/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++  -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk -bundle -Wl,-headerpad_max_install_names -Xlinker -undefined -Xlinker dynamic_lookup -flto -o Diffusivity.cpython-39-darwin.so CMakeFiles/Diffusivity.dir/diffusivity.cpp.o