Can one add further source files to an executable once defined?

问题

Given I have defined an executable with its main source file in a CMakeList.txt file:

ADD_EXECUTABLE(MyExampleApp main.cpp)

Can I add further source files to this executable after this line but in the same or an included CMakeList.txt file?

回答1:

Use target_sources, available since cmake 3.1

eg. target_sources(MyExampleApp PRIVATE ${extra_file})

https://cmake.org/cmake/help/v3.1/command/target_sources.html

回答2:

I think you may use:

add_executable(MyExampleApp main.cpp)
add_library(library STATIC ${ADDITIONAL_SOURCES})
set_target_properties(library PROPERTIES
     LIBRARY_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
target_link_libraries(MyExampleApp library)

回答3:

It should be noted that for more recent versions of CMake (> 3.1 I think) one can append files to the SOURCES property on targets.

http://www.cmake.org/cmake/help/v3.3/prop_tgt/SOURCES.html

来源：https://stackoverflow.com/questions/9339851/can-one-add-further-source-files-to-an-executable-once-defined