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<span><a class="_2IO1Ch3RhP3yvSyc3x2AA0 mention ms-bgc-nlr ms-fcl-b" id="OWAAM409649" href="mailto:gurenchan@gmail.com">@blubee blubeeme</a> So what do you think? Got any ideas?</span></div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Osman Zakir <osmanzakir90@hotmail.com><br>
<b>Sent:</b> Wednesday, December 12, 2018 1:43 AM<br>
<b>To:</b> llvm-dev@lists.llvm.org<br>
<b>Subject:</b> Re: [llvm-dev] Using LLD to link against third-party libraries? How?</font>
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In my code here <a id="LPlnk711090" href="https://github.com/DragonOsman/currency_converter">
https://github.com/DragonOsman/currency_converter</a> , I used C++17 and managed to get it to work (though I'm only using std::map::insert_or_assign() from C++17). And I'm using Windows, so I shouldn't use LDFLAGS or CXXFLAGS as environment variables. I'll
use them directly on the compiler command line instead. The libraries I need to link against are C:/boost_1_68_0/stage/lib/libboost_system-vc141-mt-x64-1_68.lib and C:/Jinja2Cpp/install_x64/lib/static/jinja2cpp.lib.</div>
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I tried to build it with this flag:</div>
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clang++ -std=c++17 -Wall -pedantic -D_SILENCE_CXX17_ADAPTOR_TYPEDEFS_DEPRECATION_WARNING -Dvariant_CONFIG_SELECT_VARIANT=variant_VARIANT_NONSTD -D_SILENCE_CXX17_ALLOCATOR_VOID_DEPRECATION_WARNING -D_CRT_SECURE_NO_WARNINGS -D_WINSOCK_DEPRECATED_NO_WARNINGS -D_WIN32
-D_WIN32_WINDOWS -D_NDEBUG -fexceptions -IC:/Jinja2Cpp/install_x64/include -IC:/json/single_include -IC:/boost_1_68_0 -LC:/boost_1_68_0/stage/lib/libboost_system-vc141-mt-x64-1_68.lib -LC:/Jinja2Cpp/install_x64/lib/static/jinja2cpp.lib currency_converter.cpp
-o currency_converter.exe</div>
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"</div>
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And I got these warnings and errors from LLD:</div>
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" </div>
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<span>lld-link: warning: C:\Users\Osman\AppData\Local\Temp\currency_converter-264ae1.o: locally defined symbol imported: __std_terminate (defined in libvcruntime.lib(ehhelpers.obj)) [LNK4217]<br>
</span>
<div>lld-link: error: undefined symbol: "public: __cdecl jinja2::Template::Template(class jinja2::TemplateEnv *)" (??0Template@jinja2@@QEAA@PEAVTemplateEnv@1@@Z)</div>
<div>>>> referenced by C:\Users\Osman\AppData\Local\Temp\currency_converter-264ae1.o:("void __cdecl handle_request<struct boost::beast::http::basic_string_body<char, struct std::char_traits<char>, class std::allocator<char>>, class std::allocator<char>, struct
server_session::send_lambda &>(class boost::basic_string_view<char, struct std::char_traits<char>>, struct boost::beast::http::message<1, struct boost::beast::http::basic_string_body<char, struct std::char_traits<char>, class std::allocator<char>>, class boost::beast::http::basic_fields<class
std::allocator<char>>> &&, struct server_session::send_lambda &, char const *, char const *)" (??$handle_request@U?$basic_string_body@DU?$char_traits@D@std@@V?$allocator@D@2@@http@beast@boost@@V?$allocator@D@std@@AEAUsend_lambda@server_session@@@@YAXV?$basic_string_view@DU?$char_traits@D@std@@@boost@@$$QEAU?$message@$00U?$basic_string_body@DU?$char_traits@D@std@@V?$allocator@D@2@@http@beast@boost@@V?$basic_fields@V?$allocator@D@std@@@234@@http@beast@1@AEAUsend_lambda@server_session@@PEBD3@Z))</div>
<div></div>
<div>lld-link: error: undefined symbol: "public: class nonstd::expected_lite::expected<void, class jinja2::ErrorInfoTpl<char>> __cdecl jinja2::Template::LoadFromFile(class std::basic_string<char, struct std::char_traits<char>, class std::allocator<char>> const
&)" (?LoadFromFile@Template@jinja2@@QEAA?AV?$expected@XV?$ErrorInfoTpl@D@jinja2@@@expected_lite@nonstd@@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z)</div>
<div>>>> referenced by C:\Users\Osman\AppData\Local\Temp\currency_converter-264ae1.o:("void __cdecl handle_request<struct boost::beast::http::basic_string_body<char, struct std::char_traits<char>, class std::allocator<char>>, class std::allocator<char>, struct
