Re: [PATCH] virkeymaps.h: Fix VPATH build with --disable-dependency-tracking

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On 03.11.2015 11:09, Peter Krempa wrote:
> On Tue, Nov 03, 2015 at 10:55:31 +0100, Peter Krempa wrote:
>> On Tue, Nov 03, 2015 at 10:40:50 +0100, Peter Krempa wrote:
>>> On Tue, Nov 03, 2015 at 09:08:04 +0100, Michal Privoznik wrote:
>>>> Funny things happen when you try to do a VPATH build and pass
>>>> --disable-dependency-tracking argument to the configure script.
>>>> Not only the directory structure is not created at the end of
>>>> configure phase, but also contradictory to others, virkeymaps.h
>>>
>>> Maybe that's the actual problem.
> 
> [...]
> 
>> A proper fix will be something along:
>>
>> diff --git a/src/Makefile.am b/src/Makefile.am
>> index 99b4993..db0ca54 100644
>> --- a/src/Makefile.am
>> +++ b/src/Makefile.am
>> @@ -1056,6 +1056,7 @@ libvirt_util_la_LIBADD = $(CAPNG_LIBS) $(YAJL_LIBS) $(LIBNL_LIBS) \
>>                 $(LIB_CLOCK_GETTIME) $(DBUS_LIBS) $(MSCOM_LIBS) $(LIBXML_LIBS) \
>>                 $(SECDRIVER_LIBS) $(NUMACTL_LIBS) $(SYSTEMD_DAEMON_LIBS) \
>>                 $(POLKIT_LIBS)
>> +libvirt_util_DEPENDENCIES = util/keymaps.h
> 
> Okay, this didn't work. I thought it did, but I've looked into a wrong
> terminal window ...
> 
> This does work though:
> 
> diff --git a/src/Makefile.am b/src/Makefile.am
> index 99b4993..8d7d3c6 100644
> --- a/src/Makefile.am
> +++ b/src/Makefile.am
> @@ -180,7 +180,8 @@ MAINTAINERCLEANFILES += util/virkeymaps.h
> 
>  util/virkeymaps.h: $(srcdir)/util/keymaps.csv  \
>                 $(srcdir)/util/virkeycode-mapgen.py
> -       $(AM_V_GEN)$(PYTHON) $(srcdir)/util/virkeycode-mapgen.py \
> +       $(AM_V_GEN) $(MKDIR_P) util;\
> +               $(PYTHON) $(srcdir)/util/virkeycode-mapgen.py \
>           <$(srcdir)/util/keymaps.csv >util/virkeymaps.h
> 
>  # Internal generic driver infrastructure
> 

Of course this will work as long as you are 'mkdir'-ing. My idea was
that we should not do that directly (as that proves we have an error
somewhere IMO), but let automake do that for us instead.

Michal

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