell.o: shell.c
+signals.o: signals.c
+terminal.o: terminal.c
+text.o: text.c
+tilde.o: tilde.c
+undo.o: undo.c
+util.o: util.c
+vi_mode.o: vi_mode.c
+xfree.o: xfree.c
+xmalloc.o: xmalloc.c
+
+histexpand.o: histexpand.c
+histfile.o: histfile.c
+history.o: history.c
+histsearch.o: histsearch.c

readline/readline/README

@@ -0,0 +1,196 @@
+Introduction
+============
+
+This is the Gnu Readline library, version 8.0.
+
+The Readline library provides a set of functions for use by applications
+that allow users to edit command lines as they are typed in.  Both
+Emacs and vi editing modes are available.  The Readline library includes
+additional functions to maintain a list of previously-entered command
+lines, to recall and perhaps reedit those lines, and perform csh-like
+history expansion on previous commands.
+
+The history facilites are also placed into a separate library, the
+History library, as part of the build process.  The History library
+may be used without Readline in applications which desire its
+capabilities.
+
+The Readline library is free software, distributed under the terms of
+the [GNU] General Public License as published by the Free Software
+Foundation, version 3 of the License.  For more information, see the
+file COPYING.
+
+To build the library, try typing `./configure', then `make'.  The
+configuration process is automated, so no further intervention should
+be necessary.  Readline builds with `gcc' by default if it is
+available.  If you want to use `cc' instead, type
+
+        CC=cc ./configure
+
+if you are using a Bourne-style shell.  If you are not, the following
+may work:
+
+        env CC=cc ./configure
+
+Read the file INSTALL in this directory for more information about how
+to customize and control the build process.
+
+The file rlconf.h contains C preprocessor defines that enable and disable
+certain Readline features.
+
+The special make target `everything' will build the static and shared
+libraries (if the target platform supports them) and the examples.
+
+Examples
+========
+
+There are several example programs that use Readline features in the
+examples directory.  The `rl' program is of particular interest.  It
+is a command-line interface to Readline, suitable for use in shell
+scripts in place of `read'.
+
+Shared Libraries
+================
+
+There is skeletal support for building shared versions of the
+Readline and History libraries.  The configure script creates
+a Makefile in the `shlib' subdirectory, and typing `make shared'
+will cause shared versions of the Readline and History libraries
+to be built on supported platforms.
+
+If `configure' is given the `--enable-shared' option, it will attempt
+to build the shared libraries by default on supported platforms.
+
+Configure calls the script support/shobj-conf to test whether or
+not shared library creation is supported and to generate the values
+of variables that are substituted into shlib/Makefile.  If you
+try to build shared libraries on an unsupported platform, `make'
+will display a message asking you to update support/shobj-conf for
+your platform.
+
+If you need to update support/shobj-conf, you will need to create
+a `stanza' for your operating system and compiler.  The script uses
+the value of host_os and ${CC} as determined by configure.  For
+instance, FreeBSD 4.2 with any version of gcc is identified as
+`freebsd4.2-gcc*'.
+
+In the stanza for your operating system-compiler pair, you will need to
+define several variables.  They are:
+
+SHOBJ_CC	The C compiler used to compile source files into shareable
+		object files.  This is normally set to the value of ${CC}
+		by configure, and should not need to be changed.
+
+SHOBJ_CFLAGS	Flags to pass to the C compiler ($SHOBJ_CC) to create
+		position-independent code.  If you are using gcc, this
+		should probably be set to `-fpic'.
+
+SHOBJ_LD	The link editor to be used to create the shared library from
+		the object files created by $SHOBJ_CC.  If you are using
+		gcc, a value of `gcc' will probably work.
+
+SHOBJ_LDFLAGS	Flags to pass to SHOBJ_LD to enable shared object creation.
+		If you are using gcc, `-shared' may be all that is necessary.
+		These should be the flags needed for generic shared object
+		creation.
+
+SHLIB_XLDFLAGS	Additional flags to pass to SHOBJ_LD for shared library
+		creation.  Many systems use the -R option to the link
+		editor to embed a path within the library for run-time
+		library searches.  A reasonable value for such systems would
+		be `-R$(libdir)'.
+
+SHLIB_LIBS	Any additional libraries that shared libraries should be
+		linked against when they are created.
+
+SHLIB_LIBPREF	The prefix to use when generating the filename of the shared
+		library.  The default is `lib'; Cygwin uses `cyg'.
+
+SHLIB_LIBSUFF	The suffix to add to `libreadline' and `libhistory' when
+		generating the filename of the shared library.  Many systems
+		use `so'; HP-UX uses `sl'.
+
+SHLIB_LIBVERSION The string to append to the filename to indicate the version
+		of the shared library.  It should begin with $(SHLIB_LIBSUFF),
+		and possibly include version information that allows the
+		run-time loader to load the version of the shared library
+		appropriate for a particular program.  Systems using shared
+		libraries similar to SunOS 4.x use major and minor library
+		version numbers; for those systems a value of
+		`$(SHLIB_LIBSUFF).$(SHLIB_MAJOR)$(SHLIB_MINOR)' is appropriate.
+		Systems based on System V Release 4 don't use minor version
+		numbers; use `$(SHLIB_LIBSUFF).$(SHLIB_MAJOR)' on those systems.
+		Other Unix versions use different schemes.
+
+SHLIB_DLLVERSION The version number for shared libraries that determines API
+		compatibility between readline versions and the underlying
+		system.  Used only on Cygwin.  Defaults to $SHLIB_MAJOR, but
+		can be overridden at configuration time by defining DLLVERSION
+		in the environment.
+
+SHLIB_DOT	The character used to separate the name of the shared library
+		from the suffix and version information.  The default is `.';
+		systems like Cygwin which don't separate version information
+		from the library name should set this to the empty string.
+
+SHLIB_STATUS	Set this to `supported' when you have defined the other
+		necessary variables.  Make uses this to determine whether
+		or not shared library creation should be attempted.
+
+You should look at the existing stanzas in support/shobj-conf for ideas.
+
+Once you have updated support/shobj-conf, re-run configure and type
+`make shared'.  The shared libraries will be created in the shlib
+subdirectory.
+
+If shared libraries are created, `make install' will install them. 
+You may install only the shared libraries by running `make
+install-shared' from the top-level build directory.  Running `make
+install' in the shlib subdirectory will also work.  If you don't want
+to install any created shared libraries, run `make install-static'. 
+
+Documentation
+=============
+
+The documentation for the Readline and History libraries appears in
+the `doc' subdirectory.  There are three texinfo files and a
+Unix-style manual page describing the facilities available in the
+Readline library.  The texinfo files include both user and
+programmer's manuals.  HTML versions of the manuals appear in the
+`doc' subdirectory as well. 
+
+Usage
+=====
+
+Our position on the use of Readline through a shared-library linking
+mechanism is that there is no legal difference between shared-library
+linking and static linking--either kind of linking combines various
+modules into a single larger work.  The conditions for using Readline
+in a larger work are stated in section 3 of the GNU GPL.
+
+Reporting Bugs
+==============
+
+Bug reports for Readline should be sent to:
+
+        bug-readline@gnu.org
+
+When reporting a bug, please include the following information:
+
+        * the version number and release status of Readline (e.g., 4.2-release)
+        * the machine and OS that it is running on
+        * a list of the compilation flags or the contents of `config.h', if
+          appropriate
+        * a description of the bug
+        * a recipe for recreating the bug reliably
+        * a fix for the bug if you have one!
+
+If you would like to contact the Readline maintainer directly, send mail
+to bash-maintainers@gnu.org.
+
+Since Readline is developed along with bash, the bug-bash@gnu.org mailing
+list (mirrored to the Usenet newsgroup gnu.bash.bug) often contains
+Readline bug reports and fixes. 
+
+Chet Ramey
+chet.ramey@case.edu

