source: psi/trunk/src/tools/zip/zip.pri

zip {
        HEADERS += \
                $$ZIP_CPP/zip.h

        SOURCES += \
                $$ZIP_CPP/zip.cpp \
                $$ZIP_CPP/minizip/unzip.c

        win32: {
                INCLUDEPATH += $$ZIP_CPP/minizip/win32
                LIBS += $$ZIP_CPP/minizip/win32/libz.a
        }
        os2: {
                INCLUDEPATH += $$ZIP_CPP/minizip/win32
        }
        mac: {
                QMAKE_LFLAGS += -lz
        }
}