huanghongchangdeiMac:Safari_605.1.15 huanghongchang$ xcode-select -p /Applications/Xcode.app/Contents/Developer huanghongchangdeiMac:Safari_605.1.15 huanghongchang$ xcodebuild -version Xcode 11.0 Build version 11M392q huanghongchangdeiMac:Safari_605.1.15 huanghongchang$ Tools/Scripts/build-webkit --debug ************************************************************* Xcode 7.0 or later is required to build WebKit. You have an earlier version of Xcode, thus the build will most likely fail. The latest Xcode is available from the App Store. ************************************************************* perl Tools/Scripts/copy-webkitlibraries-to-product-directory --wksi /Users/huanghongchang/Documents/worksapce/Safari_605.1.15/WebKitBuild/Debug User defaults from command line: UseSanitizedBuildSystemEnvironment = YES Build settings from command line: ARCHS = x86_64 OBJROOT = /Users/huanghongchang/Documents/worksapce/Safari_605.1.15/WebKitBuild SHARED_PRECOMPS_DIR = /Users/huanghongchang/Documents/worksapce/Safari_605.1.15/WebKitBuild/PrecompiledHeaders SYMROOT = /Users/huanghongchang/Documents/worksapce/Safari_605.1.15/WebKitBuild note: Using new build system note: Planning build note: Using build description from disk error: /Users/huanghongchang/Documents/worksapce/Safari_605.1.15/Source/ThirdParty/libwebrtc/Configurations/Base.xcconfig:1: could not find included file '../../../../../Internal/Configurations/HaveInternalSDK.xcconfig' in search paths (in target 'libwebrtc' from project 'libwebrtc') error: /Users/huanghongchang/Documents/worksapce/Safari_605.1.15/Source/ThirdParty/libwebrtc/Configurations/Base.xcconfig:1: could not find included file '../../../../../Internal/Configurations/HaveInternalSDK.xcconfig' in search paths (in target 'libwebrtc' from project 'libwebrtc') error: /Users/huanghongchang/Documents/worksapce/Safari_605.1.15/Source/ThirdParty/libwebrtc/Configurations/Base.xcconfig:1: could not find included file '../../../../../Internal/Configurations/HaveInternalSDK.xcconfig' in search paths (in target 'libwebrtc' from project 'libwebrtc') warning: Skipping duplicate build file in Copy Headers build phase: /Users/huanghongchang/Documents/worksapce/Safari_605.1.15/Source/ThirdParty/libwebrtc/Source/webrtc/voice_engine/transport_feedback_packet_loss_tracker.h (in target 'libwebrtc' from project 'libwebrtc') error: /Users/huanghongchang/Documents/worksapce/Safari_605.1.15/Source/ThirdParty/libwebrtc/Configurations/Base.xcconfig:1: could not find included file '../../../../../Internal/Configurations/HaveInternalSDK.xcconfig' in search paths (in target 'webrtcpcrtc' from project 'libwebrtc') error: /Users/huanghongchang/Documents/worksapce/Safari_605.1.15/Source/ThirdParty/libwebrtc/Configurations/Base.xcconfig:1: could not find included file '../../../../../Internal/Configurations/HaveInternalSDK.xcconfig' in search paths (in target 'webrtcpcrtc' from project 'libwebrtc') error: /Users/huanghongchang/Documents/worksapce/Safari_605.1.15/Source/ThirdParty/libwebrtc/Configurations/Base.xcconfig:1: could not find included file '../../../../../Internal/Configurations/HaveInternalSDK.xcconfig' in search paths (in target 'webrtcpcrtc' from project 'libwebrtc') error: /Users/huanghongchang/Documents/worksapce/Safari_605.1.15/Source/ThirdParty/libwebrtc/Configurations/Base.xcconfig:1: could not find included file '../../../../../Internal/Configurations/HaveInternalSDK.xcconfig' in search paths (in target 'Copy webrtc headers' from project 'libwebrtc') error: /Users/huanghongchang/Documents/worksapce/Safari_605.1.15/Source/ThirdParty/libwebrtc/Configurations/Base.xcconfig:1: could not find included file '../../../../../Internal/Configurations/HaveInternalSDK.xcconfig' in search paths (in target 'Copy webrtc headers' from project 'libwebrtc') error: /Users/huanghongchang/Documents/worksapce/Safari_605.1.15/Source/ThirdParty/libwebrtc/Configurations/Base.xcconfig:1: could not find included file '../../../../../Internal/Configurations/HaveInternalSDK.xcconfig' in search paths (in target 'Copy webrtc headers' from project 'libwebrtc') error: /Users/huanghongchang/Documents/worksapce/Safari_605.1.15/Source/ThirdParty/libwebrtc/Configurations/Base.xcconfig:1: could not find included file '../../../../../Internal/Configurations/HaveInternalSDK.xcconfig' in search paths (in target 'usrsctp' from