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 a8a5dbcab8df0b3a9e04745d4fe8d64740acb323.

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

1 files changed, 0 insertions, 1353 deletions

diff --git a/readline/CHANGELOG b/readline/CHANGELOG
deleted file mode 100644
index 18265ab..0000000
--- a/readline/CHANGELOG
+++ /dev/null
@@ -1,1353 +0,0 @@
-[Readline-specific changelog.  Descriptions of changes to the source are
- found in the bash changelog.]
-
-				    6/9
-				    ---
-Makefile.in
-	- quote value of ${INSTALL_DATA} when passing it to makes in
-	  subdirectories
-
-				    7/1
-				    ---
-Makefile.in
-	- don't pass INSTALL_DATA to a make in the `doc' subdirectory; let
-	  autoconf set the value itself in the Makefile
-	- removed a stray `-' before $(RANLIB) in the `install' recipe
-
-doc/Makefile.in
-	- add a VPATH assignment so the documentation is not remade if it's
-	  already up-to-date in the distribution
-
-configure.in
-	- call AC_SUBST(LOCAL_LDFLAGS), since Makefile.in contains
-	  @LOCAL_LDFLAGS@
-
-				    7/9
-				    ---
-
-config.h.in
-	- add define lines for STRUCT_WINSIZE_IN_SYS_IOCTL and
-	  STRUCT_WINSIZE_IN_TERMIOS
-
-configure.in
-	- call BASH_STRUCT_WINSIZE to look for the definition of
-	  `struct winsize'
-
-				   7/17
-				   ----
-configure.in
-	- call AC_MINIX
-
-config.h.in
-	- add define line for AC_MINIX
-
-				   7/18
-				   ----
-Makefile.in
-	- add `install-shared' and `uninstall-shared' targets
-
-				    8/4
-				    ---
-Makefile.in
-	- install and uninstall libhistory.a in the `install' and
-	  `uninstall' targets
-
-				    9/4
-				    ---
-configure.in
-	- bumped LIBVERSION up to 2.1.1, indicating that this is patch
-	  level 1 to release 2.1
-
-
-				   9/16
-				   ----
-Makefile.in
-	- `make distclean' now descends into the `examples' subdir
-
-doc/Makefile.in
-	- the `distclean' and `maintainer-clean' targets should remove
-	  Makefile
-
-examples/Makefile.in
-	- added the various clean targets
-
-				    4/2
-				    ---
-configure.in
-	- bumped LIBVERSION up to 2.2
-
-				   4/18
-				   ----
-[readline-2.2 released]
-
-				   4/20
-				   ----
-Makefile.in
-	- make `libhistory.a' a dependency of `install'
-	- fixed a typo in the recipe for `install' that copied libreadline.a
-	  to libhistory.old right after installing it
-
-				   4/27
-				   ----
-doc/Makefile.in
-	- install {readline,history}.info out of the source directory if
-	  they are not found in the current (build) directory -- only an
-	  issue if the libraries are built in a different directory than
-	  the source directory
-
-				    5/1
-				    ---
-support/shobj-conf
-	- script from the bash distribution to do shared object and library
-	  configuration
-
-shlib/Makefile.in
-	- new directory and makefile to handle building shared versions of
-	  libreadline and libhistory, controlled by support/shobj-conf
-
-				    5/7
-				    ---
-doc/Makefile.in
-	- set SHELL to /bin/sh, rather than relying on make to be correct
-
-				   5/14
-				   ----
-savestring.c
-	- new file, moved from shell.c, for backwards compatibility
-
-Makefile.in, shlib/Makefile.in
-	- make sure savestring.c is compiled and added to libreadline and
-	  libhistory
-
-[THERE ARE NO MORE #ifdef SHELL LINES IN THE C SOURCE FILES.]
-
-				   5/15
-				   ----
-README
-	- updated description of shared library creation for the new scheme
-
-[THERE ARE NO MORE #ifdef SHELL LINES IN ANY OF THE SOURCE FILES.]
