Hi I am try create static library from yaml-cpp.
Windows x64 to use in my own project
I did next steps:
Clone repo prepare build dir and move to it

mkdir build
cd build

Configure Cmake in different variants:
1)

cmake -G "MinGW Makefiles" -DYAML_BUILD_SHARED_LIBS=OFF -DCMAKE_INSTALL_PREFIX=../for_D7 ..

cmake -G "MinGW Makefiles" -DYAML_BUILD_SHARED_LIBS=OFF -DCMAKE_INSTALL_PREFIX=../for_D7 -DYAML_CPP_BUILD_CONTRIB=ON -DYAML_CPP_BUILD_TOOLS=ON -DCMAKE_CXX_STANDARD=17 -DCMAKE_CXX_FLAGS="-std=c++17" ..

Execute building

cmake --build . --config Release --target install

And and try same shit for using MSVC.
I`v got for one case yaml-cpp.lib (when i try ti get it with MSVC) andd libyaml-cpp.a (for MinGW)

I try to use both of them in my app.
This is how in my main.cpp:

if (argc == 2 && (strstr(argv[1], ".yaml") != NULL)) {
       char* file_folder;
       char* file_name;
       char* mode;
       char* dll_folder;
       char* dll_name;
       int chunk_len;
       int port;
       
       try {
           YAML::Node config = YAML::LoadFile(argv[1]);
           if (config["sample_source"]) {
               YAML::Node sample_source = config["sample_source"];
               if (sample_source["file_folder_env_var"]) {
                   const char* ts = sample_source["file_folder_env_var"].as<std::string>().c_str();
                   file_folder = get_env_variable(ts);
                   if (file_folder == NULL) {
                       file_folder = (char*)DEFAULT_SIGNAL_DATA_PATH;
                   }
               } else {
                   file_folder = (char*)"NOT SET";
               }

               if (sample_source["file_name"]) {
                   file_name = (char*)sample_source["file_name"].as<std::string>().c_str();
               } else {
                   file_name = (char*)"NOT SET";
               }

               if (sample_source["mode"]) {
                   mode = (char*)sample_source["mode"].as<std::string>().c_str();
               } else {
                   mode = (char*)"NOT SET";
               }

               if (sample_source["rtlsdr_dll"]["path"]) {
                   dll_folder = (char*)sample_source["rtlsdr_dll"]["path"].as<std::string>().c_str();
               } else {
                   dll_folder = (char*)"NOT SET";
               }

               if (sample_source["rtlsdr_dll"]["file"]) {
                   dll_name = (char*)sample_source["rtlsdr_dll"]["file"].as<std::string>().c_str();
               } else {
                   dll_name = (char*)"NOT SET";
               }

               if (sample_source["port"]) {
                   port = sample_source["port"].as<int>();
               } else {
                   port = -1;
               }

               if (sample_source["chunk_len"]) {
                   chunk_len = sample_source["chunk_len"].as<int>();
               } else {
                   chunk_len = -1;
               }

               printf("Mode: %sn", mode);
               printf("File path: %sn", file_folder);
               printf("File name: %sn", file_name);
               printf("DLL path: %sn", dll_folder);
               printf("DLL name: %sn", dll_name);
               printf("Port: %dn", port);
               printf("Chunk len: %dn", chunk_len);
           }
       } 
       catch (const std::exception& ex) {
           printf("Error: %sn", ex.what());
           return -1;
       }
       return 0;
   }

My app compiled – i get object files. Compile in that way:

gcc -c -g -D_DEBUG -D_D7 -std=c++17 -Iexternal_binariesyaml-cppinclude -Iexternal_binariesffftw3.3.5_x64 -Iinclude srcrtl-sdr-wrapperwrapper.cpp srcrtl-sdr-wrapperrcv_test.cpp srccommon.cpp srcmain.cpp

But linkage fails

g++ -o build/release/spectro_mk2.exe wrapper.o rcv_test.o common.o main.o -L"external_binariesyaml-cpplib" -L"external_binariesffftw3.3.5_x64" -lyaml -llibfftw3-3 -lws2_32

Output is too large but in breef It couldnt find some symbols. I make check like this:

nm libyaml-cpp.a > symbols.txt
findstr "__imp__ZN4YAML8LoadFileERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE" symbols.txt
findstr "__imp__ZTVN4YAML9ExceptionE" symbols.txt
findstr "__imp__ZN4YAML6detail6memory11create_nodeEv" symbols.txt
findstr "__imp__ZN4YAML11InvalidNodeD1Ev" symbols.txt
findstr "__imp__ZN4YAML23RepresentationExceptionE" symbols.txt
findstr "__imp__ZN4YAML13BadConversionE" symbols.txt
findstr "__imp__ZN4YAML6detail9node_data12empty_scalarB5cxx11Ev" symbols.txt
findstr "__imp__ZN4YAML12BadSubscriptE" symbols.txt
findstr "__imp__ZN4YAML6detail13memory_holder5mergeERS1_" symbols.txt

No such symbols
Same trouble when i try use static library made by MSVC – same linker errors

I`am very new to all that CMake stuff))
@JesseBeder

I wait for help with usage if that exact lib
And be grateful for explain how that CMake stuff work in coomon cocept