Support Conan 2

[nilanjan]

I am trying to enable conan and facing the following error. Also can I get conan_extra_options?

-- Conan: Adding conancenter remote repository (https://center.conan.io/) verify ssl (True)
-- Configuring incomplete, errors occurred!

[aminya]

This cannot be reproduced inside CI. Can you provide a minimal reproducible example? What version of Conan do you have installed?

[nilanjan]

I am on macOS ventura. Conan version 2.0.4. Conan is installed n a python virtual env. No conan profile is setup.

[nilanjan]

MacOS 13.3.1 on M1 Max machine.

[FeignClaims]

The official cmake support for conan 2.0 is experimental (see the README in conan-io/cmake-conan). Also, this repo hasn't update to the conan 2.0 version.

The way you use conan 2.0 with this repo for now, is to disable it in project_options options and run conan separately (see conan 2.0 tutorial for help if you need). I found this way is more useful (for now), as conan will generate CMakeUserPresets.json for you, so multiple toolchains can be configured easily by simply adding a conan profile.

My conan 2.0 template might help, but I documented it badly.

[nilanjan]

@FeignClaims It was really helpful for most of the things other than google test. Do you have setup for the google test somewhere?

[FeignClaims]

@FeignClaims Do you have setup for the google test somewhere?

@nilanjan By running conan install . -b missing, conan should install google test for you. I configured it in conanfile.py as test_requires in the section build_requirements(), which is a dedicated place to define tool_requires and test_requires.

[aminya]

Conan 2 support is still experimental. Not sure if we should start adding it to project_options yet. There are also some issues with the latest released version (See #184)

Windows tests with LLVM and MSVC fail to build. Seems to be related to:
conan-io/cmake-conan#459
conan-io/cmake-conan#455
conan-io/cmake-conan#454

[aminya]

Is there anyone interested in integrating CMake Conan 2? Contributions are welcome.

[FeignClaims]

@aminya conan 1 adds support for clang 17 in 1.62.0 now, so the test projects in this repo should work after updating setup-cpp.

I'm willing to integrate conan 2, but I'm afraid I won't have enough time until next month.