readline/readline/configure.ac

@@ -0,0 +1,320 @@
+dnl
+dnl Configure script for readline library
+dnl
+dnl report bugs to chet@po.cwru.edu
+dnl
+dnl Process this file with autoconf to produce a configure script.
+
+# Copyright (C) 1987-2018 Free Software Foundation, Inc.
+
+#   This program is free software: you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation, either version 3 of the License, or
+#   (at your option) any later version.
+
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+
+#   You should have received a copy of the GNU General Public License
+#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+AC_REVISION([for Readline 8.0, version 2.85])
+
+m4_include([../../config/override.m4])
+
+AC_INIT(readline, 8.0, bug-readline@gnu.org)
+
+dnl make sure we are using a recent autoconf version
+AC_PREREQ(2.50)
+
+AC_CONFIG_SRCDIR(readline.h)
+dnl GDB LOCAL
+dnl AC_CONFIG_AUX_DIR(./support)
+AC_CONFIG_AUX_DIR(../..)
+AC_CONFIG_HEADERS(config.h)
+
+dnl update the value of RL_READLINE_VERSION in readline.h when this changes
+LIBVERSION=8.0
+
+AC_CANONICAL_HOST
+AC_CANONICAL_BUILD
+
+dnl configure defaults
+opt_curses=no
+
+dnl arguments to configure
+AC_ARG_WITH(curses, AC_HELP_STRING([--with-curses], [use the curses library instead of the termcap library]), opt_curses=$withval)
+
+if test "$opt_curses" = "yes"; then
+	prefer_curses=yes
+fi
+
+dnl option parsing for optional features
+opt_multibyte=yes
+opt_static_libs=yes
+opt_shared_libs=no
+opt_install_examples=no
+
+AC_ARG_ENABLE(multibyte, AC_HELP_STRING([--enable-multibyte], [enable multibyte characters if OS supports them]), opt_multibyte=$enableval)
+dnl AC_ARG_ENABLE(shared, AC_HELP_STRING([--enable-shared], [build shared libraries [[default=YES]]]), opt_shared_libs=$enableval)
+AC_ARG_ENABLE(static, AC_HELP_STRING([--enable-static], [build static libraries [[default=YES]]]), opt_static_libs=$enableval)
+AC_ARG_ENABLE(install-examples, AC_HELP_STRING([--disable-install-examples], [don't install examples [[default=install]]]), opt_install_examples=$enableval)
+
+if test $opt_multibyte = no; then
+AC_DEFINE(NO_MULTIBYTE_SUPPORT)
+fi
+
+dnl load up the cross-building cache file -- add more cases and cache
+dnl files as necessary
+
+dnl Note that host and target machine are the same, and different than the
+dnl build machine.
+
+CROSS_COMPILE=
+if test "x$cross_compiling" = "xyes"; then
+    case "${host}" in
+    *-cygwin*)
+        cross_cache=${srcdir}/cross-build/cygwin.cache
+        ;;
+    *-mingw*)
+        cross_cache=${srcdir}/cross-build/mingw.cache
+        ;;
+    i[[3456]]86-*-beos*)
+        cross_cache=${srcdir}/cross-build/x86-beos.cache
+        ;;
+    *)  echo "configure: cross-compiling for $host is not supported" >&2
+        ;;
+    esac
+    if test -n "${cross_cache}" && test -r "${cross_cache}"; then
