1 files changed, 3 insertions, 2 deletions
diff --git a/Dockerfile b/Dockerfile
index 4b0f30f..1967156 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,7 @@
-FROM emscripten/emsdk as build
+FROM alpine as build
+RUN apk add clang lld
 COPY reduced_system_layer.c /usr/reduced_system_layer.c
-RUN emcc -D REDUCED_SYSTEM_LAYER_EXAMPLE -s ERROR_ON_UNDEFINED_SYMBOLS=0 -s EXPORTED_FUNCTIONS=_js_main,_js_init,_js_pixels,_js_frame -o /usr/index.wasm /usr/reduced_system_layer.c
+RUN clang -D REDUCED_SYSTEM_LAYER_EXAMPLE --target=wasm32 -nostdlib -Wl,--no-entry,--allow-undefined -o /usr/index.wasm /usr/reduced_system_layer.c
 
 FROM nginx:alpine
 EXPOSE 80