Not sure why this is necessary but it fixes the gperf build
Adds support for the Emscripten SDK via CMake.
Follow-up to 75222ccef8
75222ccef8
1. Platform and toolchain files are now all under `platforms/`, with a single `CMake/platforms/${platform}.cmake` per platform. 2. Custom functions/macros are under `functions/`. 3. Finder modules are in `/finders`.