I had to make these changes to parallella_base in order to create a headless_e16_z7020 bitstream using Vivado 2017.4, which would otherwise bail on syntax errors.
% file ./system.runs/impl_1/system_wrapper.bit
./system.runs/impl_1/system_wrapper.bit: Xilinx BIT data - from > system_wrapper;UserID=0XFFFFFFFF;Version=2017.4 - for 7z020clg400 - built 2018/02/04(18:45:51) - data length 0x3dbafc`
I had to make these changes to parallella_base in order to create a headless_e16_z7020 bitstream using Vivado 2017.4, which would otherwise bail on syntax errors.
Tested: