About the UWE way to install qwt

[Uwe]

Look at some of the .pro files for the Qwt examples, ...

I would also recommend to look at qwt.prf. The internal project files are intended for building the examples only and are very different from what you have to do for building an application against an installed Qwt version.

When properly installed you will find the following qwt.prf in /root/to/qwt/features:

include ( ./qwtconfig.pri )
 
contains(QWT_CONFIG, QwtDll) {
 
    DEFINES *= QWT_DLL
}
 
contains(QWT_CONFIG, QwtSvg) {
 
    QT      *= svg
}
else {
 
    DEFINES *= QWT_NO_SVG
}
 
contains(QWT_CONFIG, QwtFramework) {
 
    INCLUDEPATH *= $${QWT_INSTALL_LIBS}/qwt.framework/Headers
    LIBS        *= -F$${QWT_INSTALL_LIBS}
}
else {
 
    INCLUDEPATH *= $${QWT_INSTALL_HEADERS}
    LIBS        *= -L$${QWT_INSTALL_LIBS}
}
 
INCLUDEPATH_QWT = $${INCLUDEPATH}
qtAddLibrary(qwt)
 
# we don't want qtAddLibrary to expand the 
# include path, with directories, that might
# conflict with other installations of qwt
 
INCLUDEPATH      = $${INCLUDEPATH_QWT}

include ( ./qwtconfig.pri )

contains(QWT_CONFIG, QwtDll) {

    DEFINES *= QWT_DLL
}

contains(QWT_CONFIG, QwtSvg) {

    QT      *= svg
}
else {

    DEFINES *= QWT_NO_SVG
}

contains(QWT_CONFIG, QwtFramework) {

    INCLUDEPATH *= $${QWT_INSTALL_LIBS}/qwt.framework/Headers
    LIBS        *= -F$${QWT_INSTALL_LIBS}
}
else {

    INCLUDEPATH *= $${QWT_INSTALL_HEADERS}
    LIBS        *= -L$${QWT_INSTALL_LIBS}
}

INCLUDEPATH_QWT = $${INCLUDEPATH}
qtAddLibrary(qwt)

# we don't want qtAddLibrary to expand the 
# include path, with directories, that might
# conflict with other installations of qwt

INCLUDEPATH      = $${INCLUDEPATH_QWT}

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"CONFIG += qwt" is only a different way for writing "include ( /root/to/qwt/features/qwt.prf )". Note that qwtconfig.pri is also installed and read by qwt.prf - so that the configuration how Qwt had been built is available in your application project file !

Uwe

[21did21]

sorry but i have some difficulties to understand, can you explain to me the step since the beginning with adding or correct my list bellow ?


1°) Unzip Qwt to "C:\Qt\qwt-6.0.0"
2°) open Qt command line "QT 4.7.3 for desckop (MinGW)"
3°) qmake qwt.pro
4°) mingw32-make
5°) mingw32-make install
6°) qmake -set QMAKEFEATURES "C:/Qt/qwt-6.0.0/features"
7°) add "CONFIG += qwt" in my project .pro
8°) in my Qt project i run "Compiler->execute Qmake"
9°) and i compil my project
10°) add something in .pro ? (where is this file?)
10°) add something in .pri ? (where is this file?)
10°) add something in .prf ? (this file is here : C:/QtSDK/qwt6-0-0/features ?)

because i don't understand when, why and how we i have to modify something in .pro / .pri / .prf ...

[wysota]

If the installation was as simple as running those several points you have mentioned, there would be a working script provided for you. If the suggested way of installing Qwt doesn't work for you then repeating those several bullets in your post will not help you in any way. The recommended path if something doesn't work in QtCreator is to open command line, set all the paths manually, run qmake manually and then manually run make and watch for errors. If you want to be a programmer, you have to be able to do those steps on your own. We can help you with getting to proper conclusions but the main part of the work belongs to you. If you don't know what is going on behind those several lines of instructions you posted, then please spend two-three hours on learning your toolchain. The error is in your .pro file so you have to understand it and be able to perform simple tasks on it (like including some file in it or setting variables to proper values).

[21did21]

i will try to understand, i thank that the installation is easy so i thank that i have miss a step...

see you and thanks all