proj source package in Huanghe V3.0
libproj-dev: Cartographic projection library (development files)
libproj25: Cartographic projection library
libproj25-dbgsym: debug symbols for libproj25
proj-bin: Cartographic projection library (tools)
proj-bin-dbgsym: debug symbols for proj-bin
proj-data: Cartographic projection filter and library (datum package)