* [Qemu-devel] [PATCH] qemu: delete rule target on error
@ 2009-12-07 19:04 Michael S. Tsirkin
0 siblings, 0 replies; only message in thread
From: Michael S. Tsirkin @ 2009-12-07 19:04 UTC (permalink / raw)
To: Anthony Liguori, qemu-devel
Instruct make to remove any rule target on error. This prevetns
situation where there was an error during build but generated file still
stays behind.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
rules.mak | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/rules.mak b/rules.mak
index 16713ba..5d9f684 100644
--- a/rules.mak
+++ b/rules.mak
@@ -47,3 +47,6 @@ cc-option = $(if $(shell $(CC) $1 $2 -S -o /dev/null -xc /dev/null \
%.h-timestamp: %.mak
$(call quiet-command, sh $(SRC_PATH)/create_config < $< > $@, " GEN $*.h")
@cmp $@ $*.h >/dev/null 2>&1 || cp $@ $*.h
+
+# will delete the target of a rule if commands exit with a nonzero exit status
+.DELETE_ON_ERROR:
--
1.6.5.2.143.g8cc62
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2009-12-07 19:04 [Qemu-devel] [PATCH] qemu: delete rule target on error Michael S. Tsirkin
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