Emscripten: call llvm-ar directly.
Emscripten: call llvm-ar directly.

This calls the llvm-ar of emscripten's fastcomp directly without
going through the emar wrapper. See if this changes anything
under windows (missing path separators on Windows)

code-disaster/fips,code-disaster/fips,floooh/fips,floooh/fips,floooh/fips