Don't try and build the make support libraries if this is a WASM build... we'll figur...

Don't try and build the make support libraries if this is a WASM build... we'll figure this out later

It involves using two compilers in the build process, and as EMSCRIPTEN mostly uses static linking, using dlopen to figure out symbol presence probably isn't going to work.  We'll need some higher level function that execs the wasm linker like configure does.