I fixed the Linux and Mac Clang builds of the project.
As far as I can tell, the Conan package for SFML is incompatible with GCC on Mac. The package specifies the compiler flag -stdlib=libc++, which applies to Clang but not GCC. I removed the Mac GCC build entirely. I really don't like this solution, but I'm not seeing any other option here.
I fixed the Linux and Mac Clang builds of the project.
As far as I can tell, the Conan package for SFML is incompatible with GCC on Mac. The package specifies the compiler flag
-stdlib=libc++
, which applies to Clang but not GCC. I removed the Mac GCC build entirely. I really don't like this solution, but I'm not seeing any other option here.