Support cross-compilation by setting CC and CXX in Makevars.in (Jeroen Ooms in #1)
Support pre-release 4.0.0 of cmake by moving the minimum
stated version from 3.1 to 3.5 per CRAN request, also sent PR upstream
Explicitly set cmake property for position-independent code
Help macOS find its cmake binary as detailed also in WRE
Help Windows with a non-conditional Makevars.win pointing at cmake
Add more badges to README.md
Initial release version and CRAN upload