port: advance MSVC600 CPython compatibility frontier

scripts/generate-getpath-frozen.sh

@@ -0,0 +1,63 @@
+#!/usr/bin/env bash
+#
+# Generate the CPython frozen getpath.py header into ignored build output.
+#
+# CPython's build documents this target in Makefile.pre.in:
+#   Python/frozen_modules/getpath.h: Modules/getpath.py ...
+#       Programs/_freeze_module.py getpath Modules/getpath.py Python/frozen_modules/getpath.h
+#
+# This script intentionally writes under build/generated/cpython/... so the
+# repository does not track generated bytecode headers or vendor files.
+#
+# Usage:
+#   scripts/generate-getpath-frozen.sh [output-root]
+#
+# Output:
+#   <output-root>/cpython/Python/frozen_modules/getpath.h
+#   default output-root: build/generated
+
+set -u
+
+REPO_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+CPYTHON_ROOT="$REPO_ROOT/cpython"
+OUTPUT_ROOT="${1:-$REPO_ROOT/build/generated}"
+OUT_DIR="$OUTPUT_ROOT/cpython/Python/frozen_modules"
+OUT_HEADER="$OUT_DIR/getpath.h"
+FREEZE_SCRIPT="$CPYTHON_ROOT/Programs/_freeze_module.py"
+INPUT="$CPYTHON_ROOT/Modules/getpath.py"
+
+usage() {
+    sed -n '11,19p' "$REPO_ROOT/scripts/generate-getpath-frozen.sh"
+}
+
+if [ "${1:-}" = "-h" ] || [ "${1:-}" = "--help" ]; then
+    usage
+    exit 0
+fi
+
+for required in "$CPYTHON_ROOT" "$FREEZE_SCRIPT" "$INPUT"; do
+    if [ ! -e "$required" ]; then
+        echo "generate-getpath-frozen: missing prerequisite: $required" >&2
+        exit 2
+    fi
+done
+
+if ! command -v python3 >/dev/null 2>&1; then
+    echo "generate-getpath-frozen: missing prerequisite: python3" >&2
+    exit 2
+fi
+
+mkdir -p "$OUT_DIR"
+python3 "$FREEZE_SCRIPT" getpath "$INPUT" "$OUT_HEADER"
+status=$?
+if [ "$status" -ne 0 ]; then
+    echo "generate-getpath-frozen: _freeze_module.py failed with exit $status" >&2
+    exit "$status"
+fi
+
+if [ ! -s "$OUT_HEADER" ]; then
+    echo "generate-getpath-frozen: expected nonempty output missing: $OUT_HEADER" >&2
+    exit 2
+fi
+
+printf '%s\n' "${OUT_HEADER#$REPO_ROOT/}"