trip was first so use this to map out the strategy
# packages potentially affected (others possible depending on what's used )
pat <- "sp|raster|geosphere|spbabel|rgdal|spex|rgdal"
x <- tibble::as_tibble(tools::CRAN_package_db())
library(dplyr)
x %>% filter(grepl("Sumner", Maintainer) & ( grepl(pat, Depends) | grepl(pat, Imports) | grepl(pat, Suggests))) %>% select(Package)
trip was first so use this to map out the strategy