CMake error building on Fedora 35

[torwig]

Search before asking

• I had searched in the issues and found no similar issues.

Version

Unstable branch: fac42b0
OS: Fedora 35

Minimal reproduce step

Clone repo.

mkdir build
cd build
cmake ../

What did you expect to see?

No errors

What did you see instead?

CMake Error at /usr/lib64/cmake/GTest/GTestTargets.cmake:37 (message):
  Some (but not all) targets in this export set were already defined.

  Targets Defined: GTest::gtest;GTest::gtest_main

  Targets not yet defined: GTest::gmock;GTest::gmock_main

Call Stack (most recent call first):
  /usr/lib64/cmake/GTest/GTestConfig.cmake:42 (include)
  /usr/share/cmake/Modules/FindGTest.cmake:187 (find_package)
  build/_deps/snappy-src/CMakeLists.txt:40 (find_package)

Anything Else?

No response

Are you willing to submit a PR?

• I'm willing to submit a PR!

[git-hulk]

Many thanks to @torwig. We can add the Fedora OS as well if you know how to do that. ❤️

[torwig]

@git-hulk I don't think that I know how to do that. I guess Fedora is very similar to Red Hat, so this issue is rather an exception than the rule, so maybe Fedora doesn't need a separate section/build/etc.

[git-hulk]

Thanks, @torwig.
Sorry that I didn't claim the context clearly. What I mean is we can run the build and test on Fedora to aware the similar build error in the future. Like we have done in Ubuntu/macOS with different modes in GitHub Actions. But I think it's ok to fix the build error only.

[aleksraiden]

Reproduced at Debian 11 too

`-- Looking for sysconf
-- Looking for sysconf - found
CMake Error at /usr/lib/x86_64-linux-gnu/cmake/GTest/GTestTargets.cmake:37 (message):
Some (but not all) targets in this export set were already defined.

Targets Defined: GTest::gtest;GTest::gtest_main

Targets not yet defined: GTest::gmock;GTest::gmock_main

Call Stack (most recent call first):
/usr/lib/x86_64-linux-gnu/cmake/GTest/GTestConfig.cmake:42 (include)
/usr/local/share/cmake-3.24/Modules/FindGTest.cmake:194 (find_package)
build/_deps/snappy-src/CMakeLists.txt:40 (find_package)
`