OpenGL ES 2.x disabled.

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Hello,
I tried to configure Qt5 using this command
./configure v -opensource -confirm-license -no-pch -no-xcb -no-opengl -opengl es2 -make libs -device imx6 -compile-examples -device-option CROSS_COMPILE=/opt/freescale/usr/local/gcc-4.6.2-glibc-2.13-linaro-multilib-2011.12/fsl-linaro-toolchain/bin/arm-fsl-linux-gnueabi -sysroot /ltib_install/ltib/rootfs -no-gcc-sysroot -prefix /opt/qt5
I am getting below error..
opengles2.cpp:45:25: fatal error: GLES2/gl2.h: No such file or directory
compilation terminated.
make: *** [opengles2.o] Error 1
OpenGL ES 2.x disabled.
The OpenGL ES 2.0 functionality test failed! You might need to modify the include and library search paths by editing QMAKE_INCDIR_OPENGL_ES2, QMAKE_LIBDIR_OPENGL_ES2 and QMAKE_LIBS_OPENGL_ES2 in /home/jigar/qt5/qtbase/mkspecs/devices/linux-imx6-g++.

sierdzio

OpenGL is required by QtGui and QtQuick modules: you can't compile them without it. You can skip unneeded modules with
@
-skip modulename
@

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Hello Sierdzio,
i am new in QT and also in Ubuntu.
I don't get it how can i skip modules?

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my qmake.conf file is like this..

qmake configuration for the Freescale iMX6 boards (single, dual and quad)

This mkspec is based and tested on the ltib-source-release 3.0.15

Building ltib including glib, gpu-drivers and what ever you want to use (e.g. dbus or fontconfig)

This mkspec is tested with a framebuffer (eglfs) configuration (not testes with X11)

A typical configure line looks like:

/home/tsenyk/qt5/qt5/configure -opensource -confirm-license -make libs -device imx6 \

-device-option CROSS_COMPILE=/opt/freescale/usr/local/gcc-4.6.2-glibc-2.13-linaro-multilib-2011.12/fsl-linaro-toolchain/bin/arm-fsl-linux-gnueabi- \

-sysroot <path-to-your-ltib-install>/rootfs -no-gcc-sysroot \

-prefix /usr/local/Qt-5.0.0/Qt5-imx6-1

NOTE: currently ltib doesn't produce a proper staging/sysroot-filessystem.

If gcc's --sysroot is used, the toolchain doesn't find basic binaries (e.g. crt1.o),

therefore you have to pass -no-gcc-sysroot to configure if you pass -sysroot to configure!

include(../common/linux_device_pre.conf)

EGLFS_PLATFORM_HOOKS_SOURCES = $$PWD/qeglfshooks_imx6.cpp

QMAKE_INCDIR += $$[QT_SYSROOT]/usr/include
QMAKE_LIBDIR += $$[QT_SYSROOT]/usr/lib

QMAKE_LIBS_EGL += -lEGL
QMAKE_LIBS_OPENGL_ES2 += -lGLESv2 -lEGL -lGAL
QMAKE_LIBS_OPENVG += -lOpenVG -lEGL -lGAL

QMAKE_LFLAGS += -Wl,-rpath-link,$$[QT_SYSROOT]/usr/lib

IMX6_CFLAGS = -march=armv7-a -mfpu=neon -DLINUX=1 -DEGL_API_FB=1
IMX6_CFLAGS_RELEASE = -O2 $$IMX6_CFLAGS
QMAKE_CFLAGS_RELEASE += $$IMX6_CFLAGS_RELEASE
QMAKE_CXXFLAGS_RELEASE += $$IMX6_CFLAGS_RELEASE
QMAKE_CFLAGS_DEBUG += $$IMX6_CFLAGS
QMAKE_CXXFLAGS_DEBUG += $$IMX6_CFLAGS

include(../common/linux_arm_device_post.conf)

load(qt_config)

sierdzio

OK, in this case I think you can safely just omit that "-no-opengl" flag when calling configure. The board seems to have all you need to run OpenGL ES.

