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fix(metadata-generator): emit UIKit metadata for Mac Catalyst #433

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Merged
edusperoni merged 1 commit into from
Aug 11, 2026
+11 −1
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fix(metadata-generator): emit UIKit metadata for Mac Catalyst #433

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12 changes: 11 additions & 1 deletion metadata-generator/build-step-metadata-generator.py
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Original file line number Diff line number Diff line change
Expand Up @@ -85,13 +85,23 @@ def map_and_list(func, iterable):
sdk_root = env("SDKROOT")
src_root = env("SRCROOT")
deployment_target_flag_name = env_or_empty("DEPLOYMENT_TARGET_CLANG_FLAG_NAME") or default_deployment_target_flag_name
deployment_target = env(env_or_empty("DEPLOYMENT_TARGET_CLANG_ENV_NAME") or default_deployment_target_clang_env_name)
# Xcode does not export MACCATALYST_DEPLOYMENT_TARGET unless the project sets it,
# so fall back to the iOS deployment target rather than dying with a KeyError.
deployment_target = env_or_none(env_or_empty("DEPLOYMENT_TARGET_CLANG_ENV_NAME") or default_deployment_target_clang_env_name) \
or env("IPHONEOS_DEPLOYMENT_TARGET")
std = env("GCC_C_LANGUAGE_STANDARD")
header_search_paths = env_or_empty("HEADER_SEARCH_PATHS")
header_search_paths_parsed = map_and_list((lambda s: "-I" + s), shlex.split(header_search_paths))
framework_search_paths = shlex.split(env_or_empty("FRAMEWORK_SEARCH_PATHS"))
# Add extra framework search path for newer Xcode versions
framework_search_paths.append(os.path.join(sdk_root, "System/Library/SubFrameworks"))
if effective_platform_name == "-maccatalyst":
# UIKit and the rest of the iOS-flavoured frameworks live under iOSSupport in
# the macOS SDK. Xcode passes these to the real compile via -iframework, which
# never reaches FRAMEWORK_SEARCH_PATHS, so without them the generated metadata
# contains no UIKit at all ("ReferenceError: UIDevice is not defined").
framework_search_paths.append(os.path.join(sdk_root, "System/iOSSupport/System/Library/Frameworks"))
framework_search_paths.append(os.path.join(sdk_root, "System/iOSSupport/System/Library/SubFrameworks"))
framework_search_paths_parsed = map_and_list((lambda s: "-F" + s), framework_search_paths)
other_cflags = env_or_empty("OTHER_CFLAGS")
other_cflags_parsed = shlex.split(other_cflags)
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