如何使用现有的 QMake 项目(.pro 项目文件)作为 CMake 中的"external project"？

Question

是否有一个简洁的文档或例子，如何使用现有的QMake项目与。pro项目文件作为"外部项目"在CMake?这可以在qtcreator中通过将一个项目标记为另一个项目的依赖来完成，但是使用ExternalProject() CMake语法更显式地定义它会更好。

相关问题:CMake:如何构建外部项目并包含它们的目标

Answer 1

这样就可以了。然后你可以在主CMake项目树的qtcreator中编辑文件，或从打开.pro文件;非常适合在SomeGarbageApplication中快速迭代QT小部件，这是大型cmake构建树的一部分。

macro(DeclareProjectFiles  Tag  Filez)
######### Trick: use this syntax to make arbitrary files
#########             appear in IDE project. #######################
### Note: pass in the raw name of a list variable,
###   since it will get expanded here in this macro.
  add_custom_target(${Tag}_files  ALL
                    pwd
                    COMMAND ls -ltrh
                    COMMENT  " ${Tag} files thunk... got list: [ ${${Filez}} ]"
                    VERBATIM
                    SOURCES  ${${Filez}}
                   )    
endmacro()
    message(STATUS "QT_QMAKE_EXE is:  ${QT_QMAKE_EXECUTABLE}")
set(Z  SomeGarbageApplication)
file(GLOB  ${Z}_Files
            ./*.cpp
            ./*.h
            ./*.ui
            ./*.pro
            ./*.png
            ./*.jpg)
DeclareProjectFiles( ${Z}_grbg  ${Z}_Files )
add_custom_target(${Z}_pro  ALL)
set(ExtraQMakeArgs  -r -spec linux-g++ CONFIG+=release)
# note: use killall because this can/will fail if the exe is running
#       But, need || true to not fail build when it's not running. 
add_custom_command(TARGET  ${Z}_pro
                   COMMAND  killall
                   ARGS     -q -9 -v ${Z} || true
                   COMMAND  ${QT_QMAKE_EXECUTABLE}
                   ARGS     -query
                   COMMAND  ${QT_QMAKE_EXECUTABLE}
                   ARGS     ${CMAKE_CURRENT_SOURCE_DIR}/${Z}.pro ${ExtraQMakeArgs}
                   COMMAND  make  ${Z}
                   ARGS     -j4
                   COMMAND  cp
                   ARGS     ${Z} ${CMAKE_CURRENT_SOURCE_DIR}/${${Z}_config}  ${CMAKE_BINARY_DIR}/bin/
                   WORKING_DIRECTORY  ${CMAKE_CURRENT_BINARY_DIR}
                   VERBATIM
                   )    
#################################################################