project 'libwebrtc') error: /Users/huanghongchang/Documents/worksapce/Safari_605.1.15/Source/ThirdParty/libwebrtc/Configurations/Base.xcconfig:1: could not find included file '../../../../../Internal/Configurations/HaveInternalSDK.xcconfig' in search paths (in target 'usrsctp' from project 'libwebrtc') error: /Users/huanghongchang/Documents/worksapce/Safari_605.1.15/Source/ThirdParty/libwebrtc/Configurations/Base.xcconfig:1: could not find included file '../../../../../Internal/Configurations/HaveInternalSDK.xcconfig' in search paths (in target 'usrsctp' from project 'libwebrtc') error: /Users/huanghongchang/Documents/worksapce/Safari_605.1.15/Source/ThirdParty/libwebrtc/Configurations/Base.xcconfig:1: could not find included file '../../../../../Internal/Configurations/HaveInternalSDK.xcconfig' in search paths (in target 'srtp' from project 'libwebrtc') error: /Users/huanghongchang/Documents/worksapce/Safari_605.1.15/Source/ThirdParty/libwebrtc/Configurations/Base.xcconfig:1: could not find included file '../../../../../Internal/Configurations/HaveInternalSDK.xcconfig' in search paths (in target 'srtp' from project 'libwebrtc') error: /Users/huanghongchang/Documents/worksapce/Safari_605.1.15/Source/ThirdParty/libwebrtc/Configurations/Base.xcconfig:1: could not find included file '../../../../../Internal/Configurations/HaveInternalSDK.xcconfig' in search paths (in target 'srtp' from project 'libwebrtc') error: /Users/huanghongchang/Documents/worksapce/Safari_605.1.15/Source/ThirdParty/libwebrtc/Configurations/Base.xcconfig:1: could not find included file '../../../../../Internal/Configurations/HaveInternalSDK.xcconfig' in search paths (in target 'boringssl' from project 'libwebrtc') error: /Users/huanghongchang/Documents/worksapce/Safari_605.1.15/Source/ThirdParty/libwebrtc/Configurations/Base.xcconfig:1: could not find included file '../../../../../Internal/Configurations/HaveInternalSDK.xcconfig' in search paths (in target 'boringssl' from project 'libwebrtc') error: /Users/huanghongchang/Documents/worksapce/Safari_605.1.15/Source/ThirdParty/libwebrtc/Configurations/Base.xcconfig:1: could not find included file '../../../../../Internal/Configurations/HaveInternalSDK.xcconfig' in search paths (in target 'boringssl' from project 'libwebrtc') warning: Skipping duplicate build file in Compile Sources build phase: /Users/huanghongchang/Documents/worksapce/Safari_605.1.15/Source/ThirdParty/libwebrtc/Source/third_party/boringssl/src/crypto/x509/x_all.c (in target 'boringssl' from project 'libwebrtc') error: /Users/huanghongchang/Documents/worksapce/Safari_605.1.15/Source/ThirdParty/libwebrtc/Configurations/Base.xcconfig:1: could not find included file '../../../../../Internal/Configurations/HaveInternalSDK.xcconfig' in search paths (in target 'yuv' from project 'libwebrtc') error: /Users/huanghongchang/Documents/worksapce/Safari_605.1.15/Source/ThirdParty/libwebrtc/Configurations/Base.xcconfig:1: could not find included file '../../../../../Internal/Configurations/HaveInternalSDK.xcconfig' in search paths (in target 'yuv' from project 'libwebrtc') error: /Users/huanghongchang/Documents/worksapce/Safari_605.1.15/Source/ThirdParty/libwebrtc/Configurations/Base.xcconfig:1: could not find included file '../../../../../Internal/Configurations/HaveInternalSDK.xcconfig' in search paths (in target 'yuv' from project 'libwebrtc') error: /Users/huanghongchang/Documents/worksapce/Safari_605.1.15/Source/ThirdParty/libwebrtc/Configurations/Base.xcconfig:1: could not find included file '../../../../../Internal/Configurations/HaveInternalSDK.xcconfig' in search paths (in target 'opus' from project 'libwebrtc') error: /Users/huanghongchang/Documents/worksapce/Safari_605.1.15/Source/ThirdParty/libwebrtc/Configurations/Base.xcconfig:1: could not find included file '../../../../../Internal/Configurations/HaveInternalSDK.xcconfig' in search paths (in target 'opus' from project 'libwebrtc') error: /Users/huanghongchang/Documents/worksapce/Safari_605.1.15/Source/ThirdParty/libwebrtc/Configurations/Base.xcconfig:1: could not find included file '../../../../../Internal/Configurations/HaveInternalSDK.xcconfig' in search paths (in target 'opus' from project 'libwebrtc') ** BUILD FAILED **
Safari-605.1.15 is almost two years old. There is no reason to expect that Xcode 11 beta would build it successfully.