-
-Makefile.in
-	- bumped SHLIB_MAJOR up to 4 since we've augmented the library
-	  API
-	- rlconf.h is now one of the installed headers, so applications can
-	  find out whether things like vi-mode are available in the installed
-	  libreadline
-
-				   5/20
-				   ----
-configure.in
-	- changed RL_LIBRARY_VERSION to 4.0 to match the version of the
-	  installed shared libraries
-
-				    6/5
-				    ---
-rlstdc.h
-	- new file
-
-Makefile.in
-	- rlstdc.h is now one of the installed headers
-
-				    8/3
-				    ---
-shlib/Makefile.in
-	- made the suffix rule that creates xx.so from xx.c write the
-	  compiler output to `a.o', which is then mv'd to xx.so, because
-	  some compilers (Sun WSpro 4.2, for example) don't allow any
-	  suffixes other than `.o' for `cc -c' (not even `a.out')
-
-				   9/15
-				   ----
-
-Makefile.in
-	- AR and ARFLAGS are now substituted by configure, used in recipes
-	  that build the libraries
-
-configure.in
-	- use AC_CHECK_PROG to check for ar
-	- set ARFLAGS if it has not already been set in the environment
-
-				   10/5
-				   ----
-Makefile.in
-	- removed savestring.o from object file list
-
-				   10/28
-				   -----
-shlib/Makefile.in
-	- don't use a fixed filename in the .c.so suffix rule to avoid
-	  problems with parallel makes
-
-				   12/21
-				   -----
-support/shlib-install
-	- new script to install shared readline and history libraries
-
-shlib/Makefile.in
-	- changed to call shlib-install for install and uninstall targets
-
-[readline-4.0-beta1 frozen]
-
-				   12/22
-				   -----
-configure.in
-	- call AC_SUBST for SHOBJ_XLDFLAGS and SHLIB_LIBS
-
-shlib/Makefile.in
-	- SHOBJ_XLDFLAGS and SHLIB_LIBS are now substituted by configure
-	- add $(SHLIB_LIBS) at end of command line that builds the shared
-	  libraries (currently needed only by AIX 4.2)
-
-				   12/31
-				   -----
-MANIFEST, MANIFEST.doc
-	- the TOC html files are no longer generated and no longer part of
-	  the distribution
-
-				 2/18/1999
-				 ---------
-configure.in
-	- set MAKE_SHELL to /bin/sh and substitute into the Makefiles
-
-Makefile.in,{doc,examples,shlib}/Makefile.in
-	- set SHELL from @MAKE_SHELL@
-
-[readline-4.0 released]
-
-				   3/11
-				   ----
-doc/Makefile.in
-	- removed references to HTMLTOC, since separate HTML table-of-contents
-	  files are no longer created
-
-examples/Makefile.in
-	- remove `*.exe' in clean target for MS-DOS
-
-Makefile.in
-	- make `readline' target depend on ./libreadline.a
-	- configure now substitutes TERMCAP_LIB into Makefile.in
-	- use ${TERMCAP_LIB} instead of -ltermcap in recipe for `readline'
-	- clean target now removes readline and readline.exe in case they
-	  get built
-
-configure.in
-	- use `pwd.exe' to set BUILD_DIR on MS-DOS DJGPP
-
-				   3/15
-				   ----
-support/shlib-install
-	- Irix 5.x and Irix 6.x should install shared libraries like Solaris 2
-	- changes for installing on hp-ux 1[01].x
-
-				   3/23
-				   ----
-configure.in
-	- make sure that the $CC argument to shobj-conf is quoted
-
-				    4/8
-				    ---
-
-xmalloc.h, rlprivate.h, rlshell.h
-	- new files
-
-Makefile.in,shlib/Makefile.in
-	- add dependencies on xmalloc.h, rlshell.h
-	- add xmalloc.h, rlprivate.h, rlshell.h to list of header files
-
-MANIFEST
-	- add xmalloc.h, rlprivate.h, rlshell.h
-
-				    4/9
-				    ---
-Makefile.in,shlib/Makefile.in
-	- add dependencies on rlprivate.h
-
-				   4/13
-				   ----
-doc/Makefile.in
-	- add variable, PSDVI, which is the desired resolution of the
-	  generated postscript files.  Set to 300 because I don't have
-	  any 600-dpi printers
-	- set LANGUAGE= before calling makeinfo, so messages are in English
-	- add rluserman.{info,dvi,ps,html} to appropriate variables
-	- add rules to create rluserman.{info,dvi,ps,html}
-	- install and uninstall rluserman.info, but don't update the directory
-	  file in $(infodir) yet
-
-MANIFEST
-	- add doc/rluserman.{texinfo,info,dvi,ps,html}
-
-				   4/30
-				   ----
-configure.in
-	- updated library version to 4.1
-
-				    5/3
-				    ---
-configure.in
-	- SHLIB_MAJOR and SHLIB_MINOR shared library version numbers are
-	  constructed from $LIBRARY_VERSION and substituted into Makefiles
-
-				    5/5
-				    ---
-support/shlib-install
-	- OSF/1 installs shared libraries like Solaris
-
-Makefile.in
-	- broke the header file install and uninstall into two new targets:
-	  install-headers and uninstall-headers
-	- install and uninstall depend on install-headers and uninstall-headers
-	  respectively
-	- changed install-shared and uninstall-shared targets to depend on
-	  install-headers and uninstall-headers, respectively, so users may
-	  choose to install only the shared libraries.  I'm not sure about
-	  the uninstall one yet -- maybe it should check whether or not
-	  the static libraries are installed and not remove the header files
-	  if they are
-
-				    9/3
-				    ---
-configure.in, config.h.in
-	- added test for memmove (for later use)
-	- changed version to 4.1-beta1
-
-				   9/13
-				   ----
-examples/rlfe.c
-	- Per Bothner's `rlfe' readline front-end program
-
-examples/Makefile.in
-	- added rules to build rlfe
-
-				   9/21
-				   ----
-support/shlib-install
-	- changes to handle FreeBSD-3.x elf or a.out shared libraries, which
-	  have different semantics and need different naming conventions
-
-				 1/24/2000
-				 ---------
-doc/Makefile.in
-	- remove *.bt and *.bts on `make clean'
-
-				    2/4
-				    ---
-
-
-configure.in
-	- changed LIBVERSION to 4.1-beta5
-
-				 3/17/2000
