Compilation error using gcc 10.3

[tgakay]

Hi,
I'm trying to compile tblis-strassen on a Linux box using gcc/g++ 10.3 but I get the following errors

$ CC=gcc CXX=g++ ./configure --enable-config=sandybridge --disable-shared
...
$ make V=1
make  all-recursive
make[1]: Entering directory `/home/yakovlev/Programs/tblis-strassen'
Making all in src/external/tci
make[2]: Entering directory `/home/yakovlev/Programs/tblis-strassen/src/external/tci'
make[2]: Nothing to be done for `all'.
make[2]: Leaving directory `/home/yakovlev/Programs/tblis-strassen/src/external/tci'
make[2]: Entering directory `/home/yakovlev/Programs/tblis-strassen'
depbase=`echo src/stra_internal/3t/stra_mult.lo | sed 's|[^/]*$|.deps/&|;s|\.lo$||'`;\
/bin/sh ./libtool  --tag=CXX   --mode=compile g++ -DHAVE_CONFIG_H -I.  -I. -I./src -I. -Isrc -Isrc/util -I./src/external/tci -Isrc/external/tci/tci   -O3 -MT src/stra_internal/3t/stra_mult.lo -MD -MP -MF $depbase.Tpo -c -o src/stra_internal/3t/stra_mult.lo src/stra_internal/3t/stra_mult.cxx &&\
mv -f $depbase.Tpo $depbase.Plo
libtool: compile:  g++ -DHAVE_CONFIG_H -I. -I. -I./src -I. -Isrc -Isrc/util -I./src/external/tci -Isrc/external/tci/tci -O3 -MT src/stra_internal/3t/stra_mult.lo -MD -MP -MF src/stra_internal/3t/.deps/stra_mult.Tpo -c src/stra_internal/3t/stra_mult.cxx -o src/stra_internal/3t/stra_mult.o
In file included from src/stra_internal/3t/stra_mult.cxx:8:
./src/stra_nodes/stra_matrify.hpp: In instantiation of ‘tblis::stra_matrify_and_run<1>::stra_matrify_and_run(Parent&, const tci::communicator&, const tblis::config&, T, MatrixA&, MatrixB&, T, MatrixC&) [with T = float; Parent = tblis::stra_matrify<1, tblis::internal::BuffersForB, tblis::stra_pack<1, tblis::internal::BuffersForB, tblis::stra_partition<0, &tblis::config::gemm_mc, tblis::stra_matrify_and_pack<0, tblis::internal::BuffersForA, tblis::stra_matrify<2, tblis::internal::BuffersForScatter, tblis::stra_partition<1, &tblis::config::gemm_nr, tblis::stra_partition<0, &tblis::config::gemm_mr, tblis::stra_gemm_micro_kernel> > > > > > >; MatrixA = tblis::stra_tensor_view<float, 2>; MatrixB = tblis::stra_tensor_view<float, 2>; MatrixC = tblis::stra_tensor_view<float, 2>]’:
./src/stra_nodes/stra_matrify.hpp:341:9:   required from ‘void tblis::stra_matrify<Mat, Pool, Child>::operator()(const tci::communicator&, const tblis::config&, T, MatrixA&, MatrixB&, T, MatrixC&) [with T = float; MatrixA = tblis::stra_tensor_view<float, 2>; MatrixB = tblis::stra_tensor_view<float, 2>; MatrixC = tblis::stra_tensor_view<float, 2>; int Mat = 1; tblis::MemoryPool& Pool = tblis::internal::BuffersForB; Child = tblis::stra_pack<1, tblis::internal::BuffersForB, tblis::stra_partition<0, &tblis::config::gemm_mc, tblis::stra_matrify_and_pack<0, tblis::internal::BuffersForA, tblis::stra_matrify<2, tblis::internal::BuffersForScatter, tblis::stra_partition<1, &tblis::config::gemm_nr, tblis::stra_partition<0, &tblis::config::gemm_mr, tblis::stra_gemm_micro_kernel> > > > > >]’
