UTF-8 runtime environment

[Brian Clarke]

Hi Todd,

I've been using a non-locale Buildroot/uClibc ARM based system for many 
months now without problems.

I too am now trying to build uClibc locale support into a Buildroot 
built root filesystem with the aim of being able to process UTF-8 
encoded multibyte strings.

I selected Locale support from the Buildroot menus, which appears to 
select to download the pre-generated local data using Buildroot's 
toolchain/uClibc/uClibc.config-locale config file for uClibc.

I do not seem to get any functioning locale support, as for example the 
date command from Busybox returns a corrupt string (ÓÈÊ  sön  1 
00:54:37 UTC 2006) and if I compile and run the tst_nl_langinfo.c locale 
test program from uClibc's extra/locale directory, I get "couldn't set 
locale" for any locale I try, including not specifying a locale which 
should I believe select the default locale.

Do you see any evidence on your ARM system that there is any functioning 
locale support present?

Brian.

rockwell618 at gmail.com wrote:

>Hi,
>
>I am trying to enable support for the en_US.UTF-8 locale  in an ARM/
>linux 2.6.18 environment, using uClibc-0.9.28.
>
>Using Buildroot, I compiled uClibc after selecting the String and
>Stdio Support->Wide Character Support options: "Locale Support, " "Use
>Pre-generated Locale Data, "
>and "Automatically Download the "Pre-generated Locale Data (if necessary)."
>
>My problem is that I do not have a sense for how the runtime
>environment should be configured on the target device so that the
>locale support can actually be used by my application.  For instance,
>as with glibc, are the LANG and LC_* env vars used? Should
>/usr/lib/locale be created to contain the locale data?  If not, where
>is the "Pre-generated Locale Data" supposed to reside on the target
>device -- or is it actually built into uClibc?   It's all been
>documented I'm sure but I've overlooked it somehow.
>
>I would greatly appreciate any pointers to documentation (or other
>guidance) on the proper runtime environment for uClibc UTF-8 support.
>
>Thanks,
>Todd
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