-				 ---------
-[readline-4.1 released]
-
-				   3/23
-				   ----
-Makefile.in
-	- remove the `-t' argument to ranlib in the install recipe; some
-	  ranlibs don't have it and attempt to create a file named `-t'
-
-				   3/27
-				   ----
-support/shlib-install
-	- install shared libraries unwritable by anyone on HP-UX
-	- changed symlinks to relative pathnames on all platforms
-
-shlib/Makefile.in
-	- added missing `includedir' assignment, substituted by configure
-
-Makefile.in
-	- added missing @SET_MAKE@ so configure can set $MAKE appropriately
-
-configure.in
-	- add call to AC_PROG_MAKE_SET
-
-				   8/30
-				   ----
-shlib/Makefile.in
-	- change the soname bound into the shared libraries, so it includes
-	  only the major version number.  If it includes the minor version,
-	  programs depending on it must be rebuilt (which may or may not be
-	  a bad thing)
-
-				    9/6
-				    ---
-examples/rlfe.c
-	- add -l option to log input and output (-a option appends to logfile)
-	- add -n option to set readline application name
-	- add -v, -h options for version and help information
-	- change a few things because getopt() is now used to parse arguments
-
-				   9/12
-				   ----
-support/shlib-install
-	- fix up the libname on HPUX 11
-
-				   10/18
-				   -----
-configure.in
-	- changed library version to 4.2-alpha
-
-				   10/30
-				   -----
-configure.in
-	- add -fsigned-char to LOCAL_CFLAGS for Linux running on the IBM
-	  S/390
-
-Makefile.in
-	- added new file, rltypedefs.h, installed by default with `make install'
-
-				   11/2
-				   ----
-compat.c
-	- new file, with backwards-compatibility function definitions
-
-Makefile.in,shlib/Makefile.in
-	- make sure that compat.o/compat.so are built and linked apppropriately
-
-support/shobj-conf
-	- picked up bash version, which means that shared libs built on
-	  linux and BSD/OS 4.x will have an soname that does not include
-	  the minor version number
-
-				   11/13
-				   -----
-examples/rlfe.c
-	- rlfe can perform filename completion for relative pathnames in the
-	  inferior process's context if the OS supports /proc/PID/cwd (linux
-	  does it OK, Solaris is slightly warped, none of the BSDs have it)
-
-				11/17/2000
-				----------
-[readline-4.2-alpha released]
-
-				   11/27
-				   -----
-Makefile.in,shlib/Makefile.in
-	- added dependencies for rltypedefs.h
-
-shlib/Makefile.in
-	- changed dependencies on histlib.h to $(topdir)/histlib.h
-
-				   1/22
-				   ----
-configure.in
-	- changed release version to 4.2-beta
-
-				    2/2
-				    ---
-examples/Makefile.in
-	- build histexamp as part of the examples
-
-				    2/5
-				    ---
-doc/Makefile.in
-	- don't remove the dvi, postscript, html, info, and text `objects'
-	  on a `make distclean', only on a `make maintainer-clean'
-
-				    3/6
-				    ---
-doc/history.{0,3}, doc/history_3.ps
-	- new manual page for history library
-
-doc/Makefile.in
-	- rules to install and uninstall history.3 in ${man3dir}
-	- rules to build history.0 and history_3.ps
-
-				    4/2
-				    ---
-configure.in
-	- changed LIBVERSION to `4.2'
-
-				    4/5
-				    ---
-[readline-4.2 frozen]
-
-				    4/9
-				    ---
-[readline-4.2 released]
-
-				    5/2
-				    ---
-Makefile.in,{doc,examples,shlib}/Makefile.in
-	- added support for DESTDIR installation root prefix, to support
-	  building packages
-
-doc/Makefile.in
-	- add an info `dir' file entry for rluserman.info on `make install'
-	- change man1ext to `.1' and man3ext to `.3'
-	- install man pages with a $(man3ext) extension in the target directory
-	- add support for installing html documentation if `htmldir' has a
-	  value
-
-Makefile.in
-	- on `make install', install from the `shlib' directory, too
-	- on `make uninstall', uninstall in the `doc' and `shlib'
-	  subdirectories, too
-
-support/shlib-install
-	- add `freebsdelf*', `freebsdaout*', Hurd, `sysv4*', `sysv5*', `dgux*'
-	  targets for symlink creation
-
-				    5/7
-				    ---
-configure.in, config.h.in
-	- check for <limits.h>, define HAVE_LIMITS_H if found
-
-				    5/8
-				    ---
-aclocal.m4
-	- pick up change to BASH_CHECK_LIB_TERMCAP that adds check for
-	  libtinfo (termcap-specific portion of ncurses-5.2)
-
-				    5/9
-				    ---
-configure.in
-	- call AC_C_CONST to find out whether or not the compiler supports
-	  `const'
-
-config.h.in
-	- placeholder for `const' define, if any
-
-				   5/10
-				   ----
-configure.in
-	- fix AC_CHECK_PROG(ar, ...) test to specify right value for the
-	  case where ar is not found; should produce a better error message
-
-				   5/14
-				   ----
-configure.in,config.h.in
-	- check for vsnprintf, define HAVE_VSNPRINTF if found
-
-				   5/21
-				   ----
-configure.in, config.h.in
-	- add checks for size_t, ssize_t
-
-				   5/30
-				   ----
-configure.in
-	- update autoconf to version 2.50, use in AC_PREREQ
-	- changed AC_INIT to new flavor
-	- added AC_CONFIG_SRCDIR
-	- AC_CONFIG_HEADER -> AC_CONFIG_HEADERS
-	- call AC_C_PROTOTYPES
-	- AC_RETSIGTYPE -> AC_TYPE_SIGNAL
-
-				   8/22
-				   ----
-configure.in
-	- updated the version number to 4.2a
-
-Makefile.in,shlib/Makefile.in
-	- make sure tilde.o is built -DREADLINE_LIBRARY when being built as
-	  part of the standalone library, so it picks up the right include
-	  files
-
-				   8/23
-				   ----
-support/shlib-install
-	- support for Darwin/MacOS X shared library installation
-
-				   9/24
-				   ----
-examples/readlinebuf.h
-	- a new file, a C++ streambuf interface that uses readline for I/O.
