Hi Chris,

I running across some errors and I was hoping you could help.

I cloned both repos (ANTS and Niftyreg) into our home directory, created the build folders, but ran into an error for niftyreg:

 corelabadmin@Corelab-Mac-Studio01-PRD build % make
[  1%] Building CXX object reg-lib/CMakeFiles/_reg_maths.dir/cpu/Maths.cpp.o
clang++: error: unsupported option '-msse3' for target 'arm64-apple-darwin25.5.0'
make[2]: *** [reg-lib/CMakeFiles/_reg_maths.dir/cpu/Maths.cpp.o] Error 1
make[1]: *** [reg-lib/CMakeFiles/_reg_maths.dir/all] Error 2
make: *** [all] Error 2
corelabadmin@Corelab-Mac-Studio01-PRD build % cd ..
corelabadmin@Corelab-Mac-Studio01-PRD niftyreg % cd ..

I suspect that it is anticipating x86 architecture instead of the more recent ARM architecture on Mac computers.

Any help that can be provided would be appreciated.