Help needed to build a simple example under Windows

[mmaypo]

brand new to otel-cpp, and tried to build otel-cpp under windows 10 VS2022 v17.14.9 using DLLs with:

original goal was to build a simple test app that uses otel-cpp DLLs:

`#include
#include

#include "opentelemetry/exporters/otlp/otlp_http_exporter.h"
#include "opentelemetry/exporters/otlp/otlp_http_exporter_options.h"

namespace otlp = opentelemetry::exporter::otlp;
namespace sdktrace = opentelemetry::sdk::trace;

int main()
{
std::string otlp_endpoint = "http://localhost:4318/v1/traces"; // URL for your OTLP endpoint (local endpoint for example)

otlp::OtlpHttpExporterOptions opts;
opts.url = "http://localhost:4318/v1/traces";

auto exporter = std::make_shared<otlp::OtlpHttpExporter>(opts);

return 0;
}
`

so, first build otel-cpp:

cmake -DBUILD_TESTING=OFF -DWITH_EXAMPLES=OFF -DCMAKE_POSITION_INDEPENDENT_CODE=ON -DBUILD_SHARED_LIBS=ON -DWITH_OTLP_HTTP=ON -DWITH_OTLP_GRPC=OFF ..

and got a bunch of link errors:

LINK : fatal error LNK1104: cannot open file '..\common\Debug\opentelemetry_common.lib'
LINK : fatal error LNK1104: cannot open file '..\resource\Debug\opentelemetry_resources.lib'
LINK : fatal error LNK1104: cannot open file '....\sdk\src\logs\Debug\opentelemetry_logs.lib'
LINK : fatal error LNK1104: cannot open file '....\sdk\src\trace\Debug\opentelemetry_trace.lib'
...

so trying to make DLL's seems to be broken. i gave up without investigation and tried to build libs instead of DLLs

cmake -DBUILD_TESTING=OFF -DWITH_EXAMPLES=OFF -DWITH_OTLP_HTTP=ON -DWITH_OTLP_GRPC=OFF ..

got other, but fewer errors:

