This is on Ubuntu Focal. I have two stumbling blocks: ANNOUNCE.2.1 says:
> The submodule is available from: > > https://github.com/Tessil/robin-map/archive/757de82.zip > https://github.com/Tessil/robin-map/archive/757de82.tar.gz > > This will extract as robin-map-757de829927489bee55ab02147484850c687b620. > You must move the contents of that directory into third_party/robin_map in the > libobjc2 tree. > However, when I follow the instructions and say "cmake .." from the Build directory, I get this warning: > CMake Warning at CMakeLists.txt:118 (find_package): > By not providing "Findtsl-robin-map.cmake" in CMAKE_MODULE_PATH this > project has asked CMake to find a package configuration file provided by > "tsl-robin-map", but CMake did not find one. > > Could not find a package configuration file provided by "tsl-robin-map" > with any of the following names: > > tsl-robin-mapConfig.cmake > tsl-robin-map-config.cmake > > Add the installation prefix of "tsl-robin-map" to CMAKE_PREFIX_PATH or set > "tsl-robin-map_DIR" to a directory containing one of the above files. If > "tsl-robin-map" provides a separate development package or SDK, be sure it > has been installed. Am I missing a step? The second problem is that I get this warning: > CMake Warning at CMakeLists.txt:6 (message): > WARNING: It is strongly recommended that you compile with clang The README.md file says: > If you have gcc and clang both installed, then cmake currently defaults to > selecting gcc. You should override this by adding `-DCMAKE_C_COMPILER=clang > -DCMAKE_CXX_COMPILER=clang++` to your Objective-C flags. But where do I put these flags? Somewhere in CMakeLists.txt? In one of the numerous *.cmake files? - lc
