Merge pull request #1518 from joto/required-libs

Required libs

Author: lonvia

CMakeLists.txt

@@ -190,7 +190,7 @@ endif()
 
 include_directories(${CMAKE_CURRENT_SOURCE_DIR}/src ${CMAKE_CURRENT_BINARY_DIR})
 
-find_package(Osmium 2.15.6 REQUIRED COMPONENTS io)
+find_package(Osmium 2.17.0 REQUIRED COMPONENTS io)
 include_directories(SYSTEM ${OSMIUM_INCLUDE_DIRS} ${PROTOZERO_INCLUDE_DIR} ${FMT_INCLUDE_DIR} ${RAPIDJSON_INCLUDE_DIR})
 
 if (WITH_LUA)

README.md

@@ -56,6 +56,15 @@ Required libraries are
 * [Python](https://python.org/) (only for running tests)
 * [Psycopg](http://initd.org/psycopg/) (only for running tests)
 
+The following libraries are included in the `contrib` directory. You can build
+with other versions of those libraries (set the `EXTERNAL_*libname*` option to
+`ON`) but make sure you are using a compatible version:
+
+* [fmt](https://fmt.dev/) (>= 7.1.3)
+* [libosmium](https://osmcode.org/libosmium/) (>= 2.17.0)
+* [protozero](https://github.com/mapbox/protozero) (>= 1.6.3)
+* [rapidjson](https://rapidjson.org/) (>= 1.1.0)
+
 It also requires access to a database server running
 [PostgreSQL](https://www.postgresql.org/) 9.5+ and
 [PostGIS](http://www.postgis.net/) 2.2+.