use stub for anything not unix and not windows

.github/workflows/test.yml

@@ -121,6 +121,34 @@ jobs:
           RUST_VERSION: stable
           WASM: wasm_simple
 
+  wasm_emscripten:
+    strategy:
+      matrix:
+        os: [macos-latest]
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Install rust
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          target: wasm32-unknown-emscripten
+          override: true
+
+      - name: Install node
+        uses: actions/setup-node@v1
+        with:
+          node-version: '12'
+
+      - name: Build and Test
+        run: bash ci/github.sh
+        env:
+          RUST_VERSION: stable
+          WASM: wasm_emscripten
+
   cross-targets:
     strategy:
       matrix:

CHANGELOG.md

@@ -24,6 +24,7 @@ Versions with only mechanical changes will be omitted from the following list.
 * Add optional rkyv support.
 * Add support for microseconds timestamps serde serialization for `NaiveDateTime`.
 * Add support for optional timestamps serde serialization for `NaiveDateTime`.
+* Fix build for wasm32-unknown-emscripten (@yu-re-ka #593)
 
 ## 0.4.19
 

ci/github.sh

@@ -34,6 +34,8 @@ meaningful in the github actions feature matrix UI.
             test_wasm
         elif [[ ${WASM:-} == wasm_simple ]]; then
             test_wasm_simple
+        elif [[ ${WASM:-} == wasm_emscripten ]]; then
+            test_wasm_emscripten
         elif [[ ${CORE:-} == no_std ]]; then
             test_core
         elif [[ ${EXHAUSTIVE_TZ:-} == all_tzs ]]; then
@@ -112,4 +114,8 @@ test_wasm_simple() {
     fi
 }
 
+test_wasm_emscripten() {
+    runt cargo build --target wasm32-unknown-emscripten
+}
+
 main "$@"

src/sys/mod.rs

@@ -16,15 +16,15 @@
 
 use std::time::{SystemTime, UNIX_EPOCH};
 
-#[cfg(any(target_arch = "wasm32", target_env = "sgx"))]
+#[cfg(all(not(unix), not(windows)))]
 #[path = "stub.rs"]
 mod inner;
 
-#[cfg(all(unix, not(target_arch = "wasm32"), not(target_env = "sgx")))]
+#[cfg(unix)]
 #[path = "unix.rs"]
 mod inner;
 
-#[cfg(all(windows, not(target_arch = "wasm32"), not(target_env = "sgx")))]
+#[cfg(windows)]
 #[path = "windows.rs"]
 mod inner;