187678 2018-07-14 11:30:18 -0700 Link error (duplicate symbol _g_gigacageBasePtrs) when building with USE_SYSTEM_MALLOC=1 2018-07-14 11:46:40 -0700 1 1 1 Unclassified WebKit Web Template Framework WebKit Nightly Build Unspecified Unspecified NEW P2 Normal --- 1 simon.fraser webkit-unassigned fpizlo simon.fraser oldest_to_newest 1442231 0 simon.fraser 2018-07-14 11:30:18 -0700 Building with USE_SYSTEM_MALLOC=1: /JavaScriptCore.framework/Versions/A/JavaScriptCore duplicate symbol _g_gigacageBasePtrs in: /Volumes/Data/Development/apple/webkit/OpenSource/WebKitBuild/Release/DerivedSources/JavaScriptCore/libWTF.a(Gigacage.o) ld: 1 duplicate symbol for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation) 1442232 1 simon.fraser 2018-07-14 11:46:40 -0700 I think this is because we pull in _g_gigacageBasePtrs from both bmalloc and WTF