linker

问题 I've spent the past two hours researching this online, to no avail - I've followed all the instructions several times. I'm using C++11, GCC, Ubuntu 15.04, and Code::Blocks 13.12. I am creating a custom static library. At the moment, it contains only two files: iochannel.hpp and iochannel.cpp . I compile, and all is well. A single libpawlib.a file is produced in pawlib/bin/Debug Next, in the project that I want to use the static library in, I go into Project > Build Options... . I add the path

问题 Problem description while I am trying to move my code from Linux to Windows: MinGW on Windows linker problems happens when I am calling a user-defined class inside my Main.cpp ( works fine if I do not call the user-defined class constructor in Main ) Relevant code samples: Person.hpp class Person { public: Person(const string& iName, const list<string>& iContactDetails, ); virtual ~Person(); ... Main.cpp #include "Person.hpp" ... int main() { ... Person myPerson = Person (myName,

问题 I’m trying to compile a program, which uses boost libraries on Ubuntu and I'm getting error: stepan@stepan-System-Product-Name:~/dev$ g++ -std=c++11 -Wall -pedantic -g -O0 -DBOOST_LOG_DYN_LINK -c test.cpp stepan@stepan-System-Product-Name:~/dev$ g++ test.o -lboost_log -lboost_thread -lpthread -lboost_system -o test test.o: In function `boost::log::v2_mt_posix::basic_formatting_ostream<char, std::char_traits<char>, std::allocator<char> >& boost::log::v2_mt_posix::basic_formatting_ostream<char,

问题 I’m trying to compile a program, which uses boost libraries on Ubuntu and I'm getting error: stepan@stepan-System-Product-Name:~/dev$ g++ -std=c++11 -Wall -pedantic -g -O0 -DBOOST_LOG_DYN_LINK -c test.cpp stepan@stepan-System-Product-Name:~/dev$ g++ test.o -lboost_log -lboost_thread -lpthread -lboost_system -o test test.o: In function `boost::log::v2_mt_posix::basic_formatting_ostream<char, std::char_traits<char>, std::allocator<char> >& boost::log::v2_mt_posix::basic_formatting_ostream<char,

问题 I'm maintaining the VirtualTreeView component for Delphi and C++Builder. With Delphi everything is okay but when I compile the packages with the C++Builder the code in the initialization part in the Delphi units is not called. Any ideas? 回答1: When a Delphi unit's initialization / finalization sections are not being called in a C++Builder project, it usually means the Delphi unit is not being linked into the final executable, typically because the C++ code is not directly referencing any code

问题 Firebird and Boost communities only provide the xxx.lib for their pre-built xxx.dll binaries, and I am using MinGW-w64 v7.0.0 with GCC v8.1.0 , and this last one expects a libxxx.a file containing all the xxx.dll function symbols to link with. For Boost , I can build it from the source code for MinGW-w64 (though I still prefer using the pre-built ones, because the build process for big toolkits like this one takes forever). As for Firebird , it is not buildable using MinGW-w64 at all, except

问题 I've done a bunch of reading on dynamic linker relocations and position independent code including procedure linkage tables and global offset tables. I don't understand why a statically linked executable needs a PLT and GOT. I compiled a hello world program on my ubuntu x86_64 machine and when I dump the section headers with readelf -S it shows PLT and GOT sections. I also created a shared library with a simple increment function that I compiled with gcc -shared without -fpic and I also see

问题 I'm compiling an executable called "interrogate" with: g++ -o built/bin/interrogate -Lbuilt/lib -Lbuilt/tmp -L/usr/X11R6/lib \ built/tmp/interrogate_composite1.o built/tmp/interrogate_composite2.o \ -lp3cppParser -lp3dtool -lp3dtoolconfig -lp3pystub -pthread -ldl After the compilation, when i try to execute the executable: $ LD_LIBRARY_PATH=built/lib built/bin/interrogate built/bin/interrogate: symbol lookup error: built/lib/libp3dtool.so.1.8: undefined symbol: _Py_NoneStruct This symbol is

问题 I'm compiling an executable called "interrogate" with: g++ -o built/bin/interrogate -Lbuilt/lib -Lbuilt/tmp -L/usr/X11R6/lib \ built/tmp/interrogate_composite1.o built/tmp/interrogate_composite2.o \ -lp3cppParser -lp3dtool -lp3dtoolconfig -lp3pystub -pthread -ldl After the compilation, when i try to execute the executable: $ LD_LIBRARY_PATH=built/lib built/bin/interrogate built/bin/interrogate: symbol lookup error: built/lib/libp3dtool.so.1.8: undefined symbol: _Py_NoneStruct This symbol is

问题 I am running through Apache's Thrift tutorial: http://wiki.apache.org/thrift/ThriftUsageC%2B%2B My Thrift is version 0.9.1, and I'm on OS X. I've performed a search for similar problems with this tutorial, and while other people have also had issues they don't appear to be similar to the one I'm having. The server both compiles and links properly, and the client compiles correctly as well. The problem is linking the client at the very last step of the tutorial, where I get this: Undefined