Quick hack to make fast kernel builds easier

[M. Warner Losh]

This patch makes

make buildkernel -DKERNFAST

a short cut for

make buildkernel -DNO_KERNELCLEAN -DNO_KERNELCONFIG -DNO_KERNELDEPEND

which is a lot shorter to type.

comments?

Warner


Index: Makefile.inc1
===================================================================
--- Makefile.inc1	(revision 186807)
+++ Makefile.inc1	(working copy)
@@ -5,6 +5,7 @@
 #	-DNO_CLEANDIR run ${MAKE} clean, instead of ${MAKE} cleandir
 #	-DNO_CLEAN do not clean at all
 #	-DNO_SHARE do not go into share subdir
+#	-DKERNFAST define NO_KERNELCONFIG, NO_KERNELCLEAN and NO_KERNELCONFIG
 #	-DNO_KERNELCONFIG do not run config in ${MAKE} buildkernel
 #	-DNO_KERNELCLEAN do not run ${MAKE} clean in ${MAKE} buildkernel
 #	-DNO_KERNELDEPEND do not run ${MAKE} depend in ${MAKE} buildkernel
@@ -697,6 +699,11 @@
 # be set to cross-build, we have to make sure TARGET is set
 # properly.
 
+.if defined(KERNFAST)
+NO_KERNELCLEAN=	t
+NO_KERNELCONFIG=	t
+NO_KERNELDEPEND=	t
+.endif
 .if !defined(KERNCONF) && defined(KERNEL)
 KERNCONF=	${KERNEL}
 KERNWARN=