readline initialisation fix

[Tim Waugh]

Configuration Information [Automatically generated, do not change]:
Machine: i686
OS: linux-gnu
Compiler: gcc
Compilation CFLAGS:  -DPROGRAM='bash' -DCONF_HOSTTYPE='i686' 
-DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='i686-pc-linux-gnu' 
-DCONF_VENDOR='pc' -DSHELL -DHAVE_CONFIG_H  -I.  -I. -I./include -I./lib 
-D_GNU_SOURCE  -O2 -march=i386 -mcpu=i686
uname output: Linux cyberelk.elk 2.4.18-14 #1 Wed Sep 4 13:35:50 EDT 2002 i686 
i686 i386 GNU/Linux
Machine Type: i686-pc-linux-gnu

Bash Version: 2.05b
Patch Level: 0
Release Status: release

Description:
        Backspace deletes prompt after entering non-ASCII characters

Repeat-By:
        ssh into a machine running bash 2.05b, type any non-ASCII (€,
        for instance), and press backspace twice.

Fix:

This patch was submitted by mitr@volny.cz; see
<https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=74925>.

--- bash-2.05b/lib/readline/nls.c.mitr2 2002-10-10 04:08:35.000000000 +0200
+++ bash-2.05b/lib/readline/nls.c       2002-10-10 04:10:07.000000000 +0200
@@ -86,8 +86,15 @@
 #if defined (HAVE_SETLOCALE)
   char *t;
 
+#  if 0
   /* Set the LC_CTYPE locale category from environment variables. */
   t = setlocale (LC_CTYPE, "");
+#  else
+  /* Don't set LC_TYPE from environment, because bash maintains its own
+     environment invisible to libc. This obviously doesn't belong in the
+     standalone readline library. */
+  t = setlocale (LC_CTYPE, NULL);
+#  endif
   if (t && *t && (t[0] != 'C' || t[1]) && (STREQ (t, "POSIX") == 0))
     {
       _rl_meta_flag = 1;