Merge branch 'Issue1747' of https://gitlab.xiph.org/seanm/ogg into macos-types
diff --git a/.github/workflows/macos-types.yml b/.github/workflows/macos-types.yml
new file mode 100644
index 0000000..9e99dc7
--- /dev/null
+++ b/.github/workflows/macos-types.yml
@@ -0,0 +1,20 @@
+name: macOS type diagnostics
+
+on:
+  push:
+  schedule:
+    - cron: '0 0 1 * *'
+
+jobs:
+  build:
+
+    runs-on: macos-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: grep sys/types.h
+        run: fgrep int32_t /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/types.h
+
+      - name: cat sys/types.h
+        run: cat /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/types.h