-	  Donated by Dimitris Vyzovitis <vyzo@media.mit.edu>
-
-				   10/9
-				   ----
-configure.in
-        - replaced call to BASH_HAVE_TIOCGWINSZ with AC_HEADER_TIOCGWINSZ
-
-[readline-4.2a-beta1 frozen]
-
-				   10/15
-				   -----
-configure.in, config.h.in
-	- check for <memory.h>, define HAVE_MEMORY_H if found
-	- check for <strings.h>, define HAVE_STRINGS_H if found
-
-				   10/18
-				   -----
-configure.in, config.h.in
-	- check for isascii, define HAVE_ISASCII if found
-
-configure.in
-	- changed the macro names from bash as appropriate:
-		BASH_SIGNAL_CHECK -> BASH_SYS_SIGNAL_VINTAGE
-		BASH_REINSTALL_SIGHANDLERS -> BASH_SYS_REINSTALL_SIGHANDLERS
-		BASH_MISC_SPEED_T -> BASH_CHECK_SPEED_T
-
-				   10/22
-				   -----
-configure.in
-	- check for isxdigit with AC_CHECK_FUNCS
-
-config.h.in
-	- new define for HAVE_ISXDIGIT
-
-				   10/29
-				   -----
-configure.in, config.h.in
-	- check for strpbrk with AC_CHECK_FUNCS, define HAVE_STRPBRK if found
-
-				    11/1
-				    ----
-Makefile.in
-	- make sure DESTDIR is passed to install and uninstall makes in
-	  subdirectories
-	- when saving old copies of installed libraries, make sure we use
-	  DESTDIR for the old installation tree
-
-[readline-4.2a-rc1 frozen]
-
-				   11/2
-				   ----
-Makefile.in, shlib/Makefile.in
-	- don't put -I$(includedir) into CFLAGS
-
-				   11/15
-				   -----
-[readline-4.2a released]
-
-				   11/20
-				   -----
-examples/rlcat.c
-	- new file
-
-examples/Makefile.in
-	- changes for rlcat
-
-				   11/28
-				   -----
-configure.in
-	- default TERMCAP_LIB to -lcurses if $prefer_curses == yes (as when
-	  --with-curses is supplied)
-
-examples/Makefile.in
-	- substitute @LDFLAGS@ in LDFLAGS assignment
-
-				   11/29
-				   -----
-config.h.in
-	- add necessary defines for multibyte include files and functions
-	- add code to define HANDLE_MULTIBYTE if prerequisites are met
-
-configure.in
-	- call BASH_CHECK_MULTIBYTE
-
-				   12/14
-				   -----
-config.h.in
-	- add #undef PROTOTYPES, filled in by AC_C_PROTOTYPES
-
-				   12/17
-				   -----
-config.h.in
-	- moved HANDLE_MULTIBYTE code to rlmbutil.h
-
-rlmbutil.h, mbutil.c
-	- new files
-
-Makefile.in, shlib/Makefile.in
-	- added rules for mbutil.c
-
-				   12/20
-				   -----
-configure.in
-	- added --enable-shared, --enable-static options to configure to
-	  say which libraries are built by default (both default to yes)
-	- if SHLIB_STATUS == 'unsupported', turn off default shared library
-	  building
-	- substitute new STATIC_TARGET, SHARED_TARGET, STATIC_INSTALL_TARGET,
-	  and SHARED_INSTALL_TARGET
-
-Makefile.in
-	- `all' target now depends on (substituted) @STATIC_TARGET@ and
-	  @SHARED_TARGET@
-	- `install' target now depends on (substituted) @STATIC_INSTALL_TARGET@
-	  and @SHARED_INSTALL_TARGET@
-
-INSTALL, README
-	- updated with new info about --enable-shared and --enable-static
-
-				 1/10/2002
-				 ---------
-configure.in
-	- bumped the library version number to 4.3
-
-				   1/24
-				   ----
-Makefile.in,shlib/Makefile.in
-	- changes for new file, text.c, with character and text handling
-	  functions from readline.c
-
-				   2/20
-				   ----
-{configure.config.h}.in
-	- call AC_C_CHAR_UNSIGNED, define __CHAR_UNSIGNED__ if chars are
-	  unsigned by default
-
-				   5/20
-				   ----
-doc/Makefile.in
-	- new maybe-clean target that removes the generated documentation if
-	  the build directory differs from the source directory
-	- distclean target now depends on maybe-clean
-
-				   7/17
-				   ----
-[readline-4.3 released]
-
-				   7/18
-				   ----
-shlib/Makefile.in
-	- fix bad dependency: text.so: terminal.c, make it depend on text.c
-
-				    8/7
-				    ---
-support/shlib-install
-	- break `linux' out into its own stanza:  it seems that linux
-	  distributions are all moving to the following scheme:
-
-		libreadline.so.4.3	installed version