26>------ Build started: Project: func_otlp_http, Configuration: Debug x64 ------ 26>Building Custom Rule D:/dev/working/github/opentelemetry-cpp/functional/otlp/CMakeLists.txt 26>func_http_main.cc 26>libprotobufd.lib(descriptor.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(arena.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(arenastring.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(repeated_ptr_field.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(generated_message_util.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(message_lite.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(text_format.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(generated_message_reflection.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(message.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(stringpiece.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(common.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(coded_stream.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(wire_format_lite.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(parse_context.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(unknown_field_set.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(wire_format.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(repeated_field.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(strutil.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(descriptor.pb.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(tokenizer.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(stringprintf.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(substitute.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(descriptor_database.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(dynamic_message.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(strtod.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(any_lite.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(implicit_weak_message.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(zero_copy_stream.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(zero_copy_stream_impl_lite.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(extension_set.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(zero_copy_stream_impl.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(any.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(map_field.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(extension_set_heavy.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(reflection_ops.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(status.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(int128.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(structurally_valid.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(io_win32.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libprotobufd.lib(map.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: struct _Cvtvec __cdecl std::_Locinfo::_Getcvt(void)const " (?_Getcvt@_Locinfo@std@@QEBA?AU_Cvtvec@@XZ) already defined in libprotobufd.lib(descriptor.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: bool __cdecl std::ios_base::good(void)const " (?good@ios_base@std@@QEBA_NXZ) already defined in libprotobufd.lib(descriptor.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: int __cdecl std::ios_base::flags(void)const " (?flags@ios_base@std@@QEBAHXZ) already defined in libprotobufd.lib(descriptor.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: __int64 __cdecl std::ios_base::width(void)const " (?width@ios_base@std@@QEBA_JXZ) already defined in libprotobufd.lib(descriptor.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: __int64 __cdecl std::ios_base::width(__int64)" (?width@ios_base@std@@QEAA_J_J@Z) already defined in libprotobufd.lib(descriptor.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: int __cdecl std::basic_streambuf<char,struct std::char_traits<char> >::sputc(char)" (?sputc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHD@Z) already defined in libprotobufd.lib(descriptor.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: __int64 __cdecl std::basic_streambuf<char,struct std::char_traits<char> >::sputn(char const *,__int64)" (?sputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAA_JPEBD_J@Z) already defined in libprotobufd.lib(descriptor.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: void __cdecl std::basic_ios<char,struct std::char_traits<char> >::setstate(int,bool)" (?setstate@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z) already defined in libprotobufd.lib(descriptor.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: class std::basic_ostream<char,struct std::char_traits<char> > * __cdecl std::basic_ios<char,struct std::char_traits<char> >::tie(void)const " (?tie@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBAPEAV?$basic_ostream@DU?$char_traits@D@std@@@2@XZ) already defined in libprotobufd.lib(descriptor.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: class std::basic_streambuf<char,struct std::char_traits<char> > * __cdecl std::basic_ios<char,struct std::char_traits<char> >::rdbuf(void)const " (?rdbuf@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBAPEAV?$basic_streambuf@DU?$char_traits@D@std@@@2@XZ) already defined in libprotobufd.lib(descriptor.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: char __cdecl std::basic_ios<char,struct std::char_traits<char> >::fill(void)const " (?fill@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBADXZ) already defined in libprotobufd.lib(descriptor.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: void __cdecl std::basic_ostream<char,struct std::char_traits<char> >::_Osfx(void)" (?_Osfx@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAXXZ) already defined in libprotobufd.lib(descriptor.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: class std::basic_ostream<char,struct std::char_traits<char> > & __cdecl std::basic_ostream<char,struct std::char_traits<char> >::flush(void)" (?flush@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@XZ) already defined in libprotobufd.lib(descriptor.