+for cf_add_cflags in $cf_xopen_source
+do
+ case "x$cf_add_cflags" in
+ (x-[DU]*)
+
+cf_tmp_cflag=`echo "x$cf_add_cflags" | sed -e 's/^.//' -e 's/=.*//'`
+while true
+do
+ cf_old_cflag=`echo "x$CFLAGS" | sed -e 's/^.//' -e 's/[ ][ ]*-/ -/g' -e "s%$cf_tmp_cflag\\(=[^ ][^ ]*\\)\?%%" -e 's/^[ ]*//' -e 's%[ ][ ]*-D% -D%g' -e 's%[ ][ ]*-I% -I%g'`
+ test "$CFLAGS" != "$cf_old_cflag" || break
+ test -n "$verbose" && echo " removing old option $cf_add_cflags from CFLAGS" 1>&6
+
+echo "${as_me:-configure}:11198: testing removing old option $cf_add_cflags from CFLAGS ..." 1>&5
+
+ CFLAGS="$cf_old_cflag"
+done
+
+cf_tmp_cflag=`echo "x$cf_add_cflags" | sed -e 's/^.//' -e 's/=.*//'`
+while true
+do
+ cf_old_cflag=`echo "x$CPPFLAGS" | sed -e 's/^.//' -e 's/[ ][ ]*-/ -/g' -e "s%$cf_tmp_cflag\\(=[^ ][^ ]*\\)\?%%" -e 's/^[ ]*//' -e 's%[ ][ ]*-D% -D%g' -e 's%[ ][ ]*-I% -I%g'`
+ test "$CPPFLAGS" != "$cf_old_cflag" || break
+ test -n "$verbose" && echo " removing old option $cf_add_cflags from CPPFLAGS" 1>&6
+
+echo "${as_me:-configure}:11210: testing removing old option $cf_add_cflags from CPPFLAGS ..." 1>&5
+
+ CPPFLAGS="$cf_old_cflag"
+done
+
+ ;;
+ esac
+