-		libreadline.so.4 -> libreadline.so.4.3	symlink
-		libreadline.so -> libreadline.so.4	symlink
-
-				   10/29
-				   -----
-support/shlib-install
-	- change INSTALL_LINK[12] to use `&&' instead of `;' so it only
-	  tries the link if the cd succeeds; put ${echo} in there, too
-	- use $LN instead of `ln -s' so it works on machines without symlinks
-	- change special linux stanza to use cd before ln also
-	- change to use $INSTALL_LINK1 and $INSTALL_LINK2 appropriately
-	  instead of explicit commands in various stanzas
-
-				    2/1
-				    ---
-config.h.in
-	- add HAVE_MBRTOWC and HAVE_MBRLEN
-	- add NO_MULTIBYTE_SUPPORT for new configure argument
-	- add STDC_HEADERS
-
-configure.in
-	- new argument --enable-multibyte (enabled by default), allows
-	  multibyte support to be turned off even on systems that support it
-	- add check for ansi stdc headers with call to AC_HEADER_STDC
-
-				    2/3
-				    ---
-configure.in
-	- add call to BASH_FUNC_CTYPE_NONASCII
-
-config.h.in
-	- add CTYPE_NON_ASCII
-
-				   2/20
-				   ----
-
-doc/manvers.texinfo
-        - renamed to version.texi to match other GNU software
-        - UPDATE-MONTH variable is now `UPDATED-MONTH'
-        
-doc/{hist,rlman,rluserman}.texinfo
-        - include version.texi
-        
-doc/{rltech,rluser,hstech,hsuser}.texi
-	- changed the suffix from `texinfo' to `texi'
-
-doc/Makefile.in
-	- made appropriate changes for {{rl,hs}tech,{rl,hs}user}.texi
-
-doc/{rlman,rluserman}.texinfo
-	- changed the suffix from `texinfo' to `texi'
-
-doc/hist.texinfo
-	- renamed to history.texi to be more consistent
-
-				   6/11
-				   ----
-shlib/Makefile.in
-	- have configure substitute value of `@LDFLAGS@' into the assignment
-	  to SHLIB_XLDFLAGS
-
-				   6/16
-				   ----
-configure.in
-	- readline and history libraries are now at version 5.0
-
-				   8/18
-				   ----
-support/shlib-install
-	- support for FreeBSD-gnu (from Robert Millan)
-
-				   12/4
-				   ----
-Makefile.in
-	- add variables for localedir and the PACKAGE_* variables, auto-set
-	  by configure
-
-				   12/9
-				   ----
-Makefile.in
-	- use mkinstalldirs instead of mkdirs
-
-				   4/22
-				   ----
-Makefile.in
-	- separate doc install/uninstall out into two new targets:
-	  install-doc and uninstall-doc
-	- make install-doc and uninstall-doc prerequisites of appropriate
-	  install and uninstall targets
-
-examples/rl-fgets.c
-	- new example from Harold Levy that wraps fgets replacement functions
-	  that call readline in a shared library that can be interposed with
-	  LD_PRELOAD
-
-				   7/27
-				   ----
-[readline-5.0 released]
-
-				   11/15
-				   -----
-examples/rlfe/{ChangeLog,Makefile.in,README,config.h.in,configure,configure.in,extern.h,os.h,pty.c,rlfe.c,screen.h}
-	- new version of rlfe, rlfe-0.4, from Per Bothner; now a standalone
-	  application
-
-				   11/16
-				   -----
-shlib/Makefile.in
-	- substitute TERMCAP_LIB in from configure
-
-configure.in
-	- if SHLIB_LIBS doesn't include a termcap library (curses, ncurses,
-	  termcap, termlib), append the value of $TERMCAP_LIB to it
-
-				   11/30
-				   -----
-configure.in
-	- take out change from 11/16; it doesn't work for some systems (e.g.,
-	  SunOS 4.x and Solaris 2.6)
-	- add support for --enable-purify configure argument
-	- pass TERMCAP_LIB in environment when calling shobj-conf
-
-examples/Makefile.in 
-	- add support for building examples with purify
-
-				 1/23/2005
-				 ---------
-configure.in
-        - set BUILD_DIR to contain backslashes to escape any spaces in the
-          directory name -- this is what make will accept in targets and
-          prerequisites, so it's better than trying to use double quotes
-
-				   2/25
-				   ----
-configure.in
-	- change check for sys/ptem.h to include sys/stream.h if present, to
-	  avoid the `present but cannot be compiled' messages on Solaris and
-	  SVR4.2 (does anyone still use SVR4.2?)
