[Qemu-devel] Makefile: Dependency problem

[Qemu-devel] Makefile: Dependency problem

[Kevin Wolf]

Hi,

I just had a failing build like this (make -j3, so these are running in
parallel):

lt LINK libcacard.la
AR    libqemuutil.a
CC    stubs/mon-printf.o
CC    stubs/mon-print-filename.o
ar: stubs/mon-printf.o: No such file or directory
make: *** [libcacard.la] Fehler 1
make: *** Warte auf noch nicht beendete Prozesse...

Restarting make obviously fixed the problem, but I thought I'd mention it
here so that the dependencies can be fixed.

Kevin

Re: [Qemu-devel] Makefile: Dependency problem

[Paolo Bonzini]

> I just had a failing build like this (make -j3, so these are running in
> parallel):
> 
> lt LINK libcacard.la
> AR    libqemuutil.a
> CC    stubs/mon-printf.o
> CC    stubs/mon-print-filename.o
> ar: stubs/mon-printf.o: No such file or directory
> make: *** [libcacard.la] Fehler 1
> make: *** Warte auf noch nicht beendete Prozesse...
> 
> Restarting make obviously fixed the problem, but I thought I'd mention it
> here so that the dependencies can be fixed.

Please try to reproduce it with "make V=1".  Did you have
an "lt CC  stubs/mon-printf.lo" before?

What version of Make is this?

Paolo

Re: [Qemu-devel] Makefile: Dependency problem

[Kevin Wolf]

Am 08.05.2013 um 10:44 hat Paolo Bonzini geschrieben:
> 
> > I just had a failing build like this (make -j3, so these are running in
> > parallel):
> > 
> > lt LINK libcacard.la
> > AR    libqemuutil.a
> > CC    stubs/mon-printf.o
> > CC    stubs/mon-print-filename.o
> > ar: stubs/mon-printf.o: No such file or directory
> > make: *** [libcacard.la] Fehler 1
> > make: *** Warte auf noch nicht beendete Prozesse...
> > 
> > Restarting make obviously fixed the problem, but I thought I'd mention it
> > here so that the dependencies can be fixed.
> 
> Please try to reproduce it with "make V=1".

Doesn't seem to be reproducable now.

> Did you have an "lt CC  stubs/mon-printf.lo" before?

Nope, neither before this, nor during the following make run. So I guess
it left an old version of it? Would explain why it doesn't reproduce
after a "make clean".

> What version of Make is this?

make-3.82-13.fc18.x86_64

Kevin

Re: [Qemu-devel] Makefile: Dependency problem

[Paolo Bonzini]

Il 08/05/2013 11:00, Kevin Wolf ha scritto:
> Am 08.05.2013 um 10:44 hat Paolo Bonzini geschrieben:
>>
>>> I just had a failing build like this (make -j3, so these are running in
>>> parallel):
>>>
>>> lt LINK libcacard.la
>>> AR    libqemuutil.a
>>> CC    stubs/mon-printf.o
>>> CC    stubs/mon-print-filename.o
>>> ar: stubs/mon-printf.o: No such file or directory
>>> make: *** [libcacard.la] Fehler 1
>>> make: *** Warte auf noch nicht beendete Prozesse...
>>>
>>> Restarting make obviously fixed the problem, but I thought I'd mention it
>>> here so that the dependencies can be fixed.
>>
>> Please try to reproduce it with "make V=1".
> 
> Doesn't seem to be reproducable now.
> 
>> Did you have an "lt CC  stubs/mon-printf.lo" before?
> 
> Nope, neither before this, nor during the following make run. So I guess
> it left an old version of it?

Yeah, it's possible that you have the .lo file, but deleted the .o file.
 libtool actually needs both, but the Makefile rule only has the .lo
file (if you try "%.lo %.o: %.c", Make starts using libtool to build
everything!).

Paolo

> Would explain why it doesn't reproduce after a "make clean".
> 
>> What version of Make is this?
> 
> make-3.82-13.fc18.x86_64
> 
> Kevin
> 
> 

Re: [Qemu-devel] Makefile: Dependency problem

[Dongsheng Song]

On Wed, May 8, 2013 at 4:39 PM, Kevin Wolf <kwolf@redhat.com> wrote:
> Hi,
>
> I just had a failing build like this (make -j3, so these are running in
> parallel):
>
> lt LINK libcacard.la
> AR    libqemuutil.a
> CC    stubs/mon-printf.o
> CC    stubs/mon-print-filename.o
> ar: stubs/mon-printf.o: No such file or directory
> make: *** [libcacard.la] Fehler 1
> make: *** Warte auf noch nicht beendete Prozesse...
>
> Restarting make obviously fixed the problem, but I thought I'd mention it
> here so that the dependencies can be fixed.
>
> Kevin
>

I use 'make -j8' on qemu 1.4.1 and 1.5.0-rc, both looks fine:

--build=x86_64-unknown-linux-gnu --host=i686-w64-mingw32
--build=x86_64-unknown-linux-gnu --host=x86_64-w64-mingw32

Regards,
Dongsheng