gh-114099 - Add iOS framework loading machinery. (GH-116454)

Co-authored-by: Malcolm Smith <smith@chaquo.com>
Co-authored-by: Eric Snow <ericsnowcurrently@gmail.com>

Lib/ctypes/__init__.py

@@ -348,6 +348,17 @@ class CDLL(object):
                  winmode=None):
         if name:
             name = _os.fspath(name)
+
+            # If the filename that has been provided is an iOS/tvOS/watchOS
+            # .fwork file, dereference the location to the true origin of the
+            # binary.
+            if name.endswith(".fwork"):
+                with open(name) as f:
+                    name = _os.path.join(
+                        _os.path.dirname(_sys.executable),
+                        f.read().strip()
+                    )
+
         self._name = name
         flags = self._func_flags_
         if use_errno:

Lib/ctypes/util.py

@@ -67,7 +67,7 @@ if os.name == "nt":
                 return fname
         return None
 
-elif os.name == "posix" and sys.platform == "darwin":
+elif os.name == "posix" and sys.platform in {"darwin", "ios", "tvos", "watchos"}:
     from ctypes.macholib.dyld import dyld_find as _dyld_find
     def find_library(name):
         possible = ['lib%s.dylib' % name,