+        echo "loading cross-build cache file ${cross_cache}"
+        . ${cross_cache}
+    fi
+    unset cross_cache
+    CROSS_COMPILE='-DCROSS_COMPILING'
+    AC_SUBST(CROSS_COMPILE)
+fi
+
+echo ""
+echo "Beginning configuration for readline-$LIBVERSION for ${host_cpu}-${host_vendor}-${host_os}"
+echo ""
+
+# We want these before the checks, so the checks can modify their values.
+test -z "$CFLAGS" && CFLAGS=-g auto_cflags=1
+
+AC_PROG_MAKE_SET
+AC_PROG_CC
+dnl AC_AIX
+AC_MINIX
+
+# If we're using gcc and the user hasn't specified CFLAGS, add -O to CFLAGS.
+test -n "$GCC" && test -n "$auto_cflags" && CFLAGS="$CFLAGS -O"
+
+AC_PROG_GCC_TRADITIONAL
+AC_PROG_INSTALL
+AC_CHECK_TOOL(AR, ar)
+dnl Set default for ARFLAGS, since autoconf does not have a macro for it.
+dnl This allows people to set it when running configure or make
+test -n "$ARFLAGS" || ARFLAGS="cr"
+AC_PROG_RANLIB
+
+MAKE_SHELL=/bin/sh
+AC_SUBST(MAKE_SHELL)
+
+AC_C_CONST
+AC_C_PROTOTYPES
+AC_C_CHAR_UNSIGNED
+AC_C_VOLATILE
+
+AC_TYPE_SIGNAL
+
+AC_TYPE_SIZE_T
+AC_CHECK_TYPE(ssize_t, int)
+
+AC_HEADER_STDC
+
+AC_HEADER_STAT
+AC_HEADER_DIRENT
+
+AC_CHECK_FUNCS(fcntl kill lstat readlink)
+AC_CHECK_FUNCS(fnmatch memmove pselect putenv select setenv setlocale \
+		strcasecmp strpbrk tcgetattr vsnprintf)
+AC_CHECK_FUNCS(isascii isxdigit)
+AC_CHECK_FUNCS(getpwent getpwnam getpwuid)
+
+AC_FUNC_CHOWN
+AC_FUNC_STRCOLL
+
+AC_CHECK_HEADERS(fcntl.h unistd.h stdlib.h varargs.h stdarg.h stdbool.h \
+		string.h strings.h \
+		limits.h locale.h pwd.h memory.h termcap.h termios.h termio.h)
+AC_CHECK_HEADERS(sys/ioctl.h sys/pte.h sys/stream.h sys/select.h sys/file.h)
+
+AC_CHECK_HEADERS(sys/ptem.h,,,
+[[
+#if HAVE_SYS_STREAM_H
+#  include <sys/stream.h>
+#endif
+]])
+
+AC_SYS_LARGEFILE
+
+BASH_SYS_SIGNAL_VINTAGE
+BASH_SYS_REINSTALL_SIGHANDLERS
+
+BASH_FUNC_POSIX_SETJMP
+BASH_FUNC_LSTAT
+BASH_FUNC_STRCOLL
+BASH_FUNC_CTYPE_NONASCII
+
+BASH_CHECK_GETPW_FUNCS
+
+AC_HEADER_TIOCGWINSZ
+
+BASH_TYPE_SIG_ATOMIC_T
+BASH_TYPE_SIGHANDLER
+
+BASH_HAVE_TIOCSTAT
+BASH_HAVE_FIONREAD
+BASH_CHECK_SPEED_T
+BASH_STRUCT_WINSIZE
+BASH_STRUCT_DIRENT_D_INO
+BASH_STRUCT_DIRENT_D_FILENO
+
+AC_CHECK_HEADERS(libaudit.h)
+AC_CHECK_DECLS([AUDIT_USER_TTY],,, [[#include <linux/audit.h>]])
+
+dnl yuck
+case "$host_os" in
+aix*)   prefer_curses=yes ;;
+esac
+BASH_CHECK_LIB_TERMCAP
+if test "$TERMCAP_LIB" = "./lib/termcap/libtermcap.a"; then
+	if test "$prefer_curses" = yes; then
+		TERMCAP_LIB=-lcurses
+	else
+		TERMCAP_LIB=-ltermcap	#default
+	fi
+fi
+# Windows ncurses installation
+if test "$TERMCAP_LIB" = "-lncurses"; then
+	AC_CHECK_HEADERS(ncurses/termcap.h)
+fi
+
+case "$TERMCAP_LIB" in
+-ltinfo)  TERMCAP_PKG_CONFIG_LIB=tinfo ;;
+-lcurses) TERMCAP_PKG_CONFIG_LIB=ncurses ;;
+-lncurses) TERMCAP_PKG_CONFIG_LIB=ncurses ;;
+-ltermcap) TERMCAP_PKG_CONFIG_LIB=termcap ;;