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "protected: __cdecl std::basic_streambuf<char,struct std::char_traits<char> >::basic_streambuf<char,struct std::char_traits<char> >(void)" (??0?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAA@XZ) already defined in libprotobufd.lib(descriptor.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: virtual __cdecl std::basic_streambuf<char,struct std::char_traits<char> >::~basic_streambuf<char,struct std::char_traits<char> >(void)" (??1?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAA@XZ) already defined in libprotobufd.lib(descriptor.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "protected: char * __cdecl std::basic_streambuf<char,struct std::char_traits<char> >::eback(void)const " (?eback@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ) already defined in libprotobufd.lib(descriptor.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "protected: char * __cdecl std::basic_streambuf<char,struct std::char_traits<char> >::gptr(void)const " (?gptr@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ) already defined in libprotobufd.lib(descriptor.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "protected: char * __cdecl std::basic_streambuf<char,struct std::char_traits<char> >::pbase(void)const " (?pbase@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ) already defined in libprotobufd.lib(descriptor.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "protected: char * __cdecl std::basic_streambuf<char,struct std::char_traits<char> >::pptr(void)const " (?pptr@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ) already defined in libprotobufd.lib(descriptor.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "protected: char * __cdecl std::basic_streambuf<char,struct std::char_traits<char> >::egptr(void)const " (?egptr@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ) already defined in libprotobufd.lib(descriptor.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "protected: void __cdecl std::basic_streambuf<char,struct std::char_traits<char> >::gbump(int)" (?gbump@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXH@Z) already defined in libprotobufd.lib(descriptor.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "protected: void __cdecl std::basic_streambuf<char,struct std::char_traits<char> >::setg(char *,char *,char *)" (?setg@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXPEAD00@Z) already defined in libprotobufd.lib(descriptor.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "protected: char * __cdecl std::basic_streambuf<char,struct std::char_traits<char> >::epptr(void)const " (?epptr@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ) already defined in libprotobufd.lib(descriptor.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "protected: void __cdecl std::basic_streambuf<char,struct std::char_traits<char> >::setp(char *,char *)" (?setp@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXPEAD0@Z) already defined in libprotobufd.lib(descriptor.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "protected: void __cdecl std::basic_streambuf<char,struct std::char_traits<char> >::setp(char *,char *,char *)" (?setp@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXPEAD00@Z) already defined in libprotobufd.lib(descriptor.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "protected: char * __cdecl std::basic_streambuf<char,struct std::char_traits<char> >::_Pninc(void)" (?_Pninc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAPEADXZ) already defined in libprotobufd.lib(descriptor.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: virtual __cdecl std::basic_ios<char,struct std::char_traits<char> >::~basic_ios<char,struct std::char_traits<char> >(void)" (??1?$basic_ios@DU?$char_traits@D@std@@@std@@UEAA@XZ) already defined in libprotobufd.lib(descriptor.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "protected: __cdecl std::basic_ios<char,struct std::char_traits<char> >::basic_ios<char,struct std::char_traits<char> >(void)" (??0?$basic_ios@DU?$char_traits@D@std@@@std@@IEAA@XZ) already defined in libprotobufd.lib(descriptor.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: __cdecl std::basic_iostream<char,struct std::char_traits<char> >::basic_iostream<char,struct std::char_traits<char> >(class std::basic_streambuf<char,struct std::char_traits<char> > *)" (??0?$basic_iostream@DU?$char_traits@D@std@@@std@@QEAA@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@@Z) already defined in libprotobufd.lib(descriptor.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: virtual __cdecl std::basic_iostream<char,struct std::char_traits<char> >::~basic_iostream<char,struct std::char_traits<char> >(void)" (??1?$basic_iostream@DU?$char_traits@D@std@@@std@@UEAA@XZ) already defined in libprotobufd.lib(descriptor.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: class std::basic_ostream<char,struct std::char_traits<char> > & __cdecl std::basic_ostream<char,struct std::char_traits<char> >::operator<<(int)" (??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@H@Z) already defined in libprotobufd.lib(descriptor.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: class std::basic_ostream<char,struct std::char_traits<char> > & __cdecl std::basic_ostream<char,struct std::char_traits<char> >::operator<<(unsigned __int64)" (??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@_K@Z) already defined in libprotobufd.lib(int128.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: int __cdecl std::basic_streambuf<char,struct std::char_traits<char> >::sbumpc(void)" (?sbumpc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ) already defined in libprotobufd.lib(zero_copy_stream_impl.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: int __cdecl std::basic_streambuf<char,struct std::char_traits<char> >::sgetc(void)" (?sgetc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ) already defined in libprotobufd.lib(zero_copy_stream_impl.