I am trying to call Matlab functions form C++ code. With Matlab it comes an example of such code at /extern/examples/eng_mat/engdemo.cpp, however I found no way to build that source code. Here is the makefile I use: CFLAGS = -Wall -O3 INCLUDES = -I/opt/Matlab-2009a/extern/include LIBRARIES = -Wl,-R/opt/Matlab-2009a/bin/glnx86 -L/opt...
I made a static library with GCC. Building of the library was OK. When I use it the linker throws undefined reference errors on some functions. But nm says the functions are defined and exported in the static library (marked with T). I know about the linking order that I need to put the libraries after that module that needs them so thi...
I have a C program that dynamically loads a .so file at runtime in order to connect to a MySQL database. On an x86 (32bit) kernel this works fine but when I recompile my program on an x86_64 (64 bit) kernel I get runtime errors like this: dlerror: mysql-1.932-x86_64-freebsd7.2.so::plugin_tweak_products: Undefined symbol "plugin_filte...
Hi, I have a set of global variables and a method in a cpp file. int a; int b; int c; void DoStuff() { } in the header file I have declared them explicitly with the extern keyword. My problem is when I include the header file in another C++ file, I can't use the external variables and the method. It's giving a linker error sayin...
Hi, I am receiving the following linker error when I build my application. HIMyClass.obj:: error: unresolved external symbol "public: virtual struct QMetaObject const * __thiscall CHIMyClass::metaObject(void)const " (?metaObject@CHIMyClass@@UBEPBUQMetaObject@@XZ) File not found : HIMyClass.obj HIMyClass.obj:: error...
Hi, I currently migrating from 32-bit to 64-bit am encountering a "LNK1223: invalid or corrupt file: file contains invalid .pdata contributions" when attempting to build a 64-bit managed C++ dll that links to an unmanaged C++ .lib file that I also built. So far, I have found that this error should only occur while building for RISC mach...
I have an implementation for printing out enum values in c++ If I put all the code in a .h file, everything works nicely. If I separate out the function implementation into .cpp files, I get a linker error. Here is my main file #include <iostream> #include <vector> #include "Day.h" using namespace std; int main(){ initializeDayN...
Hello, I wrote a Java class which accesses a method in the C dll through Jni. But i am getting the following error in windows. java.lang.UnsatisfiedLinkError: Server.getNetworkDiagram(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String; Guess it is able to load the library. Also i am building the .dll (for window...
Can anyone tell me what the file "/usr/include/c++/4.4/exception" would have to do with this error. There is no main defined in that file. I am not sure how to read the error message. ./libfoo.a(main.o): In function `main': /usr/include/c++/4.4/exception:62: multiple definition of `main' interface-wx/App.o:/usr/include/c++/4.4/excepti...
I am in the process of evaluating an upgrade to Windows SDK 7.1 Part of my team's legacy codebase is a large number of ATL web services, which are still maintained using Visual Studio 2005 because (I am told) ATL web services are not supported in versions beyond 2005. When I pointed the IDE to SDK 7.1, I began to receive the following ...
I am trying to download and build the 'WIC Image Viewer usign Direct2D' from here, but when I build my solution, I am slapped with 56 errors that look like: Error 1 error LNK2019: unresolved external symbol _imp_CoUninitialize@0 referenced in function _wWinMain@16 WICViewerD2D.obj Error 2 error LNK2019: unresolved external ...
I've been using agvtool for one of my iPhone apps on general principle, and have recently found a reason why I want to be able to check the version variable (so that I can re-copy help content into the Documents directory, if it's out of date). The variable, MyAppVersionNumber, defined in MyApp_vers.c, is auto-generated during the build...
Hello everybody, I have a problem with g++ building an application which links to a static library, where the latter shall contain some global functions written in external asm-files, compiled with yasm. So in the library, I have #ifdef __cplusplus extern "C" { #endif extern void __attribute__((cdecl)) interp1( char *pSrc ); extern voi...
Hi , I m working on windows XP with visual studio 2005. My project is a Cmake project created after creating an LDAP abstraction API on linux.I m trying somehow to make it work on windows. I've got an unusual linking error of type LNK2019 code : main.obj : error LNK2019: symbole externe non résolu _strcpy référencé dans la fonction _m...
I attempted to start a blank VS2008 project and follow along with the things being typed during the lectures, but I ran into a horrendous bunch of link errors. In the zip file for assignment 1 for the PC, there is a folder called CS106B. First I told the compiler where the header files are (they're in the CS106B folder). Next I had to t...
Hi, Here is my makefile http://pastie.org/1104332. I am trying to compile different .c files and .s files (assembly files) from different sub directories into E:/em35x/build/mfg-sample-app-cortexm3-iar-em357-em3xx-dev0680/ then the linker should link all the .o files from the build directory (E:/em35x/build/mfg-sample-app-cortexm3-iar-e...
[[UPDATE]] -> If I #include "Queue.cpp" in my program.cpp, it works just fine. This shouldn't be necessary, right? Hey all -- I'm using Visual Studio 2010 and having trouble linking a quick-and-dirty Queue implementation. I started with an empty Win32 Console Application, and all files are present in the project. For verbosity, here's t...
HI, I'm getting following linker error when I compile my program with VS2008 solution which is created with CMake for my wxwidgets based application. *error LNK2019: unresolved external symbol main referenced in function __tmainCRTStartup* but, same program I'm able to compile with normal VS2008 solution which is not created with CMake...
why if we have pure virtual assignment operator in a base class, then we implement that operator on the derived class, it give linker error on the base class? currently I only have the following explanation on http://support.microsoft.com/kb/130486 , it said that the behavior is by design since normal inheritance rules does not apply. ...
In my Cocoa Touch static library project, I have a target set apart for unit testing with OCUnit. When I build the project, I have several unit tests that are supposed to automatically run, but when I actually build the project, I get this linker errors: "_OBJC_CLASS_$_ObjectIntTreeMap_ObjectEntry", referenced from: objc-class-ref-to-Ob...