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c++qtlinkercmakeqmake

qmake to cmake conversion and link errors


I converted a project from qmake (Initially I used qt-creator to build it on mac/linux/win) to cmake and I get a lot of link errors.

For example:

Undefined symbols for architecture x86_64: "runion(QtRegion const&, QtRegion const&)", referenced from: Q3DView::ReloadLineData() in 3DView.cpp.o "pafrand(int)", referenced from:

My .pro file:

CONFIG += debug_and_release
QT            += core gui opengl
DEFINES       += _TEST1
TEMPLATE      = app
TARGET        = test
HEADERS       = xxx.h \
                xxxxxx.h \
                etc.h
    Libs/include/generic/xxxxxx.h

SOURCES       = xxxx.cpp \
                xxx.cpp \
                xxxx.cpp 

INCLUDEPATH   += Libs/include
INCLUDEPATH   += ../plugin/srv

RESOURCES     = resource.qrc

##### LINUX
unix:!macx:INCLUDEPATH += . /usr/local/include/boost  
unix:!macx:LIBS += -L/usr/local/lib
unix:!macx:LIBS += -lboost_system -lboost_thread
!win32:!macx: LIBS = -lGL -lGLU
########

#### MAC
macx:INCLUDEPATH += . /usr/local/include/boost
macx:LIBS += -L/usr/local/lib
macx:LIBS += -lboost_system-mt -lboost_thread-mt
macx:QMAKE_LFLAGS_RPATH += /usr/local/lib
####

QMAKE_CXXFLAGS_WARN_ON =

FORMS += \
    UI/xxx.ui \
    UI/xx.ui

And my version of the cmake file:

project( test )

cmake_minimum_required( VERSION 2.6 )

if(APPLE)
set(CMAKE_OSX_ARCHITECTURES x86_64)
ENDIF()

set ( CMAKE_BUILD_TYPE Debug )

add_definitions ( -Wall )

find_package ( Qt4 REQUIRED )

FIND_PACKAGE(Boost)
IF (Boost_FOUND)
    INCLUDE_DIRECTORIES(${Boost_INCLUDE_DIR})
    ADD_DEFINITIONS( "-DHAS_BOOST" )
ENDIF()

find_package(GLUT)
find_package(OpenGL)
IF(APPLE)
SET(CMAKE_CXX_LINK_FLAGS "-framework OpenGL -framework GLUT")
ENDIF(APPLE)

set ( test_HDRS
    xxxx.h
    xxxxxx.h
    xxxx.h
    )

set ( test_SRCS
    xxxxx.cpp
    xxx.cpp
    xxxxx.cpp
    )

set ( test_UIS
    UI/xx.ui
    UI/xxxx.ui
    )
QT4_WRAP_UI(UIS ${test_UIS})

set ( test_RSCS
    resource.qrc
    )

QT4_ADD_RESOURCES(RSCS ${test_RSCS})

QT4_WRAP_CPP(MOCS ${test_HDRS})

INCLUDE(${QT_USE_FILE})
ADD_DEFINITIONS(${QT_DEFINITIONS})

include_directories (
    ${CMAKE_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR}
    ${QT_QTCORE_INCLUDE_DIR} ${QT_QTGUI_INCLUDE_DIR} ${QT_QTCORE_INCLUDE_DIR} ${QT_QTGUI_INCLUDE_DIR} ${QT_QTOPENGL_INCLUDE_DIR}
    Libs/include
    /usr/local/include/boost
    ../plugin/srv)

link_directories (
        /usr/local/lib
    )

add_executable ( test ${test_SRCS} ${UIS} ${RSCS} ${TRS} ${MOCS} )

target_link_libraries ( test  ${QT_LIBRARIES} ${QT_QTCORE_LIBRARY} ${QT_QTGUI_LIBRARY} ${QT_QTCORE_LIBRARY} ${QT_QTGUI_LIBRARY} ${QT_QTOPENGL_LIBRARY} )

I tried many different things I found online but always the same problem. Any ideas? Thanks


Solution

  • You aren't linking -lqgis_core -lqgis_gui in your CMakeLists.txt. Add qgis_core and qgis_gui into target_link_libraries() call.