Manually Install Swig 4.0.2 from Github on CI #705
Merged
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Closes #697
Swig occasionally fails to download from sourceforge on CI jobs, but github based Swig releases require
yacc
, which we don't want to add as an additional dependency to regular builds.By installing
bison
fromapt
(foryacc
) and building Swig 4.0.2 from GitHub on CI prior to CMake, this should hopefully make CI more robust.This is not viable for Windows CI workflows, not neccesary for lint/docs work flows, and not neccessary for manylinux workflows where the manylinux container used already contains very recent swig.