Fix: cannot build after #7060 on Win64 (#7754)

* Fix: cannot build after #7060 on Win64

* add double-quotes to `compiler.S.flags`

* fix windows-specific processes (`recipe.hooks.linking.prelink.[12].pattern.windows`)

* rewrite processing of "mkdir" and "cp" in python because of platform-independence

* make consistent with the use of quotation marks in other *.py files

tools/cp.py

@@ -0,0 +1,18 @@
+#!/usr/bin/env python3
+
+# Platform-independent single-file `cp`
+
+import argparse
+import shutil
+import sys
+
+def main():
+    parser = argparse.ArgumentParser(description='Platform-independent single-file `cp`')
+    parser.add_argument('src', action='store')
+    parser.add_argument('dst', action='store')
+    ns = parser.parse_args()
+    shutil.copyfile(ns.src, ns.dst)
+    return 0
+
+if __name__ == '__main__':
+    sys.exit(main())