Add a test, POSTPONED_ORPHAN, that should fail (although it currently

does not).  Rework the Makefile magic to have failing and succeeding tests.

POSTPONED_ORPHAN is an example of a configuration where the user starts
negating an instance, and then adding an instance of a child of the negated
one.  The latter should be found as an erroneous orphan, as the parent was
negated beforewards.

regress/usr.bin/config/Makefile

@@ -1,9 +1,14 @@
-# $NetBSD: Makefile,v 1.1 2005/10/02 21:27:02 cube Exp $
+# $NetBSD: Makefile,v 1.2 2005/10/04 13:44:23 cube Exp $
 
 # Those configurations only have to be understood by config(1) without
 # errors.
 
-SIMPLE=	SHADOW_INSTANCE
+SIMPLE_SUCCESS=	SHADOW_INSTANCE
+SIMPLE_FAILURE=	POSTPONED_ORPHAN
+
+SIMPLE=	${SIMPLE_SUCCESS} ${SIMPLE_FAILURE}
+
+CONFIG_OPTS.POSTPONED_ORPHAN=	-v
 
 .include <bsd.obj.mk>
 
@@ -22,10 +27,23 @@ clean: ${__conf__}-clean
 .endfor
 
 .for __conf__ in ${SIMPLE}
+
+.if !empty(SIMPLE_SUCCESS:M${__conf__})
+CONFIG_TEST.${__conf__}=	&& echo "Test passed."
+.else
+CONFIG_TEST.${__conf__}=	|| echo "Test passed."
+.endif
+
+CONFIG_LINE.${__conf__}=	${TOOL_CONFIG} ${CONFIG_OPTS.${__conf__}} \
+			    -s ${.CURDIR}/support \
+			    -b ./compile/${__conf__} ${.CURDIR}/${__conf__} \
+			    ${CONFIG_TEST.${__conf__}}
+
 .PHONY: ${__conf__}-regress ${__conf__}-clean
+
 ${__conf__}-regress:
-	@mkdir compile/${__conf__}
-	${TOOL_CONFIG} -s ${.CURDIR}/support -b ./compile/${__conf__} ${.CURDIR}/${__conf__}
+	@mkdir -p compile/${__conf__}
+	${CONFIG_LINE.${__conf__}}
 
 ${__conf__}-clean:
 	@if [ -d compile/${__conf__} ]; then rm -Rf compile/${__conf__}; fi

regress/usr.bin/config/POSTPONED_ORPHAN

@@ -0,0 +1,21 @@
+include "arch/regress/conf/std.regress"
+
+maxusers 4
+
+file-system	REGRESSFS
+
+master0		at root
+
+parenti*	at master?
+
+# Here, parenti is negated before the child* instance is declared.  That
+# means the child* instance does not qualify as an explicit orphan and
+# therefore should _not_ be ignored.
+#
+# config(1) should error out on that config file.
+
+no parenti
+
+child*		at parenti?
+
+config regress root on ?