-
-				    5/7
-				    ---
-configure.in
-	- add cross-compiling support from the bash configure.in, which cygwin
-	  and mingw have apparently adopted
-	- add check for pwd.h, fcntl.h
-	- add checks for fcntl, kill system calls
-	- add checks for getpw{ent,nam,uid} C library functions
-	- pass a compile-time option through to Makefiles if cross-compiling
-
-config.h.in
-	- add HAVE_PWD_H for <pwd.h>, HAVE_FCNTL_H for <fcntl.h>
-	- add HAVE_FCNTL, HAVE_KILL for respective system calls
-	- add HAVE_GETPW{ENT,NAM,UID} for passwd functions
-
-Makefile.in,shlib/Makefile.in
-        - @CROSS_COMPILE@ is substituted into DEFS (equal to -DCROSS_COMPILING
-	  if bash is being cross-compiled)
-
-				    8/2
-				    ---
-examples/Makefile.in
-	- use $(READLINE_LIB) instead of -lreadline to get around MacOS X 10.4's
-	  preference for (incompatible) shared libraries over static libraries
-	  in the load path
-
-				   8/11
-				   ----
-support/shobj-conf
-	- new variable: SHLIB_LIBPREF, prefix for shared library name (defaults
-	  to `lib'
-	- new variable: SHLIB_DLLVERSION, used on Cygwin to set the library
-	  version number
-	- new variable: SHLIB_DOT, separator character between library name and
-	  suffix and version information (defaults to `.')
-	- new stanza for cygwin to generate windows-compatible dll
-
-support/shlib-install
-	- add new option `-b bindir' for systems like cygwin/windows that
-	  require it
-	- new stanza for cygwin that installs a dll into $bindir and an implied
-	  link library into $libdir
-
-configure.in
-	- substitute new variables from shobj-conf
-
-shlib/Makefile.in
-	- substitute bindir, SHLIB_DOT, SHLIB_LIBPREF, SHLIB_DLLVERSION from
-	  configure
-	- pass `-b $(bindir)' to shlib-install for install and uninstall targets
-	- library names now use $SHLIB_LIBPREF and $SHLIB_DOT
-
-INSTALL,README
-	- document new SHLIB_DOT, SHLIB_LIBPREF, and SHLIB_DLLVERSION variables
-
-				   10/4
-				   ----
-[readline-5.1-beta1 frozen]
-
-				   12/1
-				   ----
-configure.in
-	- changed release status to `release'
-
-[readline-5.1 frozen]
-
-				   12/9
-				   ----
-[readline-5.1 released]
-
-				   12/14
-				   -----
-examples/rlfe/Makefile.in
-	- add @LIBS@ to LIBS assignment to pick up extra libraries from
-	  configure
-
-				 1/3/2006
-				 --------
-support/shlib-install
-	- Install shared libraries with execute bit set on Linux
-
-				    6/9
-				    ---
-[readline-5.2-alpha frozen]
-
-				   6/26
-				   ----
-configure.in
-	- set CROSS_COMPILE to the empty string by default, so we don't inherit
-	  a random value from the environment
-
-				    7/8
-				    ---
-[readline-5.2-alpha released]
-
-
-[readline-5.2-beta released]
-
-				   9/12
-				   ----
-config.h.in
-        - add defines for wcscoll, iswctype, iswupper, iswlower, towupper,
-          towlower functions
-        - replace define for wctomb with one for wcrtomb
-        - add defines for wchar_t, wint_t, wctype_t types
-
-				   10/11
-				   -----
-[readline-5.2 released]
-
-				   11/9
-				   ----
-examples/rlfe/{configure.in,Makefile.in,config.h.in,rlfe.c,pty.c}
-	- portability fixes from Mike Frysinger <vapier@gentoo.org>
-
-				   11/21
-				   -----
-Makefile.in
-	- add `install-examples' and `uninstall-examples' targets
-
-examples/Makefile.in
-	- add correct variables to build examples on Windows
-	- add appropriate rules to install and uninstall example sources in
-	  $(datadir)/readline 
-
-				   11/27
-				   -----
-config.h.in
-	- move #undef of HAVE_STRCOLL out of config.h.in, since autoconf tries
-	  to substitute it based on configure tests
-
-				 4/27/2007
-				 ---------
-examples/autoconf
-	- new directory with example autoconf macros to detect readline and
-	  return information about the installed version
-
-				   6/13
-				   ----
-support/shlib-install
-	- changes to support AIX 5.x shared library installation
-
-				 3/20/2008
-				 ---------
-support/shlib-install
-	- add support for NetBSD and Interix shared library installation
-
-				   4/22
-				   ----
-support/wcwidth.c
-	- updated implementation from 2007-05
-
-				   7/18
-				   ----
-support/shlib-install
-	- support for mingw32, contributed by Carlo Bramix <carlo.bramix@libero.it>
-
-				    8/4
-				    ---
-configure.in
-	- changed to readline-6.0
-
-				   8/18
-				   ----
-support/config.{guess,sub}
-	- updated to newer versions from autoconf-2.62 distribution
-
-				 3/5/2009
-				 --------
-support/shlib-install
-	- take a new -V host_vendor argument
-	- add ${host_vendor} to string tested in case statement for symlink
-	  creation section
-	- add support for FreeBSD/gentoo, which uses Linux library naming
-	  scheme
-	- change FreeBSD symlink rules, since FreeBSD 7+ has only ELF shared
-	  libraries.  DragonflyBSD rules are the same.  Fix from Timothy
-	  Redaelli <drizzt@gentoo.org>
-
-shlib/Makefile.in
-	- add definition of host_vendor, substituted by configure
-	- add -V host_vendor argument to all invocations of shlib-install.
