Set crt_static_respected to true for the Emscripten target

Author: hoodmane

compiler/rustc_target/src/spec/wasm32_unknown_emscripten.rs

@@ -27,6 +27,8 @@ pub fn target() -> Target {
         exe_suffix: ".js".into(),
         linker: None,
         relocation_model: RelocModel::Pic,
+        crt_static_respected: true,
+        crt_static_default: true,
         panic_strategy: PanicStrategy::Unwind,
         no_default_libraries: false,
         post_link_args,