Cross-compile Qwt project to ARM on Windows

[schlett_tamas]

Firstly, i will try to disable the CONFIG += silent in qwtbuild.pri, thanks for the advice.

But theoretically, if i can tell for the armeabi compiler the locaton of the qwt headers, that should be work??

I ask that because i compiled the qwt with mingw and i got .dll-s in the qwt6.1.1\lib, so under unix based os's cant handle theese kind of files so maybe thats why armeabi cant see the headers.

Maybe i should compile qwt under linux and get the .so files and copy that to windows, and after that under windows i should link that .so files to armaebi compiler?

Note that qmake projects files for building Qwt examples are different from what you would do, when building an usual application using Qwt. Here you would have to install Qwt properly ( make install ) first and add a "CONFIG += qwt" to the application project file ( see http://qwt.sourceforge.net/qwtinstall.html )

I did it, under windows with mingw compiler, it works, i can make own projects with qwt diagrams.

It would be nice to have a small HOWTO for using Qwt on Android - at least if there is something special to take care of. Maybe you can help here ?

Of course if i can make it work.

[Uwe]

But theoretically, if i can tell for the armeabi compiler the locaton of the qwt headers, that should be work??

Of course - setting this path is done in the project files of the examples and is part of what you include with "CONFIG += qwt". As you have disabled the silent mode now you should be able to see what path gets added when looking at the commands used for compiling.

I ask that because i compiled the qwt with mingw and i got .dll-s in the qwt6.1.1\lib, so under unix based os's cant handle theese kind of files so maybe thats why armeabi cant see the headers.

No for compiling you don't need any dll's ( those are for linking ), so this can't be the issue. But of course there shouldn't be any dlls when cross compiling - if you have them your build of Qwt is not a cross compiled one.

Maybe i should compile qwt under linux and get the .so files and copy that to windows, and after that under windows i should link that .so files to armaebi compiler?

No all you need to do is to do a "qmake -spec xxx qwt.pro", where xxx is the spec file with all the settings for the target device ( the same specs you have used for cross compiling your standalone application ).

Uwe