ios - 找不到用于 clang 构建 Mac Catalyst 的 UIKit/UIKit.h

Question

我正在使用以下标志为 Mac Catalyst 构建静态 iOS/macOS 库:

clang \
  --target=x86_64-apple-ios13-macabi \
  -isysroot /Applications/Xcode_11.3.1.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk

这会构建普通源文件，但失败并显示:

#if TARGET_OS_IPHONE || TARGET_OS_SIMULATOR
#import <UIKit/UIKit.h>
#endif

由于定义了 TARGET_OS_IPHONE，因此看起来目标标志正在工作。然而，没有找到 UIKit/UIKit.h，即使它在 SDK 中:

$ find -L /Applications/Xcode_11.3.1.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk -name UIKit.h
/Applications/Xcode_11.3.1.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk/System/iOSSupport/System/Library/Frameworks/UIKit.framework/Versions/A/Headers/UIKit.h
/Applications/Xcode_11.3.1.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk/System/iOSSupport/System/Library/Frameworks/UIKit.framework/Versions/Current/Headers/UIKit.h
/Applications/Xcode_11.3.1.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk/System/iOSSupport/System/Library/Frameworks/UIKit.framework/Headers/UIKit.h

我需要明确指定 UIKit 框架吗？

Answer 1

使这项工作有效的双重 secret build设置是:

FAT_LIB_MAC_CATALYST_FLAGS = -arch x86_64h \
 --target=x86_64-apple-ios13-macabi \
 -isysroot $(MACOSX_SDK_DIR) \
 -isystem $(MACOSX_SDK_DIR)/System/iOSSupport/usr/include \
 -iframework $(MACOSX_SDK_DIR)/System/iOSSupport/System/Library/Frameworks