On 13/02/2017 10:51, Lin Ma wrote: > 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.
But why does the content of .h and .h.tmp not match during "make install"? Paolo > diff --git a/Makefile b/Makefile > index 1a8bfb2..1ca45b2 100644 > --- a/Makefile > +++ b/Makefile > @@ -184,7 +184,7 @@ qemu-version.h: FORCE > printf '""\n'; \ > fi; \ > fi) > $@.tmp) > - $(call quiet-command, cmp -s $@ $@.tmp || mv $@.tmp $@) > + $(call quiet-command, cmp -s $@ $@.tmp || cp $@.tmp $@)