OpenCV Error: Unknown error code -6 (OpenCL function is not available: [clGetPlatformIDs]) in opencl_check_fn, file /home/ahb/software/opencv/modules/ocl/src/cl_runtