Ubuntu 13.04 CMake和Qt4和Qt5

我正在使用新的Ubuntu 13.04，并通过apt get install安装了qt。看来qt5现在已经安装好了。使用qt5的CMake项目运行良好

我在ubuntu 12.04上安装了qt4的机器上运行了相同的代码，并且运行良好。但是现在我得到了以下错误：（不要担心boost的东西，它来自一个父CMakeLists.txt）

这是我的

CMakeLists.txt

。有人知道如何在新的ubuntu上同时使用qt4和qt5吗？提前谢谢

FILE(GLOB COLLECTED_HDR_FILES *.hpp)
FILE(GLOB COLLECTED_SRC_FILES *.cpp)
FILE(GLOB COLLECTED_UI_FILES *.ui)
FILE(GLOB COLLECTED_RCS_FILES *.qrc)

SET( SRCS
${COLLECTED_SRC_FILES}
)

SET( HDRS
${COLLECTED_HDR_FILES}
)

SET( MOC_HDRS
${HDRS}
)

SET( UIS
${COLLECTED_UI_FILES}
)

SET( RCS
${COLLECTED_UI_FILES}
MainWindow.qrc
)

# enable warnings
ADD_DEFINITIONS(-Wall)

# this command finds Qt4 libraries and sets all required variables
# note that it's Qt4, not QT4 or qt4
FIND_PACKAGE(Qt4 REQUIRED)
FIND_PACKAGE(OpenGL REQUIRED)

# by default only QtCore and QtGui modules are enabled
# other modules must be enabled like this:
SET(QT_USE_QTXML TRUE)
SET(QT_USE_QTOPENGL TRUE)

# add some useful macros and variables
# (QT_USE_FILE is a variable defined by FIND_PACKAGE( Qt4 ) that contains a path to CMake script)
INCLUDE( ${QT_USE_FILE} )

# this command will generate rules that will run rcc on all files from SAMPLE_RCS
# in result SAMPLE_RC_SRCS variable will contain paths to files produced by rcc
QT4_ADD_RESOURCES( RC_SRCS ${RCS} )

# this will run uic on .ui files:
QT4_WRAP_UI( UI_HDRS ${UIS} )

# and finally this will run moc:
QT4_WRAP_CPP( MOC_SRCS ${MOC_HDRS} ${UI_HDRS} )

# we need this to be able to include headers produced by uic in our code
# (CMAKE_BINARY_DIR holds a path to the build directory, while INCLUDE_DIRECTORIES() works just like INCLUDEPATH from qmake)
INCLUDE_DIRECTORIES( ${CMAKE_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR} ${OPENGL_INCLUDE_DIR})

# here we instruct CMake to build executable from all of the source files
ADD_EXECUTABLE( LevelEditor ${HDRS} ${SRCS} ${MOC_SRCS} ${RC_SRCS} ${UI_HDRS} )

# last thing we have to do is to tell CMake what libraries our executable needs,
# luckily FIND_PACKAGE prepared QT_LIBRARIES variable for us:
TARGET_LINK_LIBRARIES( LevelEditor ${QT_LIBRARIES} ${OPENGL_LIBRARIES})

---

将qt5添加到CMakeLists.txt与qt4不同，您可以找到许多有用的链接，例如，顺便说一句，我的ubuntu版本是12.04，我安装的qt没有apt get，我使用此格式在我的CMakeLists.txt中查找qt：

find_package(Qt5Widgets)

include_directories(${Qt5Widgets_INCLUDES}
/opt/Qt5.0.2/5.0.2/gcc/include/QtGui
/opt/Qt5.0.2/5.0.2/gcc/include/QtCore
/opt/Qt5.0.2/5.0.2/gcc/include/QtNetwork
/opt/Qt5.0.2/5.0.2/gcc/include/QtWidgets
/opt/Qt5.0.2/5.0.2/gcc/include/QtWebKit
/opt/Qt5.0.5/5.0.5/gcc/include/QtScript
)

add_definitions(${Qt5Widgets_DEFINITIONS})

set(CMAKE_CXX_FLAGS "${Qt5Widgets_EXECUTABLE_COMPILE_FLAGS} -I/opt/Qt5.0.2/5.0.2`    /gcc/include -L/opt/Qt5.0.2/5.0.2/gcc/lib -DQT5")`

您应该将头文件的地址替换为“我的地址”，还应该以以下方式使用目标链接库：

target_link_libraries(LevelEditor ${OPENGL_LIBRARIES} ${Qt5Widgets_LIBRARIES})

---

OP问到Qt5是通过Ubuntu中的apt get安装的，不是手工安装的。这里的include_目录片段很奇怪。现在请参阅哪些文档查找和使用Qt4和Qt5。在CMake 3.0之前，您可能会遇到冲突。

target_link_libraries(LevelEditor ${OPENGL_LIBRARIES} ${Qt5Widgets_LIBRARIES})