We have a mixed environment (with Windows and Linux) where builds run from the same (networked) workspace on different platforms.
This works best if the Perforce clientspecs/workspaces have "LineEnd: share" instead of the default "local", which we manage ourselves by changing the clientspec and resyncing the files (takes double the time).
I suggest to add an option in the plugin configuration to set the LineEnd value, much like the way we can set "Options".