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: int __cdecl std::basic_streambuf<char,struct std::char_traits<char> >::snextc(void)" (?snextc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ) already defined in libprotobufd.lib(zero_copy_stream_impl.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: __cdecl std::basic_istream<char,struct std::char_traits<char> >::basic_istream<char,struct std::char_traits<char> >(class std::basic_streambuf<char,struct std::char_traits<char> > *,bool)" (??0?$basic_istream@DU?$char_traits@D@std@@@std@@QEAA@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@_N@Z) already defined in libprotobufd.lib(descriptor.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: virtual __cdecl std::basic_istream<char,struct std::char_traits<char> >::~basic_istream<char,struct std::char_traits<char> >(void)" (??1?$basic_istream@DU?$char_traits@D@std@@@std@@UEAA@XZ) already defined in libprotobufd.lib(descriptor.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: bool __cdecl std::basic_istream<char,struct std::char_traits<char> >::_Ipfx(bool)" (?_Ipfx@?$basic_istream@DU?$char_traits@D@std@@@std@@QEAA_N_N@Z) already defined in libprotobufd.lib(zero_copy_stream_impl.obj) 26>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: class std::basic_ostream<char,struct std::char_traits<char> > & __cdecl std::basic_ostream<char,struct std::char_traits<char> >::write(char const *,__int64)" (?write@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@PEBD_J@Z) already defined in libprotobufd.lib(stringpiece.obj) 26>libcpmtd.lib(locale0.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libcpmtd.lib(locale0.obj) : error LNK2005: "void __cdecl std::_Facet_Register(class std::_Facet_base *)" (?_Facet_Register@std@@YAXPEAV_Facet_base@1@@Z) already defined in msvcprtd.lib(locale0_implib.obj) 26>libcpmtd.lib(locale0.obj) : error LNK2005: "private: static class std::locale::_Locimp * __cdecl std::locale::_Getgloballocale(void)" (?_Getgloballocale@locale@std@@CAPEAV_Locimp@12@XZ) already defined in msvcprtd.lib(MSVCP140D.dll) 26>libcpmtd.lib(locale0.obj) : error LNK2005: "private: static class std::locale::_Locimp * __cdecl std::locale::_Init(bool)" (?_Init@locale@std@@CAPEAV_Locimp@12@_N@Z) already defined in msvcprtd.lib(MSVCP140D.dll) 26>libcpmtd.lib(locale0.obj) : error LNK2005: "public: static void __cdecl std::_Locinfo::_Locinfo_ctor(class std::_Locinfo *,char const *)" (?_Locinfo_ctor@_Locinfo@std@@SAXPEAV12@PEBD@Z) already defined in msvcprtd.lib(MSVCP140D.dll) 26>libcpmtd.lib(locale0.obj) : error LNK2005: "public: static void __cdecl std::_Locinfo::_Locinfo_dtor(class std::_Locinfo *)" (?_Locinfo_dtor@_Locinfo@std@@SAXPEAV12@@Z) already defined in msvcprtd.lib(MSVCP140D.dll) 26>libcpmtd.lib(locale.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libcpmtd.lib(iosptrs.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libcpmtd.lib(wlocale.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libcpmtd.lib(wlocale.obj) : error LNK2005: "public: unsigned short const * __cdecl std::_Locinfo::_W_Getdays(void)const " (?_W_Getdays@_Locinfo@std@@QEBAPEBGXZ) already defined in msvcprtd.lib(MSVCP140D.dll) 26>libcpmtd.lib(wlocale.obj) : error LNK2005: "public: unsigned short const * __cdecl std::_Locinfo::_W_Getmonths(void)const " (?_W_Getmonths@_Locinfo@std@@QEBAPEBGXZ) already defined in msvcprtd.lib(MSVCP140D.dll) 26>libcpmtd.lib(xlocale.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libcpmtd.lib(xstol.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libcpmtd.lib(xstoul.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libcpmtd.lib(xstoll.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libcpmtd.lib(xstoull.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libcpmtd.lib(xlock.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libcpmtd.lib(xlock.obj) : error LNK2005: "public: __cdecl std::_Lockit::_Lockit(int)" (??0_Lockit@std@@QEAA@H@Z) already defined in msvcprtd.lib(MSVCP140D.dll) 26>libcpmtd.lib(xlock.obj) : error LNK2005: "public: __cdecl std::_Lockit::~_Lockit(void)" (??1_Lockit@std@@QEAA@XZ) already defined in msvcprtd.lib(MSVCP140D.dll) 26>libcpmtd.lib(xstrcoll.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libcpmtd.lib(xdateord.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libcpmtd.lib(xwcscoll.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libcpmtd.lib(xwcsxfrm.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libcpmtd.lib(xstrxfrm.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libcpmtd.lib(xmtx.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libcpmtd.lib(StlCompareStringA.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libcpmtd.lib(StlCompareStringW.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libcpmtd.lib(StlLCMapStringW.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>libcpmtd.lib(StlLCMapStringA.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in func_http_main.obj 26>LINK : warning LNK4098: defaultlib 'LIBCMTD' conflicts with use of other libs; use /NODEFAULTLIB:library 26>D:\dev\working\github\opentelemetry-cpp\build\functional\otlp\Debug\func_otlp_http.exe : fatal error LNK1169: one or more multiply defined symbols found 26>Done building project "func_otlp_http.vcxproj" -- FAILED. 27>------ Build started: Project: ALL_BUILD, Configuration: Debug x64 ------ 27>Building Custom Rule D:/dev/working/github/opentelemetry-cpp/CMakeLists.txt ========== Build: 26 succeeded, 1 failed, 0 up-to-date, 0 skipped ========== ========== Build completed at 6:18 PM and took 02:17.584 minutes ==========

what's needed to fix this?

assuming i get past the otel-cpp build issues, next is the question of what libs to link. there are many libraries that get created, and if i want to run my simple test program, which libs are supposed to be linked in?

looked around, but really didn't find any documentation to help figure this out.