diff --git a/recipes/recipes_emscripten/clang-resource-headers/build.sh b/recipes/recipes_emscripten/clang-resource-headers/build.sh
index 8b9d7d9c7e2..f835940140e 100644
--- a/recipes/recipes_emscripten/clang-resource-headers/build.sh
+++ b/recipes/recipes_emscripten/clang-resource-headers/build.sh
@@ -1,19 +1,21 @@
 #!/bin/bash
 set -e
 
-STAGING_DIR="$PWD/staging"
-SRC_DIR="${PREFIX}/lib/clang"
+SRC_ROOT="${HOST_PREFIX:-$PREFIX}"
+SRC_DIR="${SRC_ROOT}/lib/clang"
 DEST_DIR="${PREFIX}/lib/clang"
+STAGING_DIR="${PWD}/staging"
 
 if [ ! -d "$SRC_DIR" ]; then
     echo "ERROR: $SRC_DIR does not exist"
     exit 1
 fi
 
-mkdir -p "$STAGING_DIR"
-cp -r "$SRC_DIR" "$STAGING_DIR/clang"
+mkdir -p "$STAGING_DIR/clang"
+cp -a "$SRC_DIR/." "$STAGING_DIR/clang/"
 
-rm -rf "$PREFIX"/*
+# Start from an empty prefix so the restored headers are packaged as new content.
+find "$PREFIX" -mindepth 1 -maxdepth 1 -exec rm -rf {} +
 
 mkdir -p "$DEST_DIR"
-cp -r "$STAGING_DIR/clang/"* "$DEST_DIR"
+cp -a "$STAGING_DIR/clang/." "$DEST_DIR/"
diff --git a/recipes/recipes_emscripten/clang-resource-headers/recipe.yaml b/recipes/recipes_emscripten/clang-resource-headers/recipe.yaml
index 67d95d0d245..10240360484 100644
--- a/recipes/recipes_emscripten/clang-resource-headers/recipe.yaml
+++ b/recipes/recipes_emscripten/clang-resource-headers/recipe.yaml
@@ -1,14 +1,16 @@
 context:
-  version: 21.1.8
-  major_version: 21
+  version: 22.1.8
+  major_version: 22
 
 package:
   name: clang-resource-headers
   version: ${{ version }}
 
 build:
-  number: 1
+  number: 0
   noarch: generic
+  script:
+    file: build.sh
 
 requirements:
   host: