e.g.: https://build.webkit.org/builders/Apple%20High%20Sierra%20Release%20WK2%20%28Tests%29/builds/12097/steps/webkitpy-test/logs/stdio https://ews-build.webkit.org/#/builders/5/builds/3245/steps/7/logs/stdio Ld /Volumes/Data/worker/WebKitPy-Tests-EWS/build/WebKitBuild/Release/lldbWebKitTester normal x86_64 cd /Volumes/Data/worker/WebKitPy-Tests-EWS/build/Tools/lldb/lldbWebKitTester export MACOSX_DEPLOYMENT_TARGET=10.13 /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ -arch x86_64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.13.sdk -L/Volumes/Data/worker/WebKitPy-Tests-EWS/build/WebKitBuild/Release -F/Volumes/Data/worker/WebKitPy-Tests-EWS/build/WebKitBuild/Release -filelist /Volumes/Data/worker/WebKitPy-Tests-EWS/build/WebKitBuild/lldbWebKitTester.build/Release/lldbWebKitTester.build/Objects-normal/x86_64/lldbWebKitTester.LinkFileList -mmacosx-version-min=10.13 -Xlinker -object_path_lto -Xlinker /Volumes/Data/worker/WebKitPy-Tests-EWS/build/WebKitBuild/lldbWebKitTester.build/Release/lldbWebKitTester.build/Objects-normal/x86_64/lldbWebKitTester_lto.o -Xlinker -no_deduplicate -stdlib=libc++ -framework Cocoa -framework Security -force_load /Volumes/Data/worker/WebKitPy-Tests-EWS/build/WebKitBuild/Release/libWTF.a -licucore -lWTF -Xlinker -dependency_info -Xlinker /Volumes/Data/worker/WebKitPy-Tests-EWS/build/WebKitBuild/lldbWebKitTester.build/Release/lldbWebKitTester.build/Objects-normal/x86_64/lldbWebKitTester_dependency_info.dat -o /Volumes/Data/worker/WebKitPy-Tests-EWS/build/WebKitBuild/Release/lldbWebKitTester Undefined symbols for architecture x86_64: "_compression_stream_destroy", referenced from: WTF::gunzip(unsigned char const*, unsigned long) in libWTF.a(GunzipCocoa.o) "_compression_stream_init", referenced from: WTF::gunzip(unsigned char const*, unsigned long) in libWTF.a(GunzipCocoa.o) "_compression_stream_process", referenced from: WTF::gunzip(unsigned char const*, unsigned long) in libWTF.a(GunzipCocoa.o) ld: symbol(s) not found for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation)
Failed in(r247115): https://build.webkit.org/builders/Apple%20Mojave%20Debug%20WK2%20%28Tests%29/builds/3396 Passed in(r247111): https://build.webkit.org/builders/Apple%20Mojave%20Debug%20WK2%20%28Tests%29/builds/3395 Passed in(r247113): https://build.webkit.org/builders/Apple%20Mojave%20Debug%20WK1%20%28Tests%29/builds/4284 Similarly, on High Sierra Release WK1 builder Passed in (r247113): https://build.webkit.org/builders/Apple%20High%20Sierra%20Release%20WK1%20%28Tests%29/builds/14084 Failed in (r247115): https://build.webkit.org/builders/Apple%20High%20Sierra%20Release%20WK1%20%28Tests%29/builds/14085
Probably broken by https://trac.webkit.org/changeset/247115/webkit
lldbWebKitTester needs to link to libcompression. But a rollback may be a more appropriate expedient fix.
I rolled out the breaking change in https://trac.webkit.org/changeset/247164 *** This bug has been marked as a duplicate of bug 198186 ***