enable build for node

CMakeLists.txt

@@ -33,6 +33,7 @@ option(ENABLE_NV_EXTENSIONS "Enables support of Nvidia-specific extensions" ON)
 
 option(ENABLE_GLSLANG_WEB "Reduces glslang to minumum needed for web use" OFF)
 option(ENABLE_EMSCRIPTEN_SINGLE_FILE "If using emscripten, enables SINGLE_FILE build" OFF)
+option(ENABLE_EMSCRIPTEN_ENVIRONMENT_NODE "If using emscripten, builds to run on Node instead of Web" OFF)
 
 CMAKE_DEPENDENT_OPTION(ENABLE_HLSL "Enables HLSL input support" ON "NOT ENABLE_GLSLANG_WEB" OFF)
 
@@ -113,13 +114,20 @@ if(ENABLE_GLSLANG_WEB)
         add_link_options("SHELL: -s FILESYSTEM=0")
         add_link_options("SHELL: --llvm-lto 1")
         add_link_options("SHELL: --closure 1")
-        add_link_options("SHELL: -s ENVIRONMENT=web,worker")
         add_link_options("SHELL: -s ALLOW_MEMORY_GROWTH=1")
 
         add_link_options("SHELL: -s MODULARIZE=1")
         if(ENABLE_EMSCRIPTEN_SINGLE_FILE)
             add_link_options("SHELL: -s SINGLE_FILE=1")
         endif(ENABLE_EMSCRIPTEN_SINGLE_FILE)
+
+        if(ENABLE_EMSCRIPTEN_ENVIRONMENT_NODE)
+            add_link_options("SHELL: -s ENVIRONMENT=node")
+            add_link_options("SHELL: -s BINARYEN_ASYNC_COMPILATION=0")
+        else()
+            add_link_options("SHELL: -s ENVIRONMENT=web,worker")
+            add_link_options("SHELL: -s EXPORT_ES6=1")
+        endif()
     else()
       if(MSVC)
         add_compile_options(/Os /GR-)