-	  Fix from Timothy Redaelli <drizzt@gentoo.org>
-
-				   3/10
-				   ----
-configure.in
-	- add call to AC_SYS_LARGEFILE for readdir and largefile support on
-	  Linux
-
-config.h.in
-	- add _FILE_OFFSET_BITS define
-
-				   4/19
-				   ----
-Makefile.in
-	- add targets for making and installing documentation required by GNU
-	  coding standards.  Fix from Joseph Myers <joseph@codesourcery.com>
-
-posixselect.h
-	- pick up from bash.  Inspired by Mike Frysinger <vapier@gentoo.org>
-
-				   10/28
-				   -----
-support/shlib-install
-	- decrease the default version of FreeBSD that installs shared libraries
-	  to 4.x.  Advice from Peter Jeremy <peterjeremy@acm.org>
-
-				   12/18
-				   -----
-[readline-6.1-rc1 released]
-
-				   12/23
-				   -----
-doc/Makefile.in
-	- make sure $(topdir) is not ".." before removing all of the formatted
-	  documentation in `make distclean'.  $(topdir) is set to `..' if
-	  readline is being built in the source directory.  Fixes problem
-	  noticed by THOUMIN Damien <thoumin@ipanematech.com>
-
-				   12/29
-				   -----
-[readline-6.1 frozen]
-
-				 2/5/2010
-				 --------
-examples/Makefile.in
-        - make sure to install example C files using $(srcdir)/$$f in case
-          we're building outside the source directory.  Bug report and fix
-          from Peter Breitenlohner <peb@mppmu.mpg.de>
-
-				   7/25
-				   ----
-xfree.c
-	- new file with xfree() implementation, moved from xmalloc.c
-
-				   12/28
-				   -----
-{examples,shlib}/Makefile.in
-	- Cygwin-based changes from Eric Blake <eblake@redhat.com>
-
-				 3/26/2011
-				 ---------
-Makefile.in
-	- don't ignore failures when building, installing, or cleaning in
-	  the shlib subdirectory.  Sample patch from Mike Frysinger
-	  <vapier@gentoo.org>
-
-shlib/Makefile.in
-	- split the install and uninstall targets into install-supported and
-	  install-unsupported targets that depend on the value of
-	  SHLIB_STATUS
-
-				    4/2
-				    ---
-{,shlib}/Makefile.in
-	- add dependency for callback.o/callback.so on xmalloc.h.  From
-	  Jan Kratochvil  <jan.kratochvil@redhat.com>
-
-{,doc,examples,shlib}/Makefile.in
-	- fix typo: htm target should be html.  From Jan Kratochvil
-	  <jan.kratochvil@redhat.com>
-	- remove `.' from VPATH.  From Jan Kratochvil
-	   <jan.kratochvil@redhat.com>
-
-examples/rlfe/configure.in
-	- quote AC_PROGRAM_SOURCE.  From Jan Kratochvil
-	   <jan.kratochvil@redhat.com>
-
-				   5/17
-				   ----
-config.h.in
-	- WCWIDTH_BROKEN: new define, picked up from bash, defined on systems
-	  where wcwidth returns 1 for Unicode combining characters
-
-				   11/28
-				   -----
-support/shlib-install
-	- make sure solaris2 systems make the installed shared library
-	  executable.  ldd warns about it otherwise.  Bug and fix from
-	  Tim Mooney <tim.mooney@ndsu.edu>
-
-examples/hist_erasedups.c
-	- new example program, shows how to erase duplicates from the history
-	  list
-
-examples/hist_purgecmd.c
-	- new example program, shows how to remove all entries matching a
-	  string or pattern from the history list
-
-				 1/12/2012
-				 ---------
-colors.[ch],parse-colors.[ch]}
-	- new files, part of color infrastructure support
-
-Makefile.in,shlib/Makefile.in
-	- arrange to have colors.o and parse-colors.o added to library
-	  (static and shared versions)
-
-{configure,config.h}.in
-	- check for stdbool.h, define HAVE_STDBOOL_H if found
-
-rldefs.h
-	- COLOR_SUPPORT: if defined, compile in colors.c and parse-colors.c
-	  for color support
-
-				   1/18
-				   ----
-
-{configure,config.h}.in
-        - new check: check for AUDIT_USER_TTY defined in <linux/audit.h>,
-          define HAVE_DECL_AUDIT_USER_TTY if both are found
-
-				    8/7
-				    ---
-configure.in
-	- AC_CANONICAL_BUILD: call to set the build_xxx variables
-	- use $build_os instead of $host_os to decide when DJGPP should run
-	  `pwd.exe' to figure out the build directory.  Report and fix from
-	  Yao Qi <yao@codesourcery.com>
-
-				   8/29
-				   ----
-configure.ac
-	- new name for configure.in
-
-MANIFEST,Makefile.in
-	- configure.in -> configure.ac
-
-				 1/5/2013
-				 --------
-configure.ac
-	- move version number up to 6.3
-
-				   1/31
-				   ----
-configure.ac
-	- use AC_CHECK_TOOL instead of AC_CHECK_PROG to check for ar, since it
-	  will find $host-prefixed versions of utilities.  Report and fix from
-	  Mike Frysinger <vapier@gentoo.org>
-
-				    3/4
-				    ---
-Makefile.in
-        - PACKAGE_TARNAME, docdir: new variables substituted by autoconf
