--- Lib/ctypes/macholib/dyld.py.orig 2019-12-10 08:37:42.000000000 -0500 +++ Lib/ctypes/macholib/dyld.py 2019-12-10 08:38:10.000000000 -0500 @@ -23,7 +23,7 @@ DEFAULT_LIBRARY_FALLBACK = [ os.path.expanduser("~/lib"), - "/usr/local/lib", + "@@PREFIX@@/lib", "/lib", "/usr/lib", ]