Add madgraph5amc-3.1.1.atlas based on madgraph5amc-3.1.1 with patch from... (!874) · Merge requests · sft / lcgcmake

Add madgraph5amc-3.1.1.atlas based on madgraph5amc-3.1.1 with patch from madgraph5amc-2.9.3 and additional patch from SPI-1945

Mentions SPI-1945

Add madgraph5amc-3.1.1.atlas based on madgraph5amc-3.1.1 with patch from...