QtMultimedia can't detect libs during cross-compilation

r3d9u11

Hi. I have another one trouble with cross-compilation of Qt Multimedia,
I have installed OpenGL ES libs (with dev packages) and GStreamer libs (also with -dev packages).

QtCore detected all needed libs, e.g. OpenGL ES 2.0 and OpengGL ES 3.0 (here is QtCore config)

However, Qt Multimedia doesn't see needed libraries (e.g Vivante GPU and GStreamer1.0)

Running configuration tests...
Checking for ALSA... no
Checking for Vivante GPU... no
Checking for GStreamer 1.0... no
Checking for GStreamer 0.10... no
Checking for Video for Linux... yes
Checking for OpenAL... no
Checking for PulseAudio >= 0.9.10... no
Checking for libresourceqt5... no
Done running configuration tests.

Configure summary:

Qt Multimedia:
  ALSA ................................... no
  GStreamer 1.0 .......................... no
  GStreamer 0.10 ......................... no
  Video for Linux ........................ yes
  OpenAL ................................. no
  PulseAudio ............................. no
  Resource Policy (libresourceqt5) ....... no
  Windows Audio Services ................. no
  DirectShow ............................. no
  Windows Media Foundation ............... no

Here is installed packaged on destination system (ubuntu1804-armhf):

libgstreamer1.0-0
libgstreamer1.0-dev
gstreamer1.0-tools
gstreamer1.0-plugins-base
gstreamer1.0-plugins-good
gstreamer1.0-plugins-base-apps
libgstreamer-plugins-base1.0-dev

I tried to check PKG_CONFIG and some includes on destination system (ubuntu1804-armhf):

$ sudo chroot "sysroot" pkg-config --libs gstreamer-1.0
-lgstreamer-1.0 -lgobject-2.0 -lglib-2.0

$ sudo chroot "sysroot" ls /usr/include/GLES2
gl2.h  gl2ext.h  gl2platform.h	gl2rename.h  gl2unname.h

$sudo chroot "sysroot" ls /usr/include/gstreamer-1.0/gst
allocators  glib-compat.h     gstbus.h		 gstcontrolbinding.h	     gstdynamictypefactory.h  gstghostpad.h    gstobject.h	   gstpoll.h	    gststreamcollection.h  gsttoc.h		 gstutils.h	rtsp
app	    gst.h	      gstcaps.h		 gstcontrolsource.h	     gstelement.h	      gstinfo.h        gstpad.h		   gstpreset.h	    gststreams.h	   gsttocsetter.h	 gstvalue.h	sdp
audio	    gstallocator.h    gstcapsfeatures.h  gstdatetime.h		     gstelementfactory.h      gstiterator.h    gstpadtemplate.h    gstpromise.h     gststructure.h	   gsttracer.h		 gstversion.h	tag
base	    gstatomicqueue.h  gstchildproxy.h	 gstdebugutils.h	     gstelementmetadata.h     gstmacros.h      gstparamspecs.h	   gstprotection.h  gstsystemclock.h	   gsttracerfactory.h	 math-compat.h	video
check	    gstbin.h	      gstclock.h	 gstdevice.h		     gstenumtypes.h	      gstmemory.h      gstparse.h	   gstquery.h	    gsttaglist.h	   gsttracerrecord.h	 net
controller  gstbuffer.h       gstcompat.h	 gstdevicemonitor.h	     gsterror.h		      gstmessage.h     gstpipeline.h	   gstregistry.h    gsttagsetter.h	   gsttypefind.h	 pbutils
fft	    gstbufferlist.h   gstconfig.h	 gstdeviceprovider.h	     gstevent.h		      gstmeta.h        gstplugin.h	   gstsample.h	    gsttask.h		   gsttypefindfactory.h  riff
gl	    gstbufferpool.h   gstcontext.h	 gstdeviceproviderfactory.h  gstformat.h	      gstminiobject.h  gstpluginfeature.h  gstsegment.h     gsttaskpool.h	   gsturi.h		 rtp

As I see (from QtCore config) PKG_CONFIG and ToolChain were setted right and all needed packages were installed.

Any ideas?
What I'm doing wrong?

Thanks!

SGaist

Hi,

You should add the -v option to configure to see what exactly is happening with the GStreamer related tests.

r3d9u11

@SGaist Thanks for answer. I think you mean parameter "-v" as "verbose" for "./configure". It is right for QtBase, because it configures via "./configure".