server_session::send_lambda &>(class boost::basic_string_view<char, struct std::char_traits<char>>, struct boost::beast::http::message<1, struct boost::beast::http::basic_string_body<char, struct std::char_traits<char>, class std::allocator<char>>, class boost::beast::http::basic_fields<class
std::allocator<char>>> &&, struct server_session::send_lambda &, char const *, char const *)" (??$handle_request@U?$basic_string_body@DU?$char_traits@D@std@@V?$allocator@D@2@@http@beast@boost@@V?$allocator@D@std@@AEAUsend_lambda@server_session@@@@YAXV?$basic_string_view@DU?$char_traits@D@std@@@boost@@$$QEAU?$message@$00U?$basic_string_body@DU?$char_traits@D@std@@V?$allocator@D@2@@http@beast@boost@@V?$basic_fields@V?$allocator@D@std@@@234@@http@beast@1@AEAUsend_lambda@server_session@@PEBD3@Z))</div>
<div></div>
<div>lld-link: error: undefined symbol: "public: class std::basic_string<char, struct std::char_traits<char>, class std::allocator<char>> __cdecl jinja2::Template::RenderAsString(class std::unordered_map<class std::basic_string<char, struct std::char_traits<char>,
class std::allocator<char>>, class jinja2::Value, struct std::hash<class std::basic_string<char, struct std::char_traits<char>, class std::allocator<char>>>, struct std::equal_to<class std::basic_string<char, struct std::char_traits<char>, class std::allocator<char>>>,
class std::allocator<struct std::pair<class std::basic_string<char, struct std::char_traits<char>, class std::allocator<char>> const, class jinja2::Value>>> const &)" (?RenderAsString@Template@jinja2@@QEAA?AV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@AEBV?$unordered_map@V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@VValue@jinja2@@U?$hash@V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@2@U?$equal_to@V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@2@V?$allocator@U?$pair@$$CBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@VValue@jinja2@@@std@@@2@@4@@Z)</div>
<div>>>> referenced by C:\Users\Osman\AppData\Local\Temp\currency_converter-264ae1.o:("void __cdecl handle_request<struct boost::beast::http::basic_string_body<char, struct std::char_traits<char>, class std::allocator<char>>, class std::allocator<char>, struct
server_session::send_lambda &>(class boost::basic_string_view<char, struct std::char_traits<char>>, struct boost::beast::http::message<1, struct boost::beast::http::basic_string_body<char, struct std::char_traits<char>, class std::allocator<char>>, class boost::beast::http::basic_fields<class
std::allocator<char>>> &&, struct server_session::send_lambda &, char const *, char const *)" (??$handle_request@U?$basic_string_body@DU?$char_traits@D@std@@V?$allocator@D@2@@http@beast@boost@@V?$allocator@D@std@@AEAUsend_lambda@server_session@@@@YAXV?$basic_string_view@DU?$char_traits@D@std@@@boost@@$$QEAU?$message@$00U?$basic_string_body@DU?$char_traits@D@std@@V?$allocator@D@2@@http@beast@boost@@V?$basic_fields@V?$allocator@D@std@@@234@@http@beast@1@AEAUsend_lambda@server_session@@PEBD3@Z))</div>
<div>>>> referenced by C:\Users\Osman\AppData\Local\Temp\currency_converter-264ae1.o:("void __cdecl handle_request<struct boost::beast::http::basic_string_body<char, struct std::char_traits<char>, class std::allocator<char>>, class std::allocator<char>, struct
server_session::send_lambda &>(class boost::basic_string_view<char, struct std::char_traits<char>>, struct boost::beast::http::message<1, struct boost::beast::http::basic_string_body<char, struct std::char_traits<char>, class std::allocator<char>>, class boost::beast::http::basic_fields<class
std::allocator<char>>> &&, struct server_session::send_lambda &, char const *, char const *)" (??$handle_request@U?$basic_string_body@DU?$char_traits@D@std@@V?$allocator@D@2@@http@beast@boost@@V?$allocator@D@std@@AEAUsend_lambda@server_session@@@@YAXV?$basic_string_view@DU?$char_traits@D@std@@@boost@@$$QEAU?$message@$00U?$basic_string_body@DU?$char_traits@D@std@@V?$allocator@D@2@@http@beast@boost@@V?$basic_fields@V?$allocator@D@std@@@234@@http@beast@1@AEAUsend_lambda@server_session@@PEBD3@Z))</div>
<div></div>
<div>lld-link: error: undefined symbol: "public: __cdecl jinja2::Template::~Template(void)" (??1Template@jinja2@@QEAA@XZ)</div>
