[Buildroot] Issue with iconv_open and Linaro toolchain

[Buildroot] Issue with iconv_open and Linaro toolchain

[Thierry Bultel]

Hi,

My problem was first to find out why my QT (forX11) applications reported
the famous errors at startup:

QIconvCodec::convertFromUnicode: using Latin-1 for conversion, 
iconv_open failed
QIconvCodec::convertToUnicode: using Latin-1 for conversion, iconv_open 
failed

After some diving into the code and some qemu strace stuff, too, I found 
out that the
problem is due to the fact that iconv_open tries to open :

/usr/lib/arm-linux-gnueabihf/gconv/gconv-modules.cache

The /usr/lib/arm-linux-gnueabihf does not exist at all on the target, 
but only in the sysroot.
Copying it manually solves the issue, but I do not feel comfortable with 
having a piece
of the toolchain path on my system...

What is your point of view about this ? What would be the right way to do ?

Thanks
Thierry
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[Buildroot] Issue with iconv_open and Linaro toolchain

[Thomas Petazzoni]

Dear Thierry Bultel,

On Thu, 11 Jul 2013 11:20:52 +0200, Thierry Bultel wrote:

> The /usr/lib/arm-linux-gnueabihf does not exist at all on the target, 
> but only in the sysroot.
> Copying it manually solves the issue, but I do not feel comfortable with 
> having a piece
> of the toolchain path on my system...
> 
> What is your point of view about this ? What would be the right way to do ?

The right way is to add a Buildroot option that copies certain gconv
modules, which are needed on (e)glibc toolchains to make iconv work
properly, and maybe generates the gconv-modules.cache (this is done
using iconvconfig, we'd have to see how to get this tool, or package
it).

Best regards,

Thomas
-- 
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com