This caused nlohmann/json.hpp to leak into a lot of compilation units, which is slow (when not using precompiled headers). Cuts build time from 46m24s to 42m5s (real time with -j24: 2m42s to 2m24s).
This caused nlohmann/json.hpp to leak into a lot of compilation units, which is slow (when not using precompiled headers). Cuts build time from 46m24s to 42m5s (real time with -j24: 2m42s to 2m24s).