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[Qemu-devel] [PATCH] Fix a parallel build failure.
From: |
Daniel Jacobowitz |
Subject: |
[Qemu-devel] [PATCH] Fix a parallel build failure. |
Date: |
Wed, 4 Nov 2009 15:20:09 -0500 |
From: Daniel Jacobowitz <address@hidden>
With enough parallelism, make will run all the dependencies of
build-all at the same time:
build-all: config-host.h config-all-devices.h $(DOCS) $(TOOLS)
So some of the $(TOOLS) will build before config-host.h is finished.
The object files need to depend on it explicitly. Subdirectories are
OK since they are started from the body of build-all, not its
dependencies.
Signed-off-by: Daniel Jacobowitz <address@hidden>
---
Makefile | 2 ++
rules.mak | 2 +-
2 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/Makefile b/Makefile
index c783aa4..ed9a420 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,7 @@
# Makefile for QEMU.
+GENERATED_HEADERS = config-host.h config-all-devices.h
+
ifneq ($(wildcard config-host.mak),)
# Put the all: rule here so that config-host.mak can contain dependencies.
all: build-all
diff --git a/rules.mak b/rules.mak
index 5d7e8bb..4eb1f90 100644
--- a/rules.mak
+++ b/rules.mak
@@ -13,7 +13,7 @@ MAKEFLAGS += -rR
QEMU_CFLAGS += -MMD -MP -MT $@
-%.o: %.c
+%.o: %.c $(GENERATED_HEADERS)
$(call quiet-command,$(CC) $(QEMU_CFLAGS) $(CFLAGS) -c -o $@ $<," CC
$(TARGET_DIR)$@")
%.o: %.S
--
1.6.5.2
- [Qemu-devel] [PATCH] Fix a parallel build failure.,
Daniel Jacobowitz <=