In this section it will be presented the code and the build instructions for a very simple Qt4 based library. It will be used as the subject for this tutorial.
There is only one class on this foo library plus a .pro file which means that the build system used will be qmake based.
Put the files below in a directory called libfoo. Be aware that this directory will be referred by the binding Makefile presented in a next section of this tutorial. If you want to use other names or paths change the binding Makefile accordingly. Blind copy’n’paste shortens your life.
libfoo/foo.h
#ifndef FOO_H
#define FOO_H
#include <QtCore/QtCore>
class Math : public QObject
{
Q_OBJECT
public:
Math() {}
virtual ~Math() {}
int squared(int x);
};
#endif // FOO_H
libfoo/foo.cpp
#include "foo.h"
int Math::squared(int x)
{
return x * x;
}
libfoo/foo.pro
TEMPLATE = lib
TARGET = foo
DEPENDPATH += .
INCLUDEPATH += .
HEADERS += foo.h
SOURCES += foo.cpp
To build the lib:
$ cd libfoo
$ qmake
$ make