opentitan.v:23756: ERROR: syntax error, unexpected '(', expecting TOK_ID or '#' or '{'

[nicolast0604]

Yosys 0.14+6 (git sha1 c8903e705, gcc 7.5.0-3ubuntu1~18.04 -fPIC -Os)

-- Executing script file `build.ys' --

1. Executing Verilog-2005 frontend: opentitan.v
   Parsing Verilog input from `opentitan.v' to AST representation.
   Warning: Yosys has only limited support for tri-state logic at the moment. (opentitan.v:11690)
   Warning: Yosys has only limited support for tri-state logic at the moment. (opentitan.v:23016)
   Warning: Yosys has only limited support for tri-state logic at the moment. (opentitan.v:23017)
   Warning: Yosys has only limited support for tri-state logic at the moment. (opentitan.v:23018)
   Warning: Yosys has only limited support for tri-state logic at the moment. (opentitan.v:23045)
   Warning: Yosys has only limited support for tri-state logic at the moment. (opentitan.v:23047)
   Warning: Yosys has only limited support for tri-state logic at the moment. (opentitan.v:23048)
   Warning: Yosys has only limited support for tri-state logic at the moment. (opentitan.v:23049)
   Warning: Yosys has only limited support for tri-state logic at the moment. (opentitan.v:23050)
   Warning: Yosys has only limited support for tri-state logic at the moment. (opentitan.v:23051)
   Warning: Yosys has only limited support for tri-state logic at the moment. (opentitan.v:23052)
   Warning: Yosys has only limited support for tri-state logic at the moment. (opentitan.v:23053)
   Warning: Yosys has only limited support for tri-state logic at the moment. (opentitan.v:23054)
   Warning: Yosys has only limited support for tri-state logic at the moment. (opentitan.v:23055)
   Warning: Yosys has only limited support for tri-state logic at the moment. (opentitan.v:23056)
   Warning: Yosys has only limited support for tri-state logic at the moment. (opentitan.v:23057)
   Warning: Yosys has only limited support for tri-state logic at the moment. (opentitan.v:23058)
   Warning: Yosys has only limited support for tri-state logic at the moment. (opentitan.v:23059)
   Warning: Yosys has only limited support for tri-state logic at the moment. (opentitan.v:23060)
   Warning: Yosys has only limited support for tri-state logic at the moment. (opentitan.v:23061)
   Warning: Yosys has only limited support for tri-state logic at the moment. (opentitan.v:23062)
   Warning: Yosys has only limited support for tri-state logic at the moment. (opentitan.v:23071)
   opentitan.v:23756: ERROR: syntax error, unexpected '(', expecting TOK_ID or '#' or '{'

Could you please give me any hint?
Thanks a lot.

[nicolast0604]

23752 wire oe;
23753 wire out;
23754 assign out = out_i ^ inv;
23755 assign oe = oe_i & ((od & ~out) | ~od);
23756 assign (strong0, strong1) inout_io = (oe && (drv == 1'b0) ? out : 1'bz);
23757 assign (pull0, pull1) inout_io = (oe && (drv == 1'b1) ? out : 1'bz);
23758 assign (highz0, weak1) inout_io = pu;
23759 assign (weak0, highz1) inout_io = ~pd;
23760 assign (weak0, weak1) inout_io = (kp ? inout_io : 1'bz);
23761 endmodule
23762 module tlul_adapter_sram (