bison 1.33 configure bugs patched

[Bruce Lilly]

Hello,

The attached patch fixes several bugs in the
configure script in bison 1.33: IFS gets fouled
up beyond all recognition in a couple of places
and has to be fixed; PS1-PS4 should be initialized
to prevent side-effects from interfering with
exit status tests.

Best regards,
  Bruce Lilly

*** configure.orig      Fri Feb 22 02:42:00 2002
--- configure   Fri Feb 22 05:14:13 2002
***************
*** 9,14 ****
--- 9,19 ----
  # This configure script is free software; the Free Software Foundation
  # gives unlimited permission to copy, distribute and modify it.
  
+ PS1='$ '
+ PS2=
+ PS3=
+ PS4=
+ 
  if expr a : '\(a\)' >/dev/null 2>&1; then
    as_expr=expr
  else
***************
*** 1132,1137 ****
--- 1137,1144 ----
    >$cache_file
  fi
  
+ IFS="         
+ "
  # Check that the precious variables saved in the cache have kept the same
  # value.
  ac_cache_corrupted=false
***************
*** 3241,3246 ****
--- 3248,3255 ----
  fi
  
  fi
+ IFS="         
+ "
  if test -z "$ac_cv_prog_RANLIB"; then
    ac_ct_RANLIB=$RANLIB
    # Extract the first word of "ranlib", so it can be a program name with args.