There were no ERRORs or WARNINGs.
There were 2 NOTEs:
- checking installed package size ... NOTE installed size is 14.1Mb sub-directories of 1Mb or more: libs 13.9Mb
The websocketpp C++ library is several megabytes in size, so this is unavoidable.
- GNU make is a SystemRequirements.
GNU syntax += is used in Makevars.in to append to the PKG_LIBS variable.