Cmake和QT5 - Include只有一个参数 [英] Cmake and QT5 - Include only takes one argument

问题描述

来自此主题：
Ubuntu CMake要添加到CMAKE_MODULE_PATH的路径

我试图在我的项目中运行QT5，因为QT4不允许我包括QWebView。

I try to get QT5 in my project running, as QT4 does not allow me to include QWebView.

按照上述主题中的指南，我现在有一个CMakeList.txt：

Following the guides from the mentioned topics I now have a CMakeList.txt:

cmake_minimum_required (VERSION 2.6 FATAL_ERROR)
project (simpleTree)
find_package(Qt5 REQUIRED COMPONENTS Widgets Core) 
find_package (VTK REQUIRED)
find_package (PCL 1.8.0 REQUIRED)

include_directories (${PCL_INCLUDE_DIRS})
link_directories (${PCL_LIBRARY_DIRS})
add_definitions (${PCL_DEFINITIONS})

set (project_SOURCES export/exportply.cpp export/writecsv.cpp main.cpp
         controller.cpp 
         gui/pclviewer.cpp
         import/importpcd.cpp 
         method/SphereFollowing.cpp 
         Model/crown.cpp 
         Model/Cylinder.cpp 
         Model/Segment.cpp 
         Model/Tree.cpp)
set (project_HEADERS controller.h 
         export/writecsv.h
         export/exportply.h
         gui/pclviewer.h
         import/importpcd.h 
         method/SphereFollowing.h 
         Model/crown.h 
         Model/Cylinder.h 
         Model/Segment.h 
         Model/Tree.h)
set (project_FORMS   gui/pclviewer.ui)
set (VTK_LIBRARIES vtkRendering vtkGraphics vtkHybrid QVTK)

QT5_WRAP_CPP (project_HEADERS_MOC   ${project_HEADERS})
QT5_WRAP_UI  (project_FORMS_HEADERS ${project_FORMS})

INCLUDE (${QT_USE_FILE})
ADD_DEFINITIONS (${QT_DEFINITIONS})
ADD_EXECUTABLE (simpleTree ${project_SOURCES}
               ${project_FORMS_HEADERS}
               ${project_HEADERS_MOC})

TARGET_LINK_LIBRARIES (simpleTree ${QT_LIBRARIES} ${PCL_LIBRARIES}       ${VTK_LIBRARIES})

我在将QT4线切换到QT5后收到以下错误： p>

I get the following error, after switching QT4 lines to QT5:

CMake Error at CMakeLists.txt:36 (INCLUDE):
include called with wrong number of arguments.  Include only takes one
file.

这告诉我，变量QT_USE_FILE现在是一个列表，不确定这是否正确，不确定我可以做什么。

So this tells me that the variable QT_USE_FILE is now a list, which it was not before. Not sure if this is right, and not sure what I can do.

感谢
Jan

Thanks Jan

推荐答案

CMake Error at CMakeLists.txt:36 (INCLUDE):
include called with wrong number of arguments.  Include only takes one
file.

这意味着变量 QT_USE_FILE 为空。

在CMake中使用Qt5，你应该使用 qt5_use_modules ，而不是 QT_USE_FILE 和 QT_LIBRARIES 。

In CMake with Qt5 you should use macro qt5_use_modules instead of QT_USE_FILE and QT_LIBRARIES.

所以在你的 CMakeLists.txt 中你需要删除行：

INCLUDE（$ {QT_USE_FILE} ）

更改行：

TARGET_LINK_LIBRARIES（simpleTree $ {QT_LIBRARIES} $ {PCL_LIBRARIES} $ {VTK_LIBRARIES}）

：

TARGET_LINK_LIBRARIES（simpleTree $ {PCL_LIBRARIES} $ {VTK_LIBRARIES}）

并添加行：

qt5_use_modules（simpleTree Widgets）

So in your CMakeLists.txt you need to remove line:
INCLUDE (${QT_USE_FILE})
change line:
TARGET_LINK_LIBRARIES (simpleTree ${QT_LIBRARIES} ${PCL_LIBRARIES} ${VTK_LIBRARIES})
on the:
TARGET_LINK_LIBRARIES (simpleTree ${PCL_LIBRARIES} ${VTK_LIBRARIES})
and add line:
qt5_use_modules (simpleTree Widgets)

UPD ：

现在使用 qt5_use_modules 已弃用， target_link_libraries simpleTree Qt5 :: Widgets （请参阅此答案）。

UPD:
For now using qt5_use_modules is deprecated and target_link_libraries simpleTree Qt5::Widgets should be used instead (see also this answer).

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