[aur-general] avoid usage of fakeroot: always use of build() and package() (Was: application as a TU)

Allan McRae allan at archlinux.org
Sun Nov 22 01:17:36 EST 2009


Ray Rashif wrote:
> 2009/11/22 Gerardo Exequiel Pozzi <vmlinuz386 at yahoo.com.ar>
> 
>> Lukáš Jirkovský wrote:
>>> 2009/11/21 Gerardo Exequiel Pozzi <vmlinuz386 at yahoo.com.ar>:
>>>
>>>> hollunder at gmx.at wrote:
>>>>
>>>>> On Sat, 21 Nov 2009 14:24:58 -0300
>>>>> Gerardo Exequiel Pozzi <vmlinuz386 at yahoo.com.ar> wrote:
>>>>>
>>>>>
>>>>>
>>>>>> Andrea Scarpino wrote:
>>>>>>
>>>>>>
>>>>>>> Why do you use package() function when the package isn't a splitted
>>>>>>> package?
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>> Hello :)
>>>>>>
>>>>>> Using both build() and package() is not necessary condition for use
>>>>>> only with splitted packages, its avoid to use the fakeroot on building
>>>>>> process that is not needed in 99% of packages.
>>>>>>
>>>>>> Good luck!
>>>>>>
>>>>>>
>>>>>>
>>>>> Sorry, but I consider the use of fakeroot a good thing, it helps
>>>>> to reveal errors while packaging/creating the PKGBUILD at least. Don't
>>>>> know why it should be avoided.
>>>>>
>>>>>
>>>>>
>>>> fakeroot make a table of function pointers for many file manipulation
>>>> calls, like open(), close(), chmod() and etc -> overhead, slowdowns
>>>> (small of course)
>>>> During the build process file perms are not necessary to be "tracked",
>>>> or at least in 99% of packages. Only during the install process is only
>>>> needed.
>>>>
>>>> If you have an example that breaks this, please let me know ;)
>>>>
>>>> --
>>>> Gerardo Exequiel Pozzi ( djgera )
>>>> http://www.djgera.com.ar
>>>> KeyID: 0x1B8C330D
>>>> Key fingerprint = 0CAA D5D4 CD85 4434 A219  76ED 39AB 221B 1B8C 330D
>>>>
>>>>
>>>>
>>>>
>>> Nice feature! I didn't know that using package() avoids using of
>> fakeroot.
>>> Back to my point. There used to be a problem with compilation of
>>> amarok1 package from AUR only because of fakeroot and I guess that it
>>> would also help with building of mplayer (configure crashes under
>>> fakeroot environment and needs to be patched but maybe it was fixed
>>> meanwile alongside with amarok1 problem). So in some specific cases I
>>> can see the point of using separate package() even when the PKGBUILD
>>> builds only one package.
>>>
>>> best,
>>> Lukas
>>>
>>>
>> ;)
>>
>> Most reported crashes on bugtracker are because nvidia libgl, that
>> conflics with libfakeroot, both uses dlsym() (nvidia i don't know why
>> does this, fakeroot do this to fill a table of pointer to functions),
>> the result is a jump to NULL :P
>> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=516024#75
>>
>>
>>
>> --
>> Gerardo Exequiel Pozzi ( djgera )
>> http://www.djgera.com.ar
>> KeyID: 0x1B8C330D
>> Key fingerprint = 0CAA D5D4 CD85 4434 A219  76ED 39AB 221B 1B8C 330D
>>
>>
>>
> Hi Gerardo can you confirm that there are no (owner) permission issues when
> building without fakeroot (i.e all owned by user)? I don't see chown
> anywhere other than extract_sources().
>  

If your packaging is done properly, then there is no issues.  Always use 
"install" and not "cp".

Allan




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