On 08/12/2016 12:26 AM, Burton, Ross wrote:
>
> On 8 August 2016 at 07:04, Chen Qi <Qi.Chen@windriver.com 
> <mailto:Qi.Chen@windriver.com>> wrote:
>
>     Previously, localedir is set to "${libdir}/locale". This would result
>     in locale database installed in '/usr/lib64/locale' in some
>     multilib case.
>     For example, if we build out a multilib x86-64 self-hosted image
>     and we try
>     to build projects on this host, things broke and the following
>     error appears.
>
>       Please use a locale setting which supports utf-8.
>       Python can't change the filesystem locale after loading so we
>     need a utf-8 when python starts or things won't work.
>
>     This is because '/usr/lib/locale' is the default one. And actually the
>     nativesdk-glibc is now set to use '/usr/lib/locale'.
>
>
> This is irrelevant as nativesdk-glibc is configured to read the 
> *hosts* locale directory.

Hi Ross,

I think I didn't state things clearly. Sorry for that.
I mentioned nativesdk-glibc because of the following use case.
On a self-hosted image, which is built out by Yocto, we install 
buildtools-tarball, make use of it and start building. This is why I 
mentioned nativesdk-glibc.


>     Thus, we change the setting of 'localedir' to
>     '${nonarch_libdir}/locale' to
>     fix the above problem.
>
>
> I see two issues here:
> 1) should binary locales be considered shared in multilib 
> environments? (libdir vs nonarch_libdir)

I think yes.
Below is something from glibc source. The file is 
git/sysdeps/unix/sysv/linux/x86_64/64/configure.

     # Locale data can be shared between 32-bit and 64-bit libraries.
     libc_cv_complocaledir='${exec_prefix}/lib/locale'

You can see that it states clearly that the binary data could be shared 
and it uses 'lib'.

> 2) what packages are not respecting this variable and hard-coding 
> /usr/lib/locale?
>

I don't know. But the manual of locale has stated clearly that 
'/usr/lib/locale' is the default directory.
Something from the manual below.

        LOCPATH

                The directory where locale data is stored.  By default, 
/usr/lib/locale is used.


> I'm guessing WR think yes to (1), and is the glibc patch you also sent 
> the fundamental fix to (2)?
>

I don't know why the glibc patch is needed.
At a first glance, I think it might be related to 
GLIBC_INTERNAL_USE_BINARY_LOCALE handling. The value of this variable is 
overridden in our bbappend file.
This might also be related to cross-localedef recipe.

Best Regards,
Chen Qi

> Ross