用Qt5编译的Qt3D失败了

Question

I'm having troubles compiling Qt3D on Windows. The module compiles and links properly on my Linux machine with Qt 4.8.1. Though on Windows (Qt 5.2 personal build) g++ says <Qt3D/qt3dglobal.h> header is not found.

I've compiled qt3d on linux with following these steps:

1. Download a tarball of branch qt4 from here , extract it.
2. qmake CONFIG+=package
3. make -j4
4. sudo make install

And for Windows (Qt 5.2 gcc-4.8.1 personal build):

1. Download tarball of master branch from here , extract it
2. qmake
3. make // => error: missing headers

What I'm missing?

Note: ActiveState Perl is in PATH

Answer 1

I was able to reproduce this error - I guess its a bug as Qt3D used to build like this. But the Qt folks are probably used to building Qt3D as part of the modular Qt build . My guess is that some part of the qmake step which is meant to set up the header paths is not working on Windows.

I got it to build by copying the headers manually:

# in git bash
mkdir Qt3D
find qt-qt3d/ -name "*.h" -exec cp \{} Qt3D/. \;
mkdir qt-qt3d/include
mv Qt3D qt-qt3d/include/.

Then:

# in VS2012 shell
set PATH=%PATH%;%HOMEPATH%\build\qt5\bin
mkdir qt3d_build
cd qt3d_build
qmake ..\qt-qt3d\qt3d.pro
nmake

Here Qt and qt-qt3d were in the current directory (in qt5 and qt-qt3d respectively) and Qt was built from source already.