But there is not "configure" script in qtmultimedia folder and QtMultimedia configures via qmake. So parameter -v means "version" (not "verbose"):

cd qtmultimedia
../sysroot/opt/Qt5.9/bin/qmake  -v
QMake version 3.1
Using Qt version 5.9.8 in ../sysroot/opt/Qt5.9/lib

r3d9u11

@SGaist here is query output:

<SYSROOT_PATH>/opt/Qt5.9/bin/qmake -query 
QT_SYSROOT:<SYSROOT_PATH>
QT_INSTALL_PREFIX:<SYSROOT_PATH>/opt/Qt5.9
QT_INSTALL_PREFIX/raw:/opt/Qt5.9
QT_INSTALL_ARCHDATA:<SYSROOT_PATH>/opt/Qt5.9
QT_INSTALL_ARCHDATA/raw:/opt/Qt5.9
QT_INSTALL_DATA:<SYSROOT_PATH>/opt/Qt5.9
QT_INSTALL_DATA/raw:/opt/Qt5.9
QT_INSTALL_DOCS:<SYSROOT_PATH>/opt/Qt5.9/doc
QT_INSTALL_DOCS/raw:/opt/Qt5.9/doc
QT_INSTALL_HEADERS:<SYSROOT_PATH>/opt/Qt5.9/include
QT_INSTALL_HEADERS/raw:/opt/Qt5.9/include
QT_INSTALL_LIBS:<SYSROOT_PATH>/opt/Qt5.9/lib
QT_INSTALL_LIBS/raw:/opt/Qt5.9/lib
QT_INSTALL_LIBEXECS:<SYSROOT_PATH>/opt/Qt5.9/libexec
QT_INSTALL_LIBEXECS/raw:/opt/Qt5.9/libexec
QT_INSTALL_BINS:<SYSROOT_PATH>/opt/Qt5.9/bin
QT_INSTALL_BINS/raw:/opt/Qt5.9/bin
QT_INSTALL_TESTS:<SYSROOT_PATH>/opt/Qt5.9/tests
QT_INSTALL_TESTS/raw:/opt/Qt5.9/tests
QT_INSTALL_PLUGINS:<SYSROOT_PATH>/opt/Qt5.9/plugins
QT_INSTALL_PLUGINS/raw:/opt/Qt5.9/plugins
QT_INSTALL_IMPORTS:<SYSROOT_PATH>/opt/Qt5.9/imports
QT_INSTALL_IMPORTS/raw:/opt/Qt5.9/imports
QT_INSTALL_QML:<SYSROOT_PATH>/opt/Qt5.9/qml
QT_INSTALL_QML/raw:/opt/Qt5.9/qml
QT_INSTALL_TRANSLATIONS:<SYSROOT_PATH>/opt/Qt5.9/translations
QT_INSTALL_TRANSLATIONS/raw:/opt/Qt5.9/translations
QT_INSTALL_CONFIGURATION:<SYSROOT_PATH>/opt/Qt5.9/etc/xdg
QT_INSTALL_CONFIGURATION/raw:/opt/Qt5.9/etc/xdg
QT_INSTALL_EXAMPLES:<SYSROOT_PATH>/opt/Qt5.9/examples
QT_INSTALL_EXAMPLES/raw:/opt/Qt5.9/examples
QT_INSTALL_DEMOS:<SYSROOT_PATH>/opt/Qt5.9/examples
QT_INSTALL_DEMOS/raw:/opt/Qt5.9/examples
QT_HOST_PREFIX:<SYSROOT_PATH>/opt/Qt5.9
QT_HOST_DATA:<SYSROOT_PATH>/opt/Qt5.9
QT_HOST_BINS:<SYSROOT_PATH>/opt/Qt5.9/bin
QT_HOST_LIBS:<SYSROOT_PATH>/opt/Qt5.9/lib
QMAKE_SPEC:linux-g++
QMAKE_XSPEC:devices/linux-imx6-g++
QMAKE_VERSION:3.1
QT_VERSION:5.9.8

And here is config.log: https://pastebin.com/c58pvyNt

Something strange bacause all includes and sysroot were setted right:

+ cd <CACHE_PATH>/qtmultimedia/config.tests/gstreamer && MAKEFLAGS= make
> <CACHE_PATH>/gcc-linaro-7.4.1-2019.02-i686_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-g++ -c -pipe -march=armv7-a -mfpu=neon -DLINUX=1 -DEGL_API_FB=1 -mfloat-abi=hard --sysroot=<SYSROOT_PATH> -pthread -I//usr/include/gstreamer-1.0 -I//usr/include/orc-0.4 -I//usr/include/gstreamer-1.0 -I//usr/include/glib-2.0 -I//usr/lib/arm-linux-gnueabihf/glib-2.0/include -g -w -fPIC  -I. -I<SYSROOT_PATH>/opt/Qt5.9/mkspecs/devices/linux-imx6-g++ -o main.o main.cpp
> In file included from //usr/include/glib-2.0/glib/galloca.h:32:0,
>                  from //usr/include/glib-2.0/glib.h:30,
>                  from //usr/include/gstreamer-1.0/gst/gst.h:27,
>                  from main.cpp:31:
> //usr/include/glib-2.0/glib/gtypes.h:32:10: fatal error: glibconfig.h: No such file or directory
>  #include <glibconfig.h>

However glibconfig.h exists:

$ sudo chroot "<SYSROOT_PATH>" pkg-config --cflags glib-2.0
-I/usr/include/glib-2.0 -I/usr/lib/arm-linux-gnueabihf/glib-2.0/include

$ sudo chroot "<SYSROOT_PATH>" ls /usr/lib/arm-linux-gnueabihf/glib-2.0/include
glibconfig.h

r3d9u11

@r3d9u11 Well, topic was solved with previous version of toolchain (g++ v6)