Project ERROR: Unknown module(s) in QT: opengl

[saurabh162]

Dear Developers,

I have tried to compile "qwt-6.1.4" code using qmake as shown below

sudo /opt/Qt5_7_1/qt571-bbbhf/bin/qmake qwt.pro

sudo /opt/Qt5_7_1/qt571-bbbhf/bin/qmake qwt.pro

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and then gave

sudo make

sudo make

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command.

After giving make command I got following error:

cd src/ && ( test -e Makefile || /opt/Qt5_7_1/qt571-bbbhf/bin/qmake /usr/local/qwt-6.1.4/src/src.pro -o Makefile ) && make -f Makefile 
Project ERROR: Unknown module(s) in QT: opengl
Makefile:45: recipe for target 'sub-src-make_first-ordered' failed
make: *** [sub-src-make_first-ordered] Error 3

cd src/ && ( test -e Makefile || /opt/Qt5_7_1/qt571-bbbhf/bin/qmake /usr/local/qwt-6.1.4/src/src.pro -o Makefile ) && make -f Makefile 
Project ERROR: Unknown module(s) in QT: opengl
Makefile:45: recipe for target 'sub-src-make_first-ordered' failed
make: *** [sub-src-make_first-ordered] Error 3

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I would be grateful to you if you please exaplain me how can I solve error given above. please inform me if you need any other information from me.


Thanks and regards

Saurabh Jain

[Uwe]

You are trying to build Qwt with OpenGL support, while your Qt build had been built without.
Actually this is a situation the Qwt project files could autodetect, but for the moment you have to resolve it on your side by:

• building Qt with OpenGL support
• or disabling OpenGL for Qwt in qwtconfig.pri

Uwe

[saurabh162]

Thank you very much uwe it has helped me . As I do not have any knowledge of OpenGl and new to QWT. I would be grateful to you if you please inform me whether I can make 2D line graphs from data obtained from sensors without using OpenGL ? ..Many thanks

[Uwe]

I would be grateful to you if you please inform me whether I can make 2D line graphs from data obtained from sensors without using OpenGL ?

Sure, this is the default setup.

Uwe

[saurabh162]

Thank you very much Uwe for your help