Added the contents of the "readline" module back. This is

generally unused, as it is incompatible with the Tcl/Tk build of
magic.  However, I had not intended to remove it, only move the
name from "readline-4.3" to "readline".  But "readline/readline"
was in .gitignore, which caused the contents to be removed from
the repository.  This commit restores those files, and also
prevents the readline directory Makefile from making a symbolic
link called "readline" to itself, which was causing compile-time
issues.  The readline code is only kept for backwards compatibility
with ancient versions of magic not using the Tcl/Tk interpreter.

scripts/configure

@@ -722,6 +722,7 @@ infodir
 docdir
 oldincludedir
 includedir
+runstatedir
 localstatedir
 sharedstatedir
 sysconfdir
@@ -827,6 +828,7 @@ datadir='${datarootdir}'
 sysconfdir='${prefix}/etc'
 sharedstatedir='${prefix}/com'
 localstatedir='${prefix}/var'
+runstatedir='${localstatedir}/run'
 includedir='${prefix}/include'
 oldincludedir='/usr/include'
 docdir='${datarootdir}/doc/${PACKAGE}'
@@ -1079,6 +1081,15 @@ do
   | -silent | --silent | --silen | --sile | --sil)
     silent=yes ;;
 
+  -runstatedir | --runstatedir | --runstatedi | --runstated \
+  | --runstate | --runstat | --runsta | --runst | --runs \
+  | --run | --ru | --r)
+    ac_prev=runstatedir ;;
+  -runstatedir=* | --runstatedir=* | --runstatedi=* | --runstated=* \
+  | --runstate=* | --runstat=* | --runsta=* | --runst=* | --runs=* \
+  | --run=* | --ru=* | --r=*)
+    runstatedir=$ac_optarg ;;
+
   -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
     ac_prev=sbindir ;;
   -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
@@ -1216,7 +1227,7 @@ fi
 for ac_var in	exec_prefix prefix bindir sbindir libexecdir datarootdir \
 		datadir sysconfdir sharedstatedir localstatedir includedir \
 		oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
-		libdir localedir mandir
+		libdir localedir mandir runstatedir
 do
   eval ac_val=\$$ac_var
   # Remove trailing slashes.
@@ -1369,6 +1380,7 @@ Fine tuning of the installation directories:
   --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
   --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
   --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
+  --runstatedir=DIR       modifiable per-process data [LOCALSTATEDIR/run]
   --libdir=DIR            object code libraries [EPREFIX/lib]
   --includedir=DIR        C header files [PREFIX/include]
   --oldincludedir=DIR     C header files for non-gcc [/usr/include]
@@ -6978,6 +6990,7 @@ else
   unused="$unused lef"
 fi
 
+
 # Check whether --enable-readline was given.
 if test "${enable_readline+set}" = set; then :
   enableval=$enable_readline;  if test $usingTcl ; then
@@ -8262,6 +8275,8 @@ fi
 
 
 
+
+
 
 
 

scripts/configure.in

@@ -1024,6 +1024,10 @@ else
   unused="$unused lef"
 fi
 
+dnl The readline code is incompatible with Tcl/Tk, which has its own
+dnl readline-like interface, so regardless of the setting of this
+dnl option, if Tcl/Tk support is enabled, it will always be disabled.
+
 AC_ARG_ENABLE(readline,
 [  --disable-readline	disable readline package],
 [ if test $usingTcl ; then