[Buildroot] QSound

[Buildroot] QSound

[Mahmoud Mamdouh]

i made OS with buildroot with busybox with Qt

and trying Opening app with QSound

put i get
"

can't load library 'libQtMultimedia.so.4
"

also i included in Qt

Multimedia Module
QtMultimedia Audio backend

plz help


-- 
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MMS
@MamdouhAlShamy
Sync :Logistics and Reception Director
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[Buildroot] QSound

[Mitch Davis]

On Sun, Jul 4, 2010 at 9:29 PM, Mahmoud Mamdouh
<mamdouh.al.shamy@gmail.com> wrote:
> i made OS with buildroot with busybox with Qt
>
> and trying Opening app with QSound
>
> put i get
> "
>
> can't load library 'libQtMultimedia.so.4

Mahmoud,

Here are some thoughts on how to find what is causing the problem.

Do you have that library on your target?

Can you please run "ldd yourapp"?  Can it find that library?  Is the
LD_LIBRARY_PATH environment variable set?  Can you look in /lib,
/usr/lib and the directories in LD_LIBRARY_PATH for that library?

If you don't find that library, you have to find out why it's not there.

When you type "make" for buildroot, you get output telling you what
gets compiled.  If you start with a fresh compile, and save that
output, and search for libQtMultimedia, can you see where it gets
installed?

If not, maybe it's not being installed.  Why?  Do some grepping
through package/ (and its subdirs), and see if you can find which
package provides that library.  Is that package being built?  What's
the config var in your buildroot .config file for that package?  Is it
set?

> plz help

The more info you can give us (for example, what you've tried, and
screen outputs and /var/log/messages), the easier it is for us to help
you.  Please remember that.  You can put large listings on a site such
as http://pastebin.org/

Mitch.

[Buildroot] QSound

[Thomas Petazzoni]

On Sun, 4 Jul 2010 14:29:40 +0300
Mahmoud Mamdouh <mamdouh.al.shamy@gmail.com> wrote:

> can't load library 'libQtMultimedia.so.4

There is a bug in Buildroot 2010.05: Buildroot doesn't copy the
libQtMultimedia library to the target when BR2_PACKAGE_QT_MULTIMEDIA is
enabled. This bug is already fixed in the development tree and the fix
will be part of the next 2010.08 release.

In the mean time, you can apply commit
79ec8e88f3a5afacff27e8eb94a5aeda17cf734a to your tree to fix the issue.

Regards,

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

[Buildroot] QSound

[Mitch Davis]

On Mon, Jul 5, 2010 at 7:44 PM, Thomas Petazzoni
<thomas.petazzoni@free-electrons.com> wrote:
> On Sun, 4 Jul 2010 14:29:40 +0300
> Mahmoud Mamdouh <mamdouh.al.shamy@gmail.com> wrote:
>
>> can't load library 'libQtMultimedia.so.4
>
> There is a bug in Buildroot 2010.05: Buildroot doesn't copy the
> libQtMultimedia library to the target when BR2_PACKAGE_QT_MULTIMEDIA is
> enabled.

Ahh, that would explain it :-)

> In the mean time, you can apply commit
> 79ec8e88f3a5afacff27e8eb94a5aeda17cf734a to your tree to fix the issue.

Mahmoud, if you're not a git user, you can retrieve the patch here:

  http://git.buildroot.net/buildroot/patch/?id=79ec8e88f3a5afacff27e8eb94a5aeda17cf734a

Mitch.