* guile-readline/ice-9/readline.scm (make-readline-port): Instead of
calling add-history after every %readline call, do it only when
starting a new read. Other times, append the line just read to an
internal buffer.
* guile-readline/ice-9/readline.scm (readline-repl-reader): Pull
definition out of activate-readline. If the current input port is not
the readline port, fall back to the boot-9 repl reader.
(activate-readline): Adapt.
* module/ice-9/boot-9.scm (repl-reader): Accept an optional second
argument, the reader to use. If it is given, use it instead of
dereferencing the current-reader fluid.
* guile-readline/ice-9/readline.scm (activate-readline): Make our
replacement definition of repl-reader compatible with boot-9.
(continuation-prompt): Renamed from "prompt2".
(make-readline-port, readline, set-readline-prompt!): Reflect above renamings.
(activate-readline): Rename locals "read-hook" and "prompt" to
"repl-read-hook" and "repl-prompt", to disambiguate them from
globals. Save and restore the new-input- and continuation-
prompts around the REPL read call.
Added LIBGUILEREADLINE_MAJOR variable for inclusion in the name of
the shared library.
* configure.in: AC_SUBST it.
* Makefile.am: Substitute it into name of library.
* ice-9/readline.scm: Use new name with load-extension.
