Clean up splash image build. Print messages when creating files.

sys/conf/Makefile.kern.inc

@@ -1,4 +1,4 @@
-#	$NetBSD: Makefile.kern.inc,v 1.246 2015/09/11 01:40:52 uebayasi Exp $
+#	$NetBSD: Makefile.kern.inc,v 1.247 2015/09/15 02:22:43 uebayasi Exp $
 #
 # This file contains common `MI' targets and definitions and it is included
 # at the bottom of each `MD' ${MACHINE}/conf/Makefile.${MACHINE}.
@@ -410,7 +410,7 @@ install-kernel-${MACHINE_NAME}:
 .include "${S}/conf/ldscript.mk"
 .include "${S}/conf/assym.mk"
 .include "${S}/conf/newvers.mk"
-.include "${S}/conf/splash.mk"
+.include "${S}/dev/splash/splash.mk"
 .include "${S}/conf/mdroot.mk"
 .include "${S}/conf/lint.mk"
 .include "${S}/conf/cscope.mk"

sys/conf/splash.mk

@@ -1,4 +0,0 @@
-# $NetBSD: splash.mk,v 1.4 2015/09/15 00:16:42 uebayasi Exp $
-
-# Option for embedding a splashscreen image.
-.include "${S}/dev/splash/splash.mk"

sys/dev/splash/splash.mk

@@ -1,4 +1,6 @@
-# $NetBSD: splash.mk,v 1.5 2015/09/15 00:16:42 uebayasi Exp $
+# $NetBSD: splash.mk,v 1.6 2015/09/15 02:22:43 uebayasi Exp $
+
+.if defined(SPLASHSCREEN_IMAGE)
 
 # Makefile for embedding splash image into kernel.
 .include <bsd.endian.mk>
@@ -18,13 +20,17 @@ BFD_TARGET=${BFD_ELFTARGET}-${BFD_ENDIANNESS}${BFD_CPU}
 BFD_TARGET=${BFD_ELFTARGET}-${BFD_CPU}
 .endif
 
-.if defined(SPLASHSCREEN_IMAGE)
 splash_image.o:	${SPLASHSCREEN_IMAGE}
+	${_MKTARGET_CREATE}
 	cp ${SPLASHSCREEN_IMAGE} splash.image
 	${OBJCOPY} -I binary -B ${MACHINE_CPU:C/x86_64/i386/} \
 		-O ${BFD_TARGET} splash.image splash_image.o
 	rm splash.image
 .else
+
+# SPLASHSCREEN_IMAGE is not defined; build empty splash_image.o.
 splash_image.c:
+	${_MKTARGET_CREATE}
 	echo > $@
+
 .endif