[CMake] Creating a library

[David Doria]

If I have many executables in the same project (ie same CMakeLists.txt
file), it seems like I shouldn't have to do this:

set(Sources File1.cpp File1.cpp )

ADD_EXECUTABLE(Test1 Test1.cpp ${Sources})

ADD_EXECUTABLE(Test2 Test2.cpp ${Sources})

because it is compiling File1 and File2 twice when that is unnecessary.

So I tried to do this:

ADD_LIBRARY(MyLibs ${Sources})

ADD_EXECUTABLE(Test1 Test1.cpp)
TARGET_LINK_LIBRARIES(Test1 ${MyLibs})

ADD_EXECUTABLE(Test2 Test2.cpp)
TARGET_LINK_LIBRARIES(Test2 ${MyLibs})

But I get a whole bunch of linker errors - "Undefined reference to ..."

Have I done something wrong / how would I do this?

Thanks,

David