As mentioned earlier, usage of Extended BLAS APIs is enabled by
setting ENABLE_AMD_FLAGS or ENABLE_AMD_AOCC_FLAGS to ON. If
there is a need to disable this feature, CMake option of
ENABLE_BLAS_EXT_GEMMT can be used:
$ cmake -DENABLE_AMD_FLAGS=ON -DENABLE_BLAS_EXT_GEMMT=OFF ...