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Makefile: avoid leaving the temporary QEMU_PKGVERSION header file

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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>
This commit is contained in:
Lin Ma 2017-02-15 10:40:30 +08:00 committed by Paolo Bonzini
parent 3741c2503b
commit d9e73d32a8
1 changed files with 5 additions and 1 deletions
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6
Makefile
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@ -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