在按照github上的mapnik源码构建的教程走的时候,在make阶段出错
(base) alex@alex-pc:~/mapnik$ make
## then install the rest with -j1
scons/scons.py -j1 --config=cache --implicit-cache --max-drift=1
scons: Reading SConscript files ...
Using previous successful configuration...
Re-configure by running "python scons/scons.py configure".
Welcome to Mapnik...
scons: done reading SConscript files.
scons: Building targets ...
c++ -o plugins/input/gdal/gdal_datasource.os -c -std=c++17 -DU_USING_ICU_NAMESPACE=0 -fvisibility=hidden -fvisibility-inlines-hidden -Wall -pthread -ftemplate-depth-300 -Wsign-compare -O3 -fPIC -DBOOST_PHOENIX_STL_TUPLE_H_ -DMAPNIK_MEMORY_MAPPED_FILE -DMAPNIK_HAS_DLCFN -DBIGINT -DBOOST_REGEX_HAS_ICU -DHAVE_JPEG -DMAPNIK_USE_PROJ -DMAPNIK_PROJ_VERSION=80201 -DHAVE_PNG -DHAVE_WEBP -DHAVE_TIFF -DLINUX -DMAPNIK_THREADSAFE -DBOOST_SPIRIT_NO_PREDEFINED_TERMINALS=1 -DBOOST_PHOENIX_NO_PREDEFINED_TERMINALS=1 -DBOOST_SPIRIT_USE_PHOENIX_V3=1 -DNDEBUG -Ideps -Ideps/mapbox/polylabel/include -Ideps/mapbox/protozero/include -Ideps/mapbox/geometry/include -Ideps/mapbox/variant/include -Ideps/agg/include -Iinclude -I/home/alex/anaconda3/include -I/usr/local/include -I/usr/include -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/gdal plugins/input/gdal/gdal_datasource.cpp
c++ -o utils/mapnik-index/mapnik-index utils/mapnik-index/mapnik-index.o utils/mapnik-index/process_csv_file.o utils/mapnik-index/process_geojson_file_x3.o plugins/input/csv/csv_utils.os -Ldeps/agg -Lsrc -Lsrc/json -Lsrc/wkt -Lfreetype -L/home/alex/anaconda3/lib -L/usr/local/lib -L/usr/lib -lmapnik -lboost_program_options -lmapnik-json -lmapnik-wkt -licuuc
/usr/bin/ld: warning: libicui18n.so.73, needed by src/libmapnik.so, not found (try using -rpath or -rpath-link)
/usr/bin/ld: src/libmapnik.so: undefined reference to `icu_73::Collator::createInstance(icu_73::Locale const&, UErrorCode&)'
collect2: error: ld returned 1 exit status
scons: *** [utils/mapnik-index/mapnik-index] Error 1
scons: building terminated because of errors.
make: *** [Makefile:48:mapnik] error 2
这是缺少libicui18n.so.73这个吗,我看了下,在lib里是有libicui18n.so.74的,没有73,但是我想着用ln做个链接,结果会报libicuuc.so.73的错。