Does Quartus II integrated synthesis support nested ifndef statements in Verilog HDL? - Does Quartus II integrated synthesis support nested ifndef statements in Verilog HDL? Description No, Quartus® II integrated synthesis version 11.1 SP2 and earlier does not support nested ifndef statements in Verilog HDL. Using nested ifndef statements may result in Verilog HDL or syntax errors during Quartus II integrated synthesis. Resolution To avoid these errors, do not use nested`ifdef or`ifndef statements in Verilog HDL with Quartus II integrated synthesis. This problem is fixed beginning with the Quartus II software version 12.0. Custom Fields values: ['novalue'] Troubleshooting novalue False ['novalue'] ['FPGA Dev Tools Quartus II Software'] 12.0 novalue ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']