-        - OTHER_DOCS,OTHER_INSTALLED_DOCS: new variables with auxiliary
-	  documentation files to be installed into $(docdir)
-        - install: add new rule to install $(OTHER_DOCS)
-        - uninstall: add new rule to uninstall $(docdir)/$(OTHER_INSTALLED_DOCS)
-
-				   4/29
-				   ----
-Makefile.in
-	- installdirs: make sure to create $(DESTDIR)$(docdir).  Report from
-	  <hiroo.hayashi@computer.org>
-
-				 1/27/2014
-				 ---------
-Makefile.in
-	- install-examples: should not depend on `shared', since the examples
-	  themselves are not built using shared libraries.  Report from
-	  <hiroo.hayashi@computer.org>
-
-support/shobj-conf
-	- [from bash] darwin: changed the install_name embedded into the
-	  shared library to contain only the major version number, not the
-	  minor one. The idea is that the minor versions should all be API/ABI
-	  compatible, and it is better to link automatically with the latest
-	  one.  Idea from Max Horn <max@quendi.de>
-
-				 2/26/2014
-				 ---------
-[readline-6.3 released]
-
-				   3/14
-				   ----
-shlib/Makefile.in
-	- fix typo in dependency list for vi_mode.so: it should not depend on
-	  just $(topdir). Report and fix from Natanael Copa
-	  <ncopa@alpinelinux.org>
-
-				   4/15
-				   ----
-{.,shlib,examples}/Makefile.in
-	- make sure $(INCLUDES) appears before $(CPPFLAGS) in the various
-	  CFLAGS assignments so readline looks in its own source and build
-	  directories (INCLUDES) before some directories specified by the
-	  user or builder (CPPFLAGS).  Report and fix from Max Horn
-	  <max@quendi.de>
-
-				    6/2
-				    ---
-config.h.in
-	- use correct symbols: HAVE_STRUCT_DIRENT_D_INO, HAVE_STRUCT_DIRENT_D_FILENO
-	  HAVE_STRUCT_DIRENT_D_NAMLEN.  They don't really matter, but they are
-	  what posixdir.h looks for.  Report from Ross Burton <ross.burton@intel.com>
-
-				   6/11
-				   ----
-readline.pc.in
-	- new file, config file for pkgconfig. Patch to add from Jirka Klimes
-	  <jklimes@redhat.com>
-
-{MANIFEST,configure.ac,Makefile.in}
-	- readline.pc: changes to create file for pkgconfig
-
-				   10/13
-				   -----
-doc/Makefile.in
-	- readline.pdf, history.pdf, rluserman.pdf: use texi2dvi --pdf to generate
-	  these.  Suggestion from Siep Kroonenberg <siepo@cybercomm.nl>
-
-				   11/29
-				   -----
-config.h.in
-        - HAVE_PSELECT: define if pselect(2) available
-
-configure.ac
-        - check for pselect(2), define HAVE_PSELECT if found
-
-				   12/29
-				   -----
-configure.ac
-	- bump version number up to 6.4
-
-				 1/6/2015
-				 --------
-configure.ac,config.h.in
-	- look for ncurses/termcap.h, define HAVE_NCURSES_TERMCAP_H
-
-				   4/20
-				   ----
-configure.ac
-	- add template definitions set by AC_USE_SYSTEM_EXTENSIONS from a report
-	  from Andreas Schwab <schwab@linux-m68k.org>
-
-				   4/24
-				   ----
-configure.ac,config.h.in
-	- add check for sys/ioctl.h to AC_CHECK_HEADERS, define HAVE_SYS_IOCTL_H
-	  if found
-
-				   5/29
-				   ----
-configure.ac
-	- bump library version to 7.0 because of addition of rl_callback_sigcleanup
-
-				   8/26
-				   ----
-configure.ac,Makefile.in,examples/Makefile.in
-	- remove references to purify
-
-				   11/21
-				   -----
-configure.ac,config.h.in
-	- fnmatch: check for libc function, define HAVE_FNMATCH if found. Now
-	  used by vi-mode history search functions
-
-				   7/12
-				   ----
-Makefile.in,examples/Makefile.in
-	- add support for building with address sanitizer, using new target
-	  `asan'
-
-				 4/23/2018
-				 ---------
-configure.ac
-	- TERMCAP_PKG_CONFIG_LIB: new variable, defined from TERMCAP_LIB,
-	  defaults to termcap
-
-readline.pc.in
-	- change Requires.private to use TERMCAP_PKG_CONFIG_LIB instead of
-	  hardcoded `tinfo'. Report and fix from Thomas Petazzoni
-	  <thomas.petazzoni@bootlin.com>
-
-				    5/4
-				    ---
-Makefile.in
-	- new targets to install and uninstall the `readline.pc' pkgconfig
-	  file
-	- install-{static,shared}: add install-pc to the list of prereqs
-	- uninstall{,-shared}: add uninstall-pc to list of prereqs. Change
-	  from Thomas Petazzoni <thomas.petazzoni@bootlin.com>
-
-configure.ac,Makefile.in
-	- add new configure option to optionally disable installing the
-	  source code examples. From Thomas Petazzoni <thomas.petazzoni@bootlin.com>
-
-				   5/23
-				   ----
-Makefile.in
-	- install-pc: make sure we install readline.pc into an existing
-	  pkgconfig directory. Report from ilove zfs <ilovezfs@icloud.com>
-
-				   5/24
-				   ----
-Makefile.in
-	- installdirs: create $(pkgconfigdir) if it doesn't exist