+*) TERMCAP_PKG_CONFIG_LIB=termcap ;;
+esac
+
+BASH_CHECK_MULTIBYTE
+
+case "$host_cpu" in
+*cray*)	LOCAL_CFLAGS=-DCRAY ;;
+*s390*) LOCAL_CFLAGS=-fsigned-char ;;
+esac
+
+case "$host_os" in
+isc*)	LOCAL_CFLAGS=-Disc386 ;;
+esac
+
+# shared library configuration section
+#
+# Shared object configuration section.  These values are generated by
+# ${srcdir}/support/shobj-conf
+#
+if test -f ${srcdir}/support/shobj-conf; then
+        AC_MSG_CHECKING(configuration for building shared libraries)
+        eval `TERMCAP_LIB=$TERMCAP_LIB ${CONFIG_SHELL-/bin/sh} ${srcdir}/support/shobj-conf -C "${CC}" -c ${host_cpu} -o ${host_os} -v ${host_vendor}`
+
+#	case "$SHLIB_LIBS" in
+#	*curses*|*termcap*|*termlib*)	;;
+#	*)			SHLIB_LIBS="$SHLIB_LIBS $TERMCAP_LIB" ;;
+#	esac
+	
+        AC_SUBST(SHOBJ_CC)
+        AC_SUBST(SHOBJ_CFLAGS)
+        AC_SUBST(SHOBJ_LD)
+        AC_SUBST(SHOBJ_LDFLAGS)
+	AC_SUBST(SHOBJ_XLDFLAGS)
+        AC_SUBST(SHOBJ_LIBS)
+        AC_SUBST(SHOBJ_STATUS)
+	AC_SUBST(SHLIB_STATUS)
+	AC_SUBST(SHLIB_XLDFLAGS)
+	AC_SUBST(SHLIB_DOT)
+	AC_SUBST(SHLIB_LIBPREF)
+	AC_SUBST(SHLIB_LIBSUFF)
+	AC_SUBST(SHLIB_LIBVERSION)
+	AC_SUBST(SHLIB_DLLVERSION)
+	AC_SUBST(SHLIB_LIBS)
+        AC_MSG_RESULT($SHLIB_STATUS)
+
+	# SHLIB_STATUS is either `supported' or `unsupported'.  If it's
+	# `unsupported', turn off any default shared library building
+	if test "$SHLIB_STATUS" = 'unsupported'; then
+		opt_shared_libs=no
+	fi
+
+	# shared library versioning
+	# quoted for m4 so I can use character classes
+	SHLIB_MAJOR=[`expr "$LIBVERSION" : '\([0-9]\)\..*'`]
+	SHLIB_MINOR=[`expr "$LIBVERSION" : '[0-9]\.\([0-9]\).*'`]
+	AC_SUBST(SHLIB_MAJOR)
+	AC_SUBST(SHLIB_MINOR)
+fi
+
+if test "$opt_static_libs" = "yes"; then
+	STATIC_TARGET=static
+	STATIC_INSTALL_TARGET=install-static
+fi
+if test "$opt_shared_libs" = "yes"; then
+	SHARED_TARGET=shared
+	SHARED_INSTALL_TARGET=install-shared
+fi
+
+AC_SUBST(STATIC_TARGET)
+AC_SUBST(SHARED_TARGET)
+AC_SUBST(STATIC_INSTALL_TARGET)
+AC_SUBST(SHARED_INSTALL_TARGET)
+
+if test "$opt_install_examples" = "yes"; then
+	EXAMPLES_INSTALL_TARGET=install-examples
+fi
+AC_SUBST(EXAMPLES_INSTALL_TARGET)
+
+case "$build_os" in
+msdosdjgpp*)	BUILD_DIR=`pwd.exe` ;;	# to prevent //d/path/file
+*)		BUILD_DIR=`pwd` ;;
+esac
+
+case "$BUILD_DIR" in
+*\ *)	BUILD_DIR=`echo "$BUILD_DIR" | sed 's: :\\\\ :g'` ;;
+*)	;;
+esac
+
+AC_SUBST(BUILD_DIR)
+
+AC_SUBST(CFLAGS)
+AC_SUBST(LOCAL_CFLAGS)
+AC_SUBST(LOCAL_LDFLAGS)
+AC_SUBST(LOCAL_DEFS)
+
+AC_SUBST(AR)
+AC_SUBST(ARFLAGS)
+
+AC_SUBST(host_cpu)
+AC_SUBST(host_os)
+
+AC_SUBST(LIBVERSION)
+
+AC_SUBST(TERMCAP_LIB)
+AC_SUBST(TERMCAP_PKG_CONFIG_LIB)
+
+AC_OUTPUT([Makefile doc/Makefile examples/Makefile shlib/Makefile readline.pc],
+[
+# Makefile uses this timestamp file to record whether config.h is up to date.
+echo > stamp-h
+])

