[CMake] Config.cmake.in: Conditionally serve static or shared library

[ThePhD]

I think you can use what's called an "Alias Library":
https://cmake.org/cmake/help/latest/command/add_library.html#alias-libraries

if (BUILD_SHARED_LIBS)
     add_library(my_libprimesieve ALIAS libprimesieve)
else
     add_library(my_libprimesieve ALIAS libprimesieve-static)
endif(BUILD_SHARED_LIBS)

Then, set it properly to Primesieve::Primesieve and it should work.


On Wed, Feb 14, 2018 at 10:21 AM, Kim Walisch <kim.walisch at gmail.com> wrote:

> Hi,
>
> My primesieve project builds as both a static and a shared library, hence
> there are 2 targets in my main CMakeLists.txt:
>
> 1) libprimesieve (shared library)
> 2) libprimesieve-static
>
> I am now trying to add support for find_package(Primesieve). Ideally I
> would like that users can link against libprimesieve as follows:
>
> find_package(Primesieve REQUIRED)
> target_link_libraries(user_library Primesieve::Primesieve)
>
> And I want Primesieve::Primesieve to be an alias for
> Primesieve::libprimesieve if BUILD_SHARED_LIBS=ON (in the user's
> CMakeLists.txt) and and alias for Primesieve::libprimesieve-static if
> BUILD_SHARED_LIBS=OFF (or if it is not set).
>
> Is this possible?
> Do you know any library that has already implemented this?
>
> Thanks,
> Kim
>
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