SubdirProject source code tree.

barlib.cpp

#include "barlib.h"


BarLib::BarLib()
{
}

barlib.h

#ifndef BARLIB_H
#define BARLIB_H

#include "barlib_global.h"

class BARLIBSHARED_EXPORT BarLib
{

public:
    BarLib();
};

#endif // BARLIB_H

Barlib.pro

#-------------------------------------------------
#
# Project created by QtCreator 2017-11-21T15:35:06
#
#-------------------------------------------------

QT       -= gui

TARGET = BarLib
TEMPLATE = lib

DEFINES += BARLIB_LIBRARY

# The following define makes your compiler emit warnings if you use
# any feature of Qt which has been marked as deprecated (the exact warnings
# depend on your compiler). Please consult the documentation of the
# deprecated API in order to know how to port your code away from it.
DEFINES += QT_DEPRECATED_WARNINGS

# You can also make your code fail to compile if you use deprecated APIs.
# In order to do so, uncomment the following line.
# You can also select to disable deprecated APIs only up to a certain version of Qt.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0

SOURCES += \
        barlib.cpp

HEADERS += \
        barlib.h \
        barlib_global.h 

unix {
    target.path = /usr/lib
    INSTALLS += target
}

release: DESTDIR = build/release
debug:   DESTDIR = build/debug

OBJECTS_DIR = $$DESTDIR/.obj
MOC_DIR = $$DESTDIR/.moc
RCC_DIR = $$DESTDIR/.qrc
UI_DIR = $$DESTDIR/.ui

barlib_global.h

#ifndef BARLIB_GLOBAL_H
#define BARLIB_GLOBAL_H

#include <QtCore/qglobal.h>

#if defined(BARLIB_LIBRARY)
#  define BARLIBSHARED_EXPORT Q_DECL_EXPORT
#else
#  define BARLIBSHARED_EXPORT Q_DECL_IMPORT
#endif

#endif // BARLIB_GLOBAL_H

FooApp.pro

QT -= gui

CONFIG += c++11 console
CONFIG -= app_bundle

# The following define makes your compiler emit warnings if you use
# any feature of Qt which as been marked deprecated (the exact warnings
# depend on your compiler). Please consult the documentation of the
# deprecated API in order to know how to port your code away from it.
DEFINES += QT_DEPRECATED_WARNINGS

# You can also make your code fail to compile if you use deprecated APIs.
# In order to do so, uncomment the following line.
# You can also select to disable deprecated APIs only up to a certain version of Qt.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0

SOURCES += main.cpp

release: DESTDIR = build/release
debug:   DESTDIR = build/debug

OBJECTS_DIR = $$DESTDIR/.obj
MOC_DIR = $$DESTDIR/.moc
RCC_DIR = $$DESTDIR/.qrc
UI_DIR = $$DESTDIR/.ui

main.cpp

#include <QCoreApplication>

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);

    return a.exec();
}

SubdirProject.pro

TEMPLATE = subdirs

SUBDIRS += \
    BarLib \
    FooApp

CONFIG += ordered