Dear igraph maintainers!
I am maintainer of an R package (sfnetworks) that depends on igraph. I have been contacted by CRAN that I am “using a optional feature of igraph, one that the igraph maintainer has broken the detection of on macOS”. I have looked through all recent igraph changelogs and cannot find anything that mentions something like that.
Given the warnings resulting from the CRAN checks on MacOS (CRAN Package Check Results for Package sfnetworks) it seems to me the issue relates to support for reading GraphML files:
At foreign-graphml.c:1446 : GraphML support is disabled, Unimplemented function call
My question is: is it true that, as stated by CRAN, support for GraphML is recently disabled on MacOS by the igraph maintainers? The only thing I can find about it relates to Windows and not MacOS: Reading GraphML files not enables · Issue #32 · conda-forge/python-igraph-feedstock · GitHub If yes, should this be mentioned somewhere in the igraph changelogs?