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I tried this below script. and it works ..
so can you tell me will i get any problem related to gui of QT?

./configure -v -opensource -confirm-license -no-pch -no-xcb -no-opengl -make libs -device imx6 -compile-examples -device-option CROSS_COMPILE=/opt/freescale/usr/local/gcc-4.6.2-glibc-2.13-linaro-multilib-2011.12/fsl-linaro-toolchain/bin/arm-fsl-linux-gnueabi- -sysroot /home/jigar/ltib_install/ltib/rootfs -no-gcc-sysroot -prefix /opt/qt5

sierdzio

[quote author="jigarchokshi" date="1392802673"]so can you tell me will i get any problem related to gui of QT?[/quote]

I don't understand this question, please rephrase or explain.

If it compiles, the situation is definitely looking good. Without OpenGL, you should be able to use all non-gui modules (core, network, XML, etc.), plus QtQuick1 and QtWidgets.

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but i need qtqui module also..
so now i must have configure with opengles2.0.
so now how can i add opengles2.0 in my sysroot?
i am using ltib as rootfs and in ltib opengles is not available.

sierdzio

QtGui itself is kind of a hard question: it does not depend on OpenGL as such, but might be required in some situations. You have said that the configuration and make stages were successful, so I think it is fine.

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I am following below link to cross compile qt 5.
https://community.freescale.com/docs/DOC-94066

But on step 8 i have a problem again because now i don’t have a “qtjsbackend” directory in my installed qt5 directory. :(

sierdzio

Do you want to use QtQuick1 (a deprecated module)? If no, then just skip it.

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okay... but i realize now that i must need qtQuick2 as i am developing gui and for that i must need opengles2...

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okay... but i realize now that i must need qtQuick2 as i am developing gui and for that i must need opengles2... so now i know that i can not condigure without opengles 2.0..

sierdzio

You can choose to use widgets, which should not require OpenGL. But QtQuick 2 is cool, too :) Your board does support it, so no worries.

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hie again back after long time..
as you suggested me to compile without gles 2.0 .. i did that and it was perfect..
i am following this link to cross compile qt 5.2.
https://community.freescale.com/docs/DOC-94066

now in step 8 as described there should be 2 directories.
qtjsbackend and qtdeclarative

because when i configure qt i used no opengles . so i am not getting qtjsbackend. that's fine. i am getting qtdeclarative directory.

When i tried to build that directory using ../qtbase/bin/qmake -r command.
I got error for qt-quick.
Project ERROR: Unknown module(s) in QT: quick-private

To solve this error i tried following solution

modify this file qtbase/bin/qt.conf and add the correct prefix, the one given on configure

[EffectivePaths]
Prefix=/opt/qt5

But still i got same error.
Thanks you.. :)

sierdzio

Some people say that this can be fixed by turning off tests and examples:
@
-nomake tests -nomake examples
@

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but whre should i write because i write this at configuration time and i got error like this...
~/qt5/qtbase$ ./configure -v -opensource -confirm-license -no-pch -no-xcb -no-opengl -make libs -device imx6 -compile-examples -device-option -nomake tests -nomake examples CROSS_COMPILE=/opt/freescale/usr/local/gcc-4.6.2-glibc-2.13-linaro-multilib-2011.12/fsl-linaro-toolchain/arm-fsl-linux-gnueabi/bin -sysroot /ltib_install/ltib/rootfs -no-gcc-sysroot -prefix /opt/qt5
tests: unknown argument
CROSS_COMPILE=/opt/freescale/usr/local/gcc-4.6.2-glibc-2.13-linaro-multilib-2011.12/fsl-linaro-toolchain/arm-fsl-linux-gnueabi/bin: unknown argument

sierdzio

[quote author="jigarchokshi" date="1393498528"]tests: unknown argument[/quote]

I have not seen that error before, and I am using this flag regularly. Possibly some other option is silently removing tests already, although that would be a bit strange. Remove the flag, then.

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so now how should i go ahead? any idea?