It is just a caching bug. You shouldn't need to recompile the runtime to statically link it. Red might not have a way to store intermediate static linking fil

It is just a caching bug. You shouldn't need to recompile the runtime to statically link it. Red might not have a way to store intermediate static linking files and so is forced to do a full compilation everytime. Caching at the output file level is simplest but can result in these kinds of weird performance issues. (Shipping a precompiled library is standard to avoid this pain point, MSVC includes four versions of its standard library, Debug/Release and Static/Dynamic in the various combinations)