[yocto] Antwort: Re: building qtbase for raspberry pi fails

[Felix01 Fischer]

Khem Raj <raj.khem at gmail.com> schrieb am 30.04.2014 10:14:29:

> Von: Khem Raj <raj.khem at gmail.com>
> An: Felix01 Fischer <felix01.fischer at iav.de>, 
> Kopie: "yocto at yoctoproject.org" <yocto at yoctoproject.org>
> Datum: 30.04.2014 10:15
> Betreff: Re: [yocto] building qtbase for raspberry pi fails
> 
> On Tue, Apr 29, 2014 at 4:37 AM, Felix01 Fischer 
> <felix01.fischer at iav.de> wrote:
> > But still I haven't figured out how to get this build correctly so 
qtbase
> > can find and use it.
> 
> I am assuming you need to select this user land recipe to provide
> virtual/libgles2 virtual/egl
> 
> PREFERRED_PROVIDER_virtual/egl = "userland"
> PREFERRED_PROVIDER_virtual/libgres2 = "user land"
> 
> in config metadata



I think you have two typos in the second line. 
It should be
PREFERRED_PROVIDER_virtual/libgles2 ?= "userland"
right?

If yes, then this is already set in rpi-default-providers.inc
(see here 
http://git.yoctoproject.org/cgit/cgit.cgi/meta-raspberrypi/plain/conf/machine/include/rpi-default-providers.inc 
)

Nevertheless I managed to build qtbase now, I still have to figure out 
which options exactly are responsible for this :-)

One thing I now for sure:

I have to add the following line to
"/media/yocto_build/qt5-raspb/build/tmp/work/armv6-vfp-poky-linux-gnueabi/atbase/5.2.1-r0/qtbase-opensource-src-5.2.1/mkspecs/linux-oe-g++/qmake.conf"

"QMAKE_LIBS_EGL += 
"/media/yocto_build/qt5-raspb/build/tmp/sysroots/raspberrypi/usr/lib/libGLESv2.so"

2 Questions:
First, why isn't this library found by default? It clearly is in /usr/lib 
so this should be a no brainer I think
Second, If I have to add this line manually via a bbappend how do I do 
this?
I tried by just adding this line to a qtbase_5.2.1.bbappend, by prefixing 
it with OE_, by substituting the full path with ${STAGING_DIR_TARGET}
and by trying all of these steps in meta-qt5/recipes-qt/qt5/qtbase.inc but 
with no success so far



Unfortunately, I still get the from before when trying to run a Qt 
programm on the raspberrypi:

EGLFS: Unable to query physical screen size, defaulting to 100 dpi.
EGLFS: To override, set QT_QPA_EGLFS_PHYSICAL_WIDTH and 
QT_QPA_EGLFS_PHYSICAL_HEIGHT (in millimeters).
libpng warning: iCCP: Not recognizing known sRGB profile that has been 
edited 
EGL Error : Could not create the egl surface: error = 0x300b


anny suggestions?

Felix
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.yoctoproject.org/pipermail/yocto/attachments/20140506/27d71f7c/attachment.html>