anchor.diff:        BINARY = 64;
         TARGET = setTarget "ATHLON";
         DYNAMIC_ARCH = setDynamicArch true;
  +      NO_AVX512 = !enableAVX512;
         USE_OPENMP = !stdenv.hostPlatform.isMusl;
       };
   
  
positive.code: , target ? null
  # Select whether DYNAMIC_ARCH is enabled or not.
  , dynamicArch ? null
  , enableStatic ? stdenv.hostPlatform.isStatic
  , enableShared ? !stdenv.hostPlatform.isStatic
  }:
  
negative.code:       BINARY = 64;
        TARGET = setTarget "ATHLON";
        DYNAMIC_ARCH = setDynamicArch true;
        NO_AVX512 = !enableAVX512;
        USE_OPENMP = false;
        MACOSX_DEPLOYMENT_TARGET = "10.7";
      };
  