qmake-qt4      # make the Makefile from the chicagoQt.pro
make            # make the binary
make install    # cp binary to the Samples directory

PROJECT(QH)

CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
CMAKE_POLICY(VERSION 2.6)
# Debug, all warnings.
ADD_DEFINITIONS(-g -Wall)
# Find Qt4.
INCLUDE(FindQt4)
FIND_PACKAGE(Qt4 REQUIRED)
SET(QT_USE_QTOPENGL TRUE)
INCLUDE(${QT_USE_FILE})
INCLUDE_DIRECTORIES(${QT_INCLUDES}
                    /usr/local/include
                    /usr/include)
# Headers with Q_OBJECT macro.
SET(
    QH_MOC_HDR
    GLWidget.h
)
QT4_WRAP_CPP(QH_MOC_SRC ${QH_MOC_HDR})
# Sources.
SET(
    QH_SRC
    GLWidget.cpp
    main.cpp
)
ADD_EXECUTABLE(test ${QH_MOC_SRC} ${QH_SRC})
TARGET_LINK_LIBRARIES(test ${QT_LIBRARIES} Horde3D Horde3DUtils)

#include "GLWidget.h"
#include <stdexcept>

GLWidget::GLWidget() : QGLWidget() {

}

GLWidget::~GLWidget() {

}

void GLWidget::initializeGL() {
    if (!h3dInit()) {
        h3dutDumpMessages();
        throw std::runtime_error("Could not initialize renderer");
    }
}

#ifndef GL_WIDGET_H
#define GL_WIDGET_H

#include <QtOpenGL>
#include <horde3d/Horde3D.h>
#include <horde3d/Horde3DUtils.h>

class GLWidget : public QGLWidget {
    Q_OBJECT
    public:
        GLWidget();
        ~GLWidget();

        QSize minimumSizeHint() const {
            return QSize(640, 480);
        }
        QSize sizeHint() const {
            return QSize(640, 480);
        }

    protected:
        void initializeGL();
};

#endif // GL_WIDGET_H

#include "GLWidget.h"
#include <QApplication>

int main(int argc, char* argv[]) {
    QApplication app(argc, argv);
    GLWidget glw;
    glw.show();
    return app.exec();
}

(gdb) run
Starting program: /home/kornerr/build/qh/test
[Thread debugging using libthread_db enabled]
[New Thread 0x7f563eadc790 (LWP 8774)]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7f563eadc790 (LWP 8774)]
0x00007f563e4d0c80 in glCreateShader () from /usr/lib64/libGL.so.1
(gdb) bt
#0  0x00007f563e4d0c80 in glCreateShader () from /usr/lib64/libGL.so.1
#1  0x00007f563b546270 in RendererBase::loadShader (this=0x72c3f0,
    vertexShader=0x7f563b59bb38 "uniform mat4 worldMat;\nattribute vec3 vertPos;\nvoid main() {\n\tgl_Position = gl_ModelViewProjectionMatrix * worldMat * vec4( vertPos, 1.0 );\n}\n",
    fragmentShader=0x7f563b59bbc8 "uniform vec4 color;\nvoid main() {\n\tgl_FragColor = color;\n}\n")
    at /home/kornerr/build/horde3d/trunk/Horde3D/Source/Horde3DEngine/egRendererBase.cpp:441
#2  0x00007f563b546669 in RendererBase::createShader (this=0x72c3f0,
    vertexShader=0x7f563b59bb38 "uniform mat4 worldMat;\nattribute vec3 vertPos;\nvoid main() {\n\tgl_Position = gl_ModelViewProjectionMatrix * worldMat * vec4( vertPos, 1.0 );\n}\n",
    fragmentShader=0x7f563b59bbc8 "uniform vec4 color;\nvoid main() {\n\tgl_FragColor = color;\n}\n")
    at /home/kornerr/build/horde3d/trunk/Horde3D/Source/Horde3DEngine/egRendererBase.cpp:522
#3  0x00007f563b55715f in Renderer::createShaderComb (this=0x72c3f0,
    vertexShader=0x7f563b59bb38 "uniform mat4 worldMat;\nattribute vec3 vertPos;\nvoid main() {\n\tgl_Position = gl_ModelViewProjectionMatrix * worldMat * vec4( vertPos, 1.0 );\n}\n",
    fragmentShader=0x7f563b59bbc8 "uniform vec4 color;\nvoid main() {\n\tgl_FragColor = color;\n}\n", sc=@0x72c770)
    at /home/kornerr/build/horde3d/trunk/Horde3D/Source/Horde3DEngine/egRenderer.cpp:235
#4  0x00007f563b557887 in Renderer::init (this=0x72c3f0)
---Type <return> to continue, or q <return> to quit---
    at /home/kornerr/build/horde3d/trunk/Horde3D/Source/Horde3DEngine/egRenderer.cpp:129
#5  0x00007f563b52f322 in Modules::init ()
    at /home/kornerr/build/horde3d/trunk/Horde3D/Source/Horde3DEngine/egModules.cpp:75
#6  0x00007f563b51ed1c in h3dInit ()
    at /home/kornerr/build/horde3d/trunk/Horde3D/Source/Horde3DEngine/egMain.cpp:94
#7  0x0000000000403114 in GLWidget::initializeGL (this=0x7fffd4e9c580)
    at /home/kornerr/cpp/qt/horde3d/GLWidget.cpp:14
#8  0x00007f563e78beb4 in QGLWidget::glInit ()
   from /usr/lib64/qt/lib/libQtOpenGL.so.4
#9  0x00007f563e7bf99c in QGLWidget::resizeEvent ()
   from /usr/lib64/qt/lib/libQtOpenGL.so.4
#10 0x00007f563d8e1f9a in QWidget::event ()
   from /usr/lib64/qt/lib/libQtGui.so.4
#11 0x00007f563e78efa1 in QGLWidget::event ()
   from /usr/lib64/qt/lib/libQtOpenGL.so.4
#12 0x00007f563d890efd in QApplicationPrivate::notify_helper ()
   from /usr/lib64/qt/lib/libQtGui.so.4
#13 0x00007f563d89917a in QApplication::notify ()
   from /usr/lib64/qt/lib/libQtGui.so.4
#14 0x00007f563c167afc in QCoreApplication::notifyInternal ()
   from /usr/lib64/qt/lib/libQtCore.so.4
#15 0x00007f563d8e09b3 in QWidgetPrivate::sendPendingMoveAndResizeEvents ()
   from /usr/lib64/qt/lib/libQtGui.so.4
---Type <return> to continue, or q <return> to quit---
#16 0x00007f563d8e6e53 in QWidgetPrivate::show_helper ()
   from /usr/lib64/qt/lib/libQtGui.so.4
#17 0x00007f563d8e751a in QWidget::setVisible ()
   from /usr/lib64/qt/lib/libQtGui.so.4
#18 0x000000000040348b in QWidget::show (this=0x7fffd4e9c580)
    at /usr/lib64/qt/include/QtGui/qwidget.h:473
#19 0x00000000004033ee in main (argc=1, argv=0x7fffd4e9c6a8)
    at /home/kornerr/cpp/qt/horde3d/main.cpp:8

void GLWidget::initializeGL() {
    std::cout << "abc\n";
    std::cout << glCreateShader(GL_FRAGMENT_SHADER);
    std::cout << "abc\n";
    std::cout << glCreateShader(GL_VERTEX_SHADER);
    std::cout << "abc\n";
    if (!h3dInit()) {
        h3dutDumpMessages();
        throw std::runtime_error("Could not initialize renderer");
    }
}