CMake: Linking multiple libraries to two executables in one command

Question

I've got two executables both of which need to be linked to N libraries which are the same:

add_executable(MyExe1 main1.cpp) add_executable(MyExe2 main2.cpp) target_link_libraries(MyExe1 lib1 lib2 lib3 ... libN) target_link_libraries(MyExe2 lib1 lib2 lib3 ... libN)

So I have to write target_link_libraries twice; once for MyExe1 and once for MyExe2. Is there any way to shorten the way some common libraries are linked to two different executables? I am wondering if it's possible to link lib1 ... libN libraries to both MyExe1 and MyExe2 in one command to avoid redundancy and make the CMake file cleaner.

Oskar N. · Accepted Answer · 2013-02-12 11:11:32Z

15

You can use the set command to set a variable from a list of arguments:

add_executable(MyExe1 main1.cpp) add_executable(MyExe2 main2.cpp) set(LIBS lib1 lib2 lib3 ... libN) target_link_libraries(MyExe1 ${LIBS}) target_link_libraries(MyExe2 ${LIBS})

answered Feb 12, 2013 at 11:11

Oskar N.

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2 Comments

James Moore Over a year ago

Is there a way to create a cmake pseudo-library that lets you do define lib1AndLib2 so you could use it in something like "target_link_libraries(MyExe1 lib1AndLib2)"?

Arthur Tacca Over a year ago

@JamesMoore Yes, it is called an interface library, and you create it with add_library(MyInterfaceLibName INTERFACE).

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