./src/stra_nodes/stra_partm.hpp:97:18:   recursively required from ‘void tblis::stra_partition<Dim, BS, Child>::operator()(const tci::communicator&, const tblis::config&, T, MatrixA&, MatrixB&, T, MatrixC&) [with T = float; MatrixA = tblis::stra_tensor_view<float, 2>; MatrixB = tblis::stra_tensor_view<float, 2>; MatrixC = tblis::stra_tensor_view<float, 2>; int Dim = 2; tblis::blocksize tblis::config::* BS = &tblis::config::gemm_kc; Child = tblis::stra_matrify_and_pack<1, tblis::internal::BuffersForB, tblis::stra_partition<0, &tblis::config::gemm_mc, tblis::stra_matrify_and_pack<0, tblis::internal::BuffersForA, tblis::stra_matrify<2, tblis::internal::BuffersForScatter, tblis::stra_partition<1, &tblis::config::gemm_nr, tblis::stra_partition<0, &tblis::config::gemm_mr, tblis::stra_gemm_micro_kernel> > > > > >]’
./src/stra_nodes/stra_partm.hpp:97:18:   required from ‘void tblis::stra_partition<Dim, BS, Child>::operator()(const tci::communicator&, const tblis::config&, T, MatrixA&, MatrixB&, T, MatrixC&) [with T = float; MatrixA = tblis::stra_tensor_view<float, 2>; MatrixB = tblis::stra_tensor_view<float, 2>; MatrixC = tblis::stra_tensor_view<float, 2>; int Dim = 1; tblis::blocksize tblis::config::* BS = &tblis::config::gemm_nc; Child = tblis::stra_partition<2, &tblis::config::gemm_kc, tblis::stra_matrify_and_pack<1, tblis::internal::BuffersForB, tblis::stra_partition<0, &tblis::config::gemm_mc, tblis::stra_matrify_and_pack<0, tblis::internal::BuffersForA, tblis::stra_matrify<2, tblis::internal::BuffersForScatter, tblis::stra_partition<1, &tblis::config::gemm_nr, tblis::stra_partition<0, &tblis::config::gemm_mr, tblis::stra_gemm_micro_kernel> > > > > > >]’
src/stra_internal/3t/stra_mult.cxx:441:18:   required from ‘void tblis::internal::stra_contract_blis(const tci::communicator&, const tblis::config&, const std::vector<long int>&, const std::vector<long int>&, const std::vector<long int>&, T, const T*, const std::vector<long int>&, const std::vector<long int>&, const T*, const std::vector<long int>&, const std::vector<long int>&, T, T*, const std::vector<long int>&, const std::vector<long int>&) [with T = float]’
src/stra_internal/3t/stra_mult.cxx:622:1:   required from here
./src/stra_nodes/stra_matrify.hpp:218:52: error: ‘B’ is not a constant expression
  218 |         stra_block_scatter_matrix<T, stra_size(B)> M(B.length(0), B.length(1), buf, coeff,
      |                                                    ^
./src/stra_nodes/stra_matrify.hpp:218:47: note: in template argument for type ‘unsigned int’
  218 |         stra_block_scatter_matrix<T, stra_size(B)> M(B.length(0), B.length(1), buf, coeff,
      |                                      ~~~~~~~~~^~~
./src/stra_nodes/stra_matrify.hpp:218:52: error: ‘B’ is not a constant expression
  218 |         stra_block_scatter_matrix<T, stra_size(B)> M(B.length(0), B.length(1), buf, coeff,
      |                                                    ^
./src/stra_nodes/stra_matrify.hpp:218:47: note: in template argument for type ‘unsigned int’
  218 |         stra_block_scatter_matrix<T, stra_size(B)> M(B.length(0), B.length(1), buf, coeff,
      |                                      ~~~~~~~~~^~~

This error is repeated multiple times.

Do you have any suggestions how to get around it?
Kind regards,
Alexei