CODEWITHSUNDEEP
c++cmake
vsoftco
vsoftco

Reputation: 56567

How to produce a list of executables as a separate cmake target

I tried my best to add a custom cmake target that compiles a list of .cpp files from a specific folder, and produces an executable for each file, with no success. Basically my scenario is as following:

foreach (FILE ${EXAMPLE_FILES})
    add_executable(${TARGET_NAME} ${FILE})
endforeach ()

Currently, when I type cmake .. && make, everything works fine, all those example files from the list ${EXAMPLE_FILES} are compiled, and an executable produced for each. However, I'd like to remove this from the make all target, i.e., I'd like to produce those executables only when I type e.g. make examples. Any idea how to achieve this?

Upvotes: 0

Views: 853

Answers (1)

Tsyvarev
Tsyvarev

Reputation: 66061

By adding EXCLUDE_FROM_ALL keyword to add_executable call, the building of the executable will be excluded from make all. For make a single target to create multiple executables just make this target dependent from these executables.

# Create the custom target before loop.
add_custom_target(examples)

foreach (FILE ${EXAMPLE_FILES})
    # Every executable target should have unique name.
    # E.g. if every example source is given in form '<name>.c'
    # Then we could use '<name>' as the executable target
    string(REPLACE ".c" "" TARGET_NAME "${FILE}")
    # Create an executable
    add_executable({$TARGET_NAME} EXCLUDE_FROM_ALL ${FILE})
    # And make 'examples' to depend from that executable
    add_dependencies(examples ${TARGET_NAME})
endforeach ()

Upvotes: 1

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