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-rw-r--r--src/librustc_back/target/asmjs_unknown_emscripten.rs1
-rw-r--r--src/librustc_back/target/wasm32_unknown_emscripten.rs1
2 files changed, 2 insertions, 0 deletions
diff --git a/src/librustc_back/target/asmjs_unknown_emscripten.rs b/src/librustc_back/target/asmjs_unknown_emscripten.rs
index d86a9b09327..98a9e343d00 100644
--- a/src/librustc_back/target/asmjs_unknown_emscripten.rs
+++ b/src/librustc_back/target/asmjs_unknown_emscripten.rs
@@ -23,6 +23,7 @@ pub fn target() -> Result<Target, String> {
         obj_is_bitcode: true,
         max_atomic_width: Some(32),
         post_link_args: vec!["-s".to_string(), "ERROR_ON_UNDEFINED_SYMBOLS=1".to_string()],
+        target_family: Some("unix".to_string()),
         .. Default::default()
     };
     Ok(Target {
diff --git a/src/librustc_back/target/wasm32_unknown_emscripten.rs b/src/librustc_back/target/wasm32_unknown_emscripten.rs
index 77ab4fcae70..fec269074da 100644
--- a/src/librustc_back/target/wasm32_unknown_emscripten.rs
+++ b/src/librustc_back/target/wasm32_unknown_emscripten.rs
@@ -26,6 +26,7 @@ pub fn target() -> Result<Target, String> {
         max_atomic_width: Some(32),
         post_link_args: vec!["-s".to_string(), "BINARYEN=1".to_string(),
                              "-s".to_string(), "ERROR_ON_UNDEFINED_SYMBOLS=1".to_string()],
+        target_family: Some("unix".to_string()),
         .. Default::default()
     };
     Ok(Target {