Прошу добавить __gmpn_fft_best_k и __gmpn_mul_fft в libgmp.sym.
gmp-6.2.1-alt4 -> sisyphus: Fri Oct 29 2021 Leontiy Volodin <lvol@altlinux> 6.2.1-alt4 - Enabled visibility for __gmpn_fft_best_k and __gmpn_mul_fft, which are used in gmp-ecm (ALT#41248).