[CMake] Sharing sources between two targets

[J Decker]

to use the same sources in multiple outputs, with different compile
options, I make a copy of the file (copy_if_different) into the binary, and
then specify that for the related projects.

EXECUTE_PROCESS(COMMAND cmake -E copy_if_different
${CMAKE_SOURCE_DIR}/${VECTLIB_SOURCES}
${CMAKE_BINARY_DIR}/src/vectlib/vectlib_double.cpp )

it's quite happy to make any missing path parts... can do something to
extract original path parts so you can make it be a similar relative path
in the binary.


On Mon, Apr 22, 2013 at 11:45 AM, Nick Gnedin <ngnedin at gmail.com> wrote:

>
> Folks,
>
> I am using CMake to create 2 targets - a stand-alone executable and a
> library that can be imported by Python. Both share most of the sources. If
> I just specify them as two separate targets, each will compile all the
> sources, so most of the source files end up compiled twice.
>
> Is there a way to share the compiled sources between the two targets? I
> can create an intermediate library, but that is less convenient since the
> executable will then depend on it. What I would really like is to have a
> self-contained executable and a separate library that use the same object
> files.
>
> Many thanks for any hint,
>
> Nick Gnedin
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