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User forums => Using Code::Blocks => Topic started by: Berial on March 01, 2010, 02:35:17 pm

Title: Codeblock+opencv+windows - strange errors
Post by: Berial on March 01, 2010, 02:35:17 pm

Hi
I have problem with linking opencv and codeblocks on Windows Vista. On linux everytghing works great, however I would also like to have working opencv library on Windows. So I added

Code

-lcxcore -lcv -lcvaux -lhighgui -lml -lcvcam

to linker options, furthermore I added

Code

C:\OpenCV2.0\src
C:\OpenCV2.0\include\opencv
C:\OpenCV2.0\lib

to search directories. Unfortunatelly I can't compile any program now, even programs without any of opencv functions.
I got error

Code

ld.exe||cannot find -lcxcore|
||=== Build finished: 1 errors, 0 warnings ===|

When I add

Code

#include <cv.h>

to main.cpp file I got a lot of errors

Code

-------------- Build: Debug in opencvwindows ---------------

Compiling: main.cpp
In file included from C:/OpenCV2.0/include/opencv/cxcore.hpp:2243,
                 from C:/OpenCV2.0/include/opencv/cxcore.h:2123,
                 from C:/OpenCV2.0/include/opencv/cv.h:58,
                 from D:\Tomek\Programowanie\Rozpoznawanie obrazów\codeblocks\windows\opencvwindows\main.cpp:2:
C:/OpenCV2.0/include/opencv/cxoperations.hpp: In member function `void cv::Ptr<_Tp>::addref()':
C:/OpenCV2.0/include/opencv/cxoperations.hpp:1442: error: there are no arguments to `__exchange_and_add' that depend on a template parameter, so a declaration of `__exchange_and_add' must be available
C:/OpenCV2.0/include/opencv/cxoperations.hpp:1442: error: (if you use `-fpermissive', G++ will accept your code, but allowing the use of an undeclared name is deprecated)
C:/OpenCV2.0/include/opencv/cxoperations.hpp: In member function `void cv::Ptr<_Tp>::release()':
C:/OpenCV2.0/include/opencv/cxoperations.hpp:1446: error: there are no arguments to `__exchange_and_add' that depend on a template parameter, so a declaration of `__exchange_and_add' must be available
C:/OpenCV2.0/include/opencv/cxoperations.hpp: In member function `cv::Ptr<_Tp>& cv::Ptr<_Tp>::operator=(const cv::Ptr<_Tp>&)':
C:/OpenCV2.0/include/opencv/cxoperations.hpp:1473: error: there are no arguments to `__exchange_and_add' that depend on a template parameter, so a declaration of `__exchange_and_add' must be available
In file included from C:/OpenCV2.0/include/opencv/cxcore.hpp:2244,
                 from C:/OpenCV2.0/include/opencv/cxcore.h:2123,
                 from C:/OpenCV2.0/include/opencv/cv.h:58,
                 from D:\Tomek\Programowanie\Rozpoznawanie obrazów\codeblocks\windows\opencvwindows\main.cpp:2:
C:/OpenCV2.0/include/opencv/cxmat.hpp: In copy constructor `cv::Mat::Mat(const cv::Mat&)':
C:/OpenCV2.0/include/opencv/cxmat.hpp:102: error: `__exchange_and_add' was not declared in this scope
C:/OpenCV2.0/include/opencv/cxmat.hpp:102: warning: unused variable '__exchange_and_add'
C:/OpenCV2.0/include/opencv/cxmat.hpp: In constructor `cv::Mat::Mat(const cv::Mat&, const cv::Range&, const cv::Range&)':
C:/OpenCV2.0/include/opencv/cxmat.hpp:174: error: `__exchange_and_add' was not declared in this scope
C:/OpenCV2.0/include/opencv/cxmat.hpp:174: warning: unused variable '__exchange_and_add'
C:/OpenCV2.0/include/opencv/cxmat.hpp: In constructor `cv::Mat::Mat(const cv::Mat&, const cv::Rect&)':
C:/OpenCV2.0/include/opencv/cxmat.hpp:189: error: `__exchange_and_add' was not declared in this scope
C:/OpenCV2.0/include/opencv/cxmat.hpp:189: warning: unused variable '__exchange_and_add'
C:/OpenCV2.0/include/opencv/cxmat.hpp: In member function `cv::Mat& cv::Mat::operator=(const cv::Mat&)':
C:/OpenCV2.0/include/opencv/cxmat.hpp:239: error: `__exchange_and_add' was not declared in this scope
C:/OpenCV2.0/include/opencv/cxmat.hpp:239: warning: unused variable '__exchange_and_add'
C:/OpenCV2.0/include/opencv/cxmat.hpp: In member function `void cv::Mat::addref()':
C:/OpenCV2.0/include/opencv/cxmat.hpp:342: error: `__exchange_and_add' was not declared in this scope
C:/OpenCV2.0/include/opencv/cxmat.hpp:342: warning: unused variable '__exchange_and_add'
C:/OpenCV2.0/include/opencv/cxmat.hpp: In member function `void cv::Mat::release()':
C:/OpenCV2.0/include/opencv/cxmat.hpp:346: error: `__exchange_and_add' was not declared in this scope
C:/OpenCV2.0/include/opencv/cxmat.hpp:346: warning: unused variable '__exchange_and_add'
C:/OpenCV2.0/include/opencv/cxmat.hpp: In copy constructor `cv::MatND::MatND(const cv::MatND&)':
C:/OpenCV2.0/include/opencv/cxmat.hpp:3648: error: `__exchange_and_add' was not declared in this scope
C:/OpenCV2.0/include/opencv/cxmat.hpp:3648: warning: unused variable '__exchange_and_add'
C:/OpenCV2.0/include/opencv/cxmat.hpp: In member function `cv::MatND& cv::MatND::operator=(const cv::MatND&)':
C:/OpenCV2.0/include/opencv/cxmat.hpp:3677: error: `__exchange_and_add' was not declared in this scope
C:/OpenCV2.0/include/opencv/cxmat.hpp:3677: warning: unused variable '__exchange_and_add'
C:/OpenCV2.0/include/opencv/cxmat.hpp: In member function `void cv::MatND::addref()':
C:/OpenCV2.0/include/opencv/cxmat.hpp:3717: error: `__exchange_and_add' was not declared in this scope
C:/OpenCV2.0/include/opencv/cxmat.hpp:3717: warning: unused variable '__exchange_and_add'
C:/OpenCV2.0/include/opencv/cxmat.hpp: In member function `void cv::MatND::release()':
C:/OpenCV2.0/include/opencv/cxmat.hpp:3722: error: `__exchange_and_add' was not declared in this scope
C:/OpenCV2.0/include/opencv/cxmat.hpp:3722: warning: unused variable '__exchange_and_add'
C:/OpenCV2.0/include/opencv/cxmat.hpp: In member function `cv::SparseMat& cv::SparseMat::operator=(const cv::SparseMat&)':
C:/OpenCV2.0/include/opencv/cxmat.hpp:4081: error: `__exchange_and_add' was not declared in this scope
C:/OpenCV2.0/include/opencv/cxmat.hpp:4081: warning: unused variable '__exchange_and_add'
C:/OpenCV2.0/include/opencv/cxmat.hpp: In member function `void cv::SparseMat::addref()':
C:/OpenCV2.0/include/opencv/cxmat.hpp:4112: error: `__exchange_and_add' was not declared in this scope
C:/OpenCV2.0/include/opencv/cxmat.hpp:4112: warning: unused variable '__exchange_and_add'
C:/OpenCV2.0/include/opencv/cxmat.hpp: In member function `void cv::SparseMat::release()':
C:/OpenCV2.0/include/opencv/cxmat.hpp:4116: error: `__exchange_and_add' was not declared in this scope
C:/OpenCV2.0/include/opencv/cxmat.hpp:4116: warning: unused variable '__exchange_and_add'
Process terminated with status 1 (0 minutes, 4 seconds)
17 errors, 13 warnings