readline/readline/doc/ChangeLog.gdb

@@ -1,4 +1,4 @@
-2011-05-11  Jan Kratochvil  <jan.kratochvil@redhat.com>
+2019-10-23  Jan Kratochvil  <jan.kratochvil@redhat.com>
 
 	* hsuser.texi (Using History Interactively): Disable !BashFeatures
 	@defcodeindex.  Make the `Programming with GNU History' reference

readline/readline/examples/ChangeLog.gdb

@@ -1,4 +1,4 @@
-2011-05-11  Jan Kratochvil  <jan.kratochvil@redhat.com>
+2019-10-23  Jan Kratochvil  <jan.kratochvil@redhat.com>
 
 	Imported readline 6.2, and upstream patch 001.
 

readline/readline/examples/rlfe/ChangeLog

@@ -1,4 +1,4 @@
-2004-11-04  Per Bothner  <per@bothner.com>
+2019-10-23  Per Bothner  <per@bothner.com>
 
 	* pty.c:  Import from screen-4.0.2.
 	* configure.in, Makefile.in, config.h.in:  Set up autoconf handling,

readline/readline/examples/rlfe/ChangeLog.gdb

@@ -1,4 +1,4 @@
-2011-05-11  Jan Kratochvil  <jan.kratochvil@redhat.com>
+2019-10-23  Jan Kratochvil  <jan.kratochvil@redhat.com>
 
 	Imported readline 6.2, and upstream patch 001.