Add target option for linker environment variables

[rust.git] / src / librustc_back / target / wasm32_experimental_emscripten.rs

diff --git a/src/librustc_back/target/wasm32_experimental_emscripten.rs b/src/librustc_back/target/wasm32_experimental_emscripten.rs
index 1a95c93363adb9095ca88b6ed62cf8738600f16a..053fab54250194a9186a79ee3983cbb1238dd261 100644 (file)
--- a/src/librustc_back/target/wasm32_experimental_emscripten.rs
+++ b/src/librustc_back/target/wasm32_experimental_emscripten.rs
@@ -30,6 +30,7 @@ pub fn target() -> Result<Target, String> {
         // possibly interpret the wasm, and a .wasm file
         exe_suffix: ".js".to_string(),
         linker_is_gnu: true,
+        link_env: vec![("EMCC_WASM_BACKEND".to_string(), "1".to_string())],
         allow_asm: false,
         obj_is_bitcode: true,
         is_like_emscripten: true,