1 files changed, 17 insertions, 0 deletions
diff --git a/lib/mlibc/.github/workflows/detect-bad-ifs.yml b/lib/mlibc/.github/workflows/detect-bad-ifs.yml
new file mode 100644
index 0000000..c738d29
--- /dev/null
+++ b/lib/mlibc/.github/workflows/detect-bad-ifs.yml
@@ -0,0 +1,17 @@
+name: Detect ifdef/defined (mis)use
+
+on: [push, pull_request]
+
+jobs:
+  find-misuse:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - run: |
+        printf '(^#ifn?def[[:space:]]+|defined[[:space:]]*[(][[:space:]]*)((%s)([^_A-Za-z0-9]|$))\0' \
+                  "$(printf '%s' "$(awk '/#mesondefine/ { print $2 }' mlibc-config.h.in)" | tr '\n' '|')" \
+                | { ! xargs -0I '{}' grep --color=always -PR '{}' \
+                || { echo 'found misuse'; exit 1; }; }
+
+
+# vim: set sw=2 :