<div dir="ltr">Hi Dean,<br><br>Wondering if you've seen anything like this:<br><br><div>/usr/local/google/home/blaikie/dev/llvm/build/clang/debug/split/notypes/nostandalone/projects/compiler-rt/lib/xray/tests/unit && /usr/local/google/home/blaikie/dev/llvm/build/clang/debug/split/notypes/nostandalone/./bin/clang fdr_logging_test.cc.x86_64.o xray_unit_test_main.cc.x86_64.o gtest-all.cc.x86_64.o -o /usr/local/google/home/blaikie/dev/llvm/build/clang/debug/split/notypes/nostandalone/projects/compiler-rt/lib/xray/tests/unit/XRayFDRLoggingTest-x86_64 -Wl,-allow-shlib-undefined -m64 -lstdc++ -lm -lpthread -lpthread -L/usr/local/google/home/blaikie/dev/llvm/build/clang/debug/split/notypes/nostandalone/./lib/clang/5.0.0/lib/linux -lclang_rt.xray-x86_64 -latomic -ldl -lrt</div><div>/usr/local/google/home/blaikie/install/bin/../lib/gcc/x86_64-pc-linux-gnu/6.1.0/../../../../include/c++/6.1.0/system_error:197: error: undefined reference to 'std::_V2::generic_category()'</div><div>/usr/local/google/home/blaikie/install/bin/../lib/gcc/x86_64-pc-linux-gnu/6.1.0/../../../../include/c++/6.1.0/system_error:197: error: undefined reference to 'std::_V2::generic_category()'</div><div>/usr/local/google/home/blaikie/install/bin/../lib/gcc/x86_64-pc-linux-gnu/6.1.0/../../../../include/c++/6.1.0/system_error:141: error: undefined reference to 'std::_V2::system_category()'</div><div>/usr/local/google/home/blaikie/install/bin/../lib/gcc/x86_64-pc-linux-gnu/6.1.0/../../../../include/c++/6.1.0/system_error:141: error: undefined reference to 'std::_V2::system_category()'</div><div>/usr/local/google/home/blaikie/install/bin/../lib/gcc/x86_64-pc-linux-gnu/6.1.0/../../../../include/c++/6.1.0/system_error:197: error: undefined reference to 'std::_V2::generic_category()'</div><div>/usr/local/google/home/blaikie/install/bin/../lib/gcc/x86_64-pc-linux-gnu/6.1.0/../../../../include/c++/6.1.0/system_error:141: error: undefined reference to 'std::_V2::system_category()'</div><div>/usr/local/google/home/blaikie/install/bin/../lib/gcc/x86_64-pc-linux-gnu/6.1.0/../../../../include/c++/6.1.0/system_error:197: error: undefined reference to 'std::_V2::generic_category()'</div><span style="color:rgb(255,255,255);font-family:arial,sans-serif;font-size:13px;white-space:nowrap">Sudhir Rana</span><br></div>