set LLVM env var, so emcc can find the waterfall llvm build
set LLVM env var, so emcc can find the waterfall llvm build

ddcc/binaryen,yurydelendik/binaryen,yurydelendik/binaryen,ddcc/binaryen,WebAssembly/binaryen,WebAssembly/binaryen,yurydelendik/binaryen,WebAssembly/binaryen,yurydelendik/binaryen,WebAssembly/binaryen,ddcc/binaryen,ddcc/binaryen,ddcc/binaryen,WebAssembly/binaryen,yurydelendik/binaryen