From: Sascha Wildner <saw@online.de>
Date: Sat, 19 Mar 2011 08:17:29 +0000 (+0100)
Subject: Fix buildkernel without -j.
X-Git-Tag: v2.10.0~218
X-Git-Url: http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff_plain/82011fa5f8b50d29a1ddbc45a28774edf7dfbacf

Fix buildkernel without -j.

One of the recent commits by sephe caused genassym.c to depend on
bus_if.h and device_if.h (via machintr.h via bus.h).

However, without -j, these headers would not be generated (from
the .m files) before genassym.c was compiled, causing the kernel
build to break.

As a fix, make genassym.c depend on these headers in the Makefile.

The interesting bit is that this is one of the cases where it
breaks without -j but _does_ work with -j 1 (read: one) due to
the different handling of no -j vs. -j 1 in make(1).
---

diff --git a/sys/conf/kern.post.mk b/sys/conf/kern.post.mk
index cafdfcd..95cb32b 100644
--- a/sys/conf/kern.post.mk
+++ b/sys/conf/kern.post.mk
@@ -73,7 +73,8 @@ hack.So: Makefile
 assym.s: $S/kern/genassym.sh genassym.o
 	sh $S/kern/genassym.sh genassym.o > ${.TARGET}
 
-genassym.o: $S/platform/$P/$M/genassym.c ${FORWARD_HEADERS_COOKIE}
+genassym.o: $S/platform/$P/$M/genassym.c ${FORWARD_HEADERS_COOKIE} \
+	    ${MFILES:T:S/.m$/.h/}
 	${CC} -c ${CFLAGS:N-fno-common:N-mcmodel=small} ${WERROR} \
 	$S/platform/$P/$M/genassym.c