Ask Your Question

Revision history [back]

click to hide/show revision 1
initial version

Install TBB + OpenCV + Qt


I have several weeks trying to install OpenCV 2.4 + TBB 4.1 + QT5 on Windows 7 and can not.

I perform the following steps (in the order they are listed):

(1) I install QT5, specifically: Qt 5.0.2 for Windows 32-bit (MinGW 4.7). This I download from

After installation, I add "C:\Qt\Qt5.0.1\Tools\MinGW\bin" to the PATH environment variable (I'm not sure this is necessary or at least helpful).

(2) I downloaded (from and built TBB 4.1 (Source), specifically: tbb41_20130314oss_src.tgz

I extract this in the path "C:\TBB" and built it with: mingw32-make compiler=gcc arch=ia32

Then I add the system environment variable

"TBBDIR = C:\tbb\tbb41_20130314oss"

and add "%TBBDIR%\build\windows_ia32_gcc_mingw4.7.2_release" to the PATH environment variable. (again, I'm not sure this is necessary or at least helpful)

(3) I downloaded OpenCV (in the path C:\opencv\source) using msysgit + TortoiseGit (following this tutorial

(4) Then build OpenCV using CMake

I do a debug (putting CMAKE_BUILD_TYPE = Debug) in the path "C:\opencv\builds\debug" and then a release (putting CMAKE_BUILD_TYPE = Release) in the path "C:\opencv\builds\release".

In both cases I check the options WITH_QT and WITH_TBB and uncheck WITH_CUBLAS, WITH_CUDA, WITH_EIGEN and WITH_CUFFT.

After that I open a command console, I move to the path "C:\opencv\builds\debug" (where the project debugging) and run the following command:


When the process goes to 33% completion, I get the following error message:

Linking CXX shared library .. \ .. \ bin \ libopencv_core249d.dll c :/ qt/qt5.0.1/tools/mingw/bin/../lib/gcc/i686-w64-mingw32/4.7.2/../../../../i686 -w64-mingw32/bin/ld.exe: can not find-ltbb collect2.exe: error: ld returned 1 exit status modules \ core \ CMakeFiles \ opencv_core.dir \ build.make: 740: recipe for target `bin / l ibopencv_core249d.dll 'failed mingw32-make [2]: * [bin/libopencv_core249d.dll] Error 1 CMakeFiles \ Makefile2: 1084: recipe for target 'modules / core / CMakeFiles / opencv_cor e.dir / all 'failed mingw32-make [1]: [modules / core / CMakeFiles / opencv_core.dir / all] Error 2 Makefile: 115: recipe for target 'all' failed mingw32-make: ** [all] Error 2

I really do not know what the cause of this problem or how I can fix it (at least a few options). Thanks in advance for any help and/or suggestions.