From: "Michael S. Tsirkin" <mst@redhat.com>
To: Anthony Liguori <anthony@codemonkey.ws>, qemu-devel@nongnu.org
Subject: [Qemu-devel] [PATCH] qemu: delete rule target on error
Date: Mon, 7 Dec 2009 21:04:52 +0200 [thread overview]
Message-ID: <20091207190452.GA8175@redhat.com> (raw)
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
reply other threads:[~2009-12-07 19:07 UTC|newest]
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