On both recent CURRENT and 12-STABLE, compiling port graphics/gdal fails with the error shown below while updating an existing port. Ports tree is at r523900, procedure is portmaster -da. [...] c++ -I/usr/ports/graphics/gdal/work/gdal-3.0.3/port -I/usr/ports/graphics/gdal/work/gdal-3.0.3/gcore -I/usr/ports/graphics/gdal/work/gdal-3.0.3/alg -I/usr/ports/graphics/gdal/work/gdal-3.0.3/ogr -I/usr/ports/graphics/gdal/work/gdal-3.0.3/ogr/ogrsf_frmts -I/usr/ports/graphics/gdal/work/gdal-3.0.3/gnm -I/usr/ports/graphics/gdal/work/gdal-3.0.3/apps -DHAVE_AVX_AT_COMPILE_TIME -DHAVE_SSSE3_AT_COMPILE_TIME -DHAVE_SSE_AT_COMPILE_TIME -O2 -pipe -fPIC -DLIBICONV_PLUG -fstack-protector-strong -isystem /usr/local/include -fno-strict-aliasing -DLIBICONV_PLUG -isystem /usr/local/include -std=c++11 -fPIC -Wall -Wextra -Winit-self -Wunused-parameter -Wformat -Werror=format-security -Wno-format-nonliteral -Wshorten-64-to-32 -Wshadow -Werror=vla -Wdate-time -Wnull-dereference -Wextra-semi -Wcomma -Wfloat-conversion -Wdocumentation -Wno-documentation-deprecated-sync -Wunused-private-field -Wmissing-prototypes -Wmissing-declarations -Wnon-virtual-dtor -Woverloaded-virtual -fno-operator-names -Wzero-as-null-pointer-constant -Wimplicit-fallthrough -I/usr/ports/graphics/gdal/work/gdal-3.0.3/frmts/vrt -DGNM_ENABLED -DLIBICONV_PLUG -I/usr/local/include -isystem /usr/local/include -I/usr/ports/graphics/gdal/work/gdal-3.0.3/port -I/usr -I/usr/include -DGDAL_COMPILATION -I/usr/local/include/json-c -I/usr/ports/graphics/gdal/work/gdal-3.0.3/ogr/ogrsf_frmts/geojson -I/usr/ports/graphics/gdal/work/gdal-3.0.3/ogr/ogrsf_frmts/generic -I/usr/ports/graphics/gdal/work/gdal-3.0.3/gnm -c -o gdallocationinfo.o gdallocationinfo.cpp c++ -L/usr/local/lib -fstack-protector-strong gdallocationinfo.o -L/usr/ports/graphics/gdal/work/gdal-3.0.3 -lgdal -lcrypto -ljson-c -lsqlite3 -ljasper -lgif -ljpeg -lgeotiff -ltiff -lpng -lcfitsio -L/usr/local/lib -lpq -llzma -lproj -lz -L/usr -L/usr/lib -lpthread -lm -lrt -ldl -L/usr/local/lib -L/usr/local/lib -lxml2 -lz -L/usr/lib -llzma -L/usr/lib -lm -o gdallocationinfo ld: error: undefined symbol: OSRSetAxisMappingStrategy >>> referenced by gdallocationinfo.cpp >>> gdallocationinfo.o:(main) ld: error: undefined symbol: GDALGetSpatialRef >>> referenced by gdallocationinfo.cpp >>> gdallocationinfo.o:(main) c++: error: linker command failed with exit code 1 (use -v to see invocation) gmake[3]: *** [GNUmakefile:136: gdallocationinfo] Error 1 gmake[3]: Leaving directory '/usr/ports/graphics/gdal/work/gdal-3.0.3/apps' gmake[2]: *** [GNUmakefile:112: apps-target] Error 2 gmake[2]: Leaving directory '/usr/ports/graphics/gdal/work/gdal-3.0.3' *** Error code 1
Confirmed with make -C /usr/ports/graphics/gdal clean build install. As usual with this port, the solution is make -C /usr/ports/graphics/gdal deinstall clean build install
Just like Loïc said, please remove the old one and build/install the new one.