I followed all the steps and they completed without errors. But during compilation, I get this error:

Code
In file included from /Users/charel/bletchmame/lib/quazip/unzip.cpp:202:
/Users/charel/bletchmame/lib/quazip/minizip_crypt.h:57:7: error: ISO C++17 does not allow 'register'
      storage class specifier [-Wregister]
      register int keyshift = (int)((*(pkeys+1)) >> 24);
      ^~~~~~~~~
1 error generated.
make[2]: *** [CMakeFiles/QuaZip.dir/lib/quazip/unzip.cpp.o] Error 1
make[1]: *** [CMakeFiles/QuaZip.dir/all] Error 2
make: *** [all] Error 2