linkers: darwin: do not use -bundle for shared_modules

Both dynamic libraries and bundles these days can be dynamically loaded
using the dl APIs (e.g. dlopen, dlclose). It is not possible to include
bundles on a linker command line as if they were shared libraries,
but that's pretty much the only difference.

However, bundles fail the Apple verification for iOS:

2025-02-10 13:54:09.095 ERROR: Validation failed (409) The binary is invalid.
  The executable 'Runner.app/Frameworks/numpy._core._operand_flag_tests.framework/numpy._core._operand_flag_tests'
  has type 'BUNDLE' that is not valid. Only 'EXECUTE' is permitted.
2025-02-10 13:54:09.096 ERROR: Validation failed (409) Missing load commands.
  The executable at 'Runner.app/Frameworks/numpy._core._operand_flag_tests.framework'
  does not have the necessary load commands. Try rebuilding the app with the latest
  Xcode version. If you are using third party development tools, contact the provider.

So switch to -dynamiclib for shared modules as well.

Fixes: #14240
(cherry picked from commit cfb5a48)

Author: bonzini

docs/markdown/Builtin-options.md

@@ -257,8 +257,7 @@ with `b_asneeded`, so that option will be silently disabled.
 
 [[shared_module]]s will not have
 bitcode embedded because `-Wl,-bitcode_bundle` is incompatible with
-both `-bundle` and `-Wl,-undefined,dynamic_lookup` which are necessary
-for shared modules to work.
+`-Wl,-undefined,dynamic_lookup` which is necessary for shared modules to work.
 
 ## Compiler options
 

mesonbuild/linkers/linkers.py

@@ -795,7 +795,7 @@ def get_allow_undefined_args(self) -> T.List[str]:
         return self._apply_prefix('-undefined,dynamic_lookup')
 
     def get_std_shared_module_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
-        return ['-bundle'] + self._apply_prefix('-undefined,dynamic_lookup')
+        return ['-dynamiclib'] + self._apply_prefix('-undefined,dynamic_lookup')
 
     def get_pie_args(self) -> T.List[str]:
         return []