Compiling on linux

[jgrocha]

Compiling on Linux

With PDAL current master, I'm not able to compile wrench.

jgr@dragon:~/dev/cpp/wrench/build$ make
[  4%] Building CXX object CMakeFiles/pdal_wrench.dir/src/main.cpp.o
[  8%] Building CXX object CMakeFiles/pdal_wrench.dir/src/alg.cpp.o
[ 13%] Building CXX object CMakeFiles/pdal_wrench.dir/src/boundary.cpp.o
[ 17%] Building CXX object CMakeFiles/pdal_wrench.dir/src/clip.cpp.o
[ 21%] Building CXX object CMakeFiles/pdal_wrench.dir/src/density.cpp.o
[ 26%] Building CXX object CMakeFiles/pdal_wrench.dir/src/info.cpp.o
[ 30%] Building CXX object CMakeFiles/pdal_wrench.dir/src/merge.cpp.o
[ 34%] Building CXX object CMakeFiles/pdal_wrench.dir/src/thin.cpp.o
[ 39%] Building CXX object CMakeFiles/pdal_wrench.dir/src/to_raster.cpp.o
[ 43%] Building CXX object CMakeFiles/pdal_wrench.dir/src/to_raster_tin.cpp.o
[ 47%] Building CXX object CMakeFiles/pdal_wrench.dir/src/to_vector.cpp.o
[ 52%] Building CXX object CMakeFiles/pdal_wrench.dir/src/translate.cpp.o
[ 56%] Building CXX object CMakeFiles/pdal_wrench.dir/src/utils.cpp.o
[ 60%] Building CXX object CMakeFiles/pdal_wrench.dir/src/vpc.cpp.o
In file included from /home/jgr/dev/cpp/wrench/src/vpc.cpp:26:
/home/jgr/dev/cpp/wrench/src/nlohmann/json.hpp:19340:38: error: reference to 'json_pointer' is ambiguous
 19340 |     using json_pointer = ::nlohmann::json_pointer<StringType>;
       |                                      ^
/usr/local/include/pdal/JsonFwd.hpp:45:7: note: candidate found by name lookup is 'nlohmann::json_pointer'
   45 | class json_pointer;
      |       ^
/home/jgr/dev/cpp/wrench/src/nlohmann/json.hpp:13716:7: note: candidate found by name lookup is 'nlohmann::json_abi_v3_11_2::json_pointer'
 13716 | class json_pointer
       |       ^
/home/jgr/dev/cpp/wrench/src/nlohmann/json.hpp:21542:39: error: reference to 'json_pointer' is ambiguous
 21542 |     ValueType value(const ::nlohmann::json_pointer<BasicJsonType>& ptr, const ValueType& default_value) const
       |                                       ^
/usr/local/include/pdal/JsonFwd.hpp:45:7: note: candidate found by name lookup is 'nlohmann::json_pointer'
   45 | class json_pointer;
      |       ^
/home/jgr/dev/cpp/wrench/src/nlohmann/json.hpp:13716:7: note: candidate found by name lookup is 'nlohmann::json_abi_v3_11_2::json_pointer'
 13716 | class json_pointer

Compiling instructions

mkdir build; cd build
cmake -DPDAL_DIR=/usr/local/lib/cmake/PDAL ..
make

[NiekFi]

Similar issue here, I built with:
cmake -G Ninja ..

I've tried including my own library for nlohmann with:
apt install nlohmann-json3-dev

[danielrode]

I am able to compile it fine in a container. See my Dockerfile definition for which dependencies I added before building:
https://github.com/VogelerLab/PDAL_wrench/blob/main/Dockerfile