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authorLin Ma <lma@suse.com>2017-02-15 10:40:30 +0800
committerPaolo Bonzini <pbonzini@redhat.com>2017-02-16 15:30:49 +0100
commitd9e73d32a891a4d9d9b14dcdd27490ec2d13026a (patch)
treea5b8513eb1814a629cd9ce5a39c85be3e7a8fb63
parent3741c2503bc06c7e3c5bd46a9d4e79a11bd7e7ed (diff)
downloadqemu-arm-d9e73d32a891a4d9d9b14dcdd27490ec2d13026a.tar.gz
Makefile: avoid leaving the temporary QEMU_PKGVERSION header file
By commit 67a1de0d, When we perform 'git pull && make && sudo make install', In 'make' stage a qemu-version.h.tmp will be generated. If the content of qemu-version.h.tmp and qemu-version.h aren't consistent, The qemu-version.h.tmp will be renamed to qemu-version.h. Because of the target FORCE, The same action will be do again in 'make install' stage. In 'make install' stage, If there is no qemu-version.h.tmp exists and we run 'make install' with sudo, The owner and group of new qemu-version.h.tmp will be privileged user/group. When we run 'make' next time, qemu-version.h.tmp can't be overwritten because of permission issue. This patch removed qemu-version.h.tmp after build to fix this issue. Signed-off-by: Lin Ma <lma@suse.com> Message-Id: <20170215024030.23895-1-lma@suse.com> Reviewed-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
-rw-r--r--Makefile6
1 files changed, 5 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index b993741183..830fa5a234 100644
--- a/Makefile
+++ b/Makefile
@@ -299,7 +299,11 @@ qemu-version.h: FORCE
printf '""\n'; \
fi; \
fi) > $@.tmp)
- $(call quiet-command, cmp -s $@ $@.tmp || mv $@.tmp $@)
+ $(call quiet-command, if ! cmp -s $@ $@.tmp; then \
+ mv $@.tmp $@; \
+ else \
+ rm $@.tmp; \
+ fi)
config-host.h: config-host.h-timestamp
config-host.h-timestamp: config-host.mak