diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 211a8f0c2a0c..d98fbf16e23f 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2000-03-20  Geoff Keating  <geoffk@cygnus.com>
+
+	* configure.in: Set $IFS to a value if it doesn't already have one
+	in the --enable-checking handling.
+	* configure: Regenerate.
+
 2000-03-20  Martin v. Löwis  <loewis@informatik.hu-berlin.de>
 
 	* c-parse.in (SAVE_WARN_FLAGS): Use size_int.
diff --git a/gcc/configure b/gcc/configure
index e573b09650f3..06e2449dfb0e 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -787,7 +787,7 @@ EOF
 EOF
 	;;
 no)	;;
-*)	ac_save_IFS="$IFS" IFS="$IFS,"
+*)	IFS="${IFS= 	}"; ac_save_IFS="$IFS" IFS="$IFS,"
 	set fnord $enableval; shift
 	IFS="$ac_save_IFS"
 	for check
@@ -1369,7 +1369,7 @@ else
 fi
 
 # Find some useful tools
-for ac_prog in mawk gawk nawk awk
+for ac_prog in gawk mawk nawk awk
 do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
diff --git a/gcc/configure.in b/gcc/configure.in
index d6fc892cd0fc..4fc57fe789d7 100644
--- a/gcc/configure.in
+++ b/gcc/configure.in
@@ -186,7 +186,7 @@ yes)	AC_DEFINE(ENABLE_CHECKING)
 	AC_DEFINE(ENABLE_TREE_CHECKING)
 	AC_DEFINE(ENABLE_RTL_CHECKING)	;;
 no)	;;
-*)	ac_save_IFS="$IFS" IFS="$IFS,"
+*)	IFS="${IFS= 	}"; ac_save_IFS="$IFS" IFS="$IFS,"
 	set fnord $enableval; shift
 	IFS="$ac_save_IFS"
 	for check