configure.in (--enable-checking): Update --help doc to reflect new defaults.

	* configure.in (--enable-checking): Update --help doc to reflect
	new defaults.  Ensure $ac_save_IFS is set before $IFS is changed.

From-SVN: r34596

gcc/ChangeLog

+2000-06-19  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
+
+	* configure.in (--enable-checking): Update --help doc to reflect
+	new defaults.  Ensure $ac_save_IFS is set before $IFS is changed.
+
 Sun Jun 18 21:42:15 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>
 
 	* gcse.c (insert_insn_end_bb): Always put after NOTE_INSN_BASIC_BLOCK.

gcc/configure

@@ -33,7 +33,7 @@ ac_help="$ac_help
 			  enable expensive run-time checks.  With LIST,
 			  enable only specific categories of checks.
 			  Categories are: misc,tree,rtl,gc,gcac; default
-			  is misc,tree,rtl"
+			  is misc,tree,gc"
 ac_help="$ac_help
   --disable-cpp           don't provide a user-visible C preprocessor."
 ac_help="$ac_help
@@ -782,7 +782,7 @@ ac_gc_always_collect=
 case "${enableval}" in
 yes)	ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;;
 no)	;;
-*)	IFS="${IFS= 	}"; ac_save_IFS="$IFS" IFS="$IFS,"
+*)	IFS="${IFS= 	}"; ac_save_IFS="$IFS"; IFS="$IFS,"
 	set fnord $enableval; shift
 	IFS="$ac_save_IFS"
 	for check

gcc/configure.in

@@ -182,7 +182,7 @@ AC_ARG_ENABLE(checking,
 			  enable expensive run-time checks.  With LIST,
 			  enable only specific categories of checks.
 			  Categories are: misc,tree,rtl,gc,gcac; default
-			  is misc,tree,rtl],
+			  is misc,tree,gc],
 [ac_checking=
 ac_tree_checking=
 ac_rtl_checking=
@@ -191,7 +191,7 @@ ac_gc_always_collect=
 case "${enableval}" in
 yes)	ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;;
 no)	;;
-*)	IFS="${IFS= 	}"; ac_save_IFS="$IFS" IFS="$IFS,"
+*)	IFS="${IFS= 	}"; ac_save_IFS="$IFS"; IFS="$IFS,"
 	set fnord $enableval; shift
 	IFS="$ac_save_IFS"
 	for check