<div>>>> referenced by C:\Users\Osman\AppData\Local\Temp\currency_converter-264ae1.o:("void __cdecl handle_request<struct boost::beast::http::basic_string_body<char, struct std::char_traits<char>, class std::allocator<char>>, class std::allocator<char>, struct
server_session::send_lambda &>(class boost::basic_string_view<char, struct std::char_traits<char>>, struct boost::beast::http::message<1, struct boost::beast::http::basic_string_body<char, struct std::char_traits<char>, class std::allocator<char>>, class boost::beast::http::basic_fields<class
std::allocator<char>>> &&, struct server_session::send_lambda &, char const *, char const *)" (??$handle_request@U?$basic_string_body@DU?$char_traits@D@std@@V?$allocator@D@2@@http@beast@boost@@V?$allocator@D@std@@AEAUsend_lambda@server_session@@@@YAXV?$basic_string_view@DU?$char_traits@D@std@@@boost@@$$QEAU?$message@$00U?$basic_string_body@DU?$char_traits@D@std@@V?$allocator@D@2@@http@beast@boost@@V?$basic_fields@V?$allocator@D@std@@@234@@http@beast@1@AEAUsend_lambda@server_session@@PEBD3@Z))</div>
<div>>>> referenced by C:\Users\Osman\AppData\Local\Temp\currency_converter-264ae1.o:("int `void __cdecl handle_request<struct boost::beast::http::basic_string_body<char, struct std::char_traits<char>, class std::allocator<char>>, class std::allocator<char>,
struct server_session::send_lambda &>(class boost::basic_string_view<char, struct std::char_traits<char>>, struct basic_string_view<char, struct std::char_traits<char>>::beast::http::message<1, struct boost::beast::http::basic_string_body<char, struct std::char_traits<char>,
class std::allocator<char>>, class boost::beast::http::basic_fields<class std::allocator<char>>> &&, struct server_session::send_lambda &, char const *, char const *)'::`1'::dtor$114" (?dtor$114@?0???$handle_request@U?$basic_string_body@DU?$char_traits@D@std@@V?$allocator@D@2@@http@beast@boost@@V?$allocator@D@std@@AEAUsend_lambda@server_session@@@@YAXV?$basic_string_view@DU?$char_traits@D@std@@@boost@@$$QEAU?$message@$00U?$basic_string_body@DU?$char_traits@D@std@@V?$allocator@D@2@@http@beast@boost@@V?$basic_fields@V?$allocator@D@std@@@234@@http@beast@1@AEAUsend_lambda@server_session@@PEBD3@Z@4HA))</div>
<div></div>
<div>lld-link: warning: C:\Users\Osman\AppData\Local\Temp\currency_converter-264ae1.o: locally defined symbol imported: _CxxThrowException (defined in libvcruntime.lib(throw.obj)) [LNK4217]</div>
<div>lld-link: error: undefined symbol: "class boost::system::error_category const & __cdecl boost::system::detail::system_category_ncx(void)" (?system_category_ncx@detail@system@boost@@YAAEBVerror_category@23@XZ)</div>
<div>>>> referenced by C:\Users\Osman\AppData\Local\Temp\currency_converter-264ae1.o:("class boost::system::error_category const & __cdecl boost::system::system_category(void)" (?system_category@system@boost@@YAAEBVerror_category@12@XZ))</div>
<div></div>
<div>lld-link: warning: C:\Users\Osman\AppData\Local\Temp\currency_converter-264ae1.o: locally defined symbol imported: __RTDynamicCast (defined in libvcruntime.lib(rtti.obj)) [LNK4217]</div>
<div>lld-link: error: undefined symbol: "class boost::system::error_category const & __cdecl boost::system::detail::generic_category_ncx(void)" (?generic_category_ncx@detail@system@boost@@YAAEBVerror_category@23@XZ)</div>
<div>>>> referenced by C:\Users\Osman\AppData\Local\Temp\currency_converter-264ae1.o:("class boost::system::error_category const & __cdecl boost::system::generic_category(void)" (?generic_category@system@boost@@YAAEBVerror_category@12@XZ))</div>
<span>clang++: error: linker command failed with exit code 1 (use -v to see invocation)</span></div>
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"</div>
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<a id="LPUrlAnchor710428" href="https://github.com/DragonOsman/currency_converter" target="_blank" style="text-decoration:none">GitHub - DragonOsman/currency_converter: Application for Computer Science course</a></div>
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Google Maps + Currency Converter Web Application. Application for Computer Science course. This is a currency converter web application with the frontend and a backend.</div>
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github.com</div>
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