Error compiling on MacOS

[snuntz]

I'm trying to compile the last code
In MacOS 10.15.7 Catalina stopped at this point:

[ 18%] Building C object lib/graphics_engine/CMakeFiles/graphics_engine.dir/src/gl.c.o
[ 18%] Building CXX object lib/graphics_engine/CMakeFiles/graphics_engine.dir/src/ge_compressor_astc_4x4.cpp.o
/Users/Mini7Server/stk-code/lib/graphics_engine/src/ge_compressor_astc_4x4.cpp:40:9: error:
use of undeclared identifier 'SDL_HasSSE41'
if (SDL_HasSSE41() == SDL_FALSE)
^
1 error generated.
make[2]: *** [lib/graphics_engine/CMakeFiles/graphics_engine.dir/src/ge_compressor_astc_4x4.cpp.o] Error 1
make[1]: *** [lib/graphics_engine/CMakeFiles/graphics_engine.dir/all] Error 2
make: *** [all] Error 2

thanks if someone help me