So could sb tell me what did I do wrong? I didn't have problem with linking this library on linux, however on windows it is terrible experience.
PS
I use codeblocks 8.02 and OpenCV 2.0a

Title: Re: Codeblock+opencv+windows - strange errors
Post by: ollydbg on March 02, 2010, 06:57:27 am

If I remember correctly, opencv 2.0 library is build in TDM-GCC 4.xxx. And the compiler bundled with Codeblocks8.02 is using an old GCC.

I suggest you should use a more recent Codeblocks version, such as a  nightly build version.

Also, a more recent GCC compiler, such as TDM GCC.

Title: Re: Codeblock+opencv+windows - strange errors
Post by: DavidM on March 02, 2010, 08:06:03 am

In  OpenCV2.0\include\opencv\cxoperations.hpp
change line 68 from

Code

        #if __GNUC__ >= 4

To

Code

        #if __GNUC__ >= 4 || __MINGW32__

Title: Re: Codeblock+opencv+windows - strange errors
Post by: Vuki on March 02, 2010, 09:00:07 am

Quote from: Berial on March 01, 2010, 02:35:17 pm

Code

-lcxcore -lcv -lcvaux -lhighgui -lml -lcvcam

Code

ld.exe||cannot find -lcxcore|
||=== Build finished: 1 errors, 0 warnings ===|

Check filenames in C:\OpenCV2.0\lib. If you use pre-built version for Windows, there is no libcxcore.a file there, the file is named libcxcore200.dll.a. Therefore, you need to use -lcxcore200.dll instead. The same rule applies to other libraries (-lcv200.dll and so on).

As for compiler errors, I think you use old compiler version (3.x). Updating to gcc 4 should make it work.