giac fails to build (clang/clang++)

[vdelecroix]

duplicate of #25324

solve.cc:5751:23: error: non-constant-expression cannot be narrowed from type 'int' to 'short' in initializer list [-Wc++11-narrowing]
      order_t order_={order,lexvars};
                      ^~~~~
solve.cc:5751:23: note: insert an explicit cast to silence this issue
      order_t order_={order,lexvars};
                      ^~~~~
                      static_cast<short>( )
solve.cc:5751:29: error: non-constant-expression cannot be narrowed from type 'int' to 'unsigned char' in initializer list [-Wc++11-narrowing]
      order_t order_={order,lexvars};
                            ^~~~~~~
solve.cc:5751:29: note: insert an explicit cast to silence this issue
      order_t order_={order,lexvars};
                            ^~~~~~~
                            static_cast<unsigned char>( )
solve.cc:6962:21: error: non-constant-expression cannot be narrowed from type 'int' to 'short' in initializer list [-Wc++11-narrowing]
    order_t order_={order.val,0};
                    ^~~~~~~~~
solve.cc:6962:21: note: insert an explicit cast to silence this issue
    order_t order_={order.val,0};
                    ^~~~~~~~~
                    static_cast<short>( )

See also ​this message on sage-devel

[dimpase]

You need giac 1.5 on recent clangs. Please look up the giac upgrade ticket

[dimpase]

see #26315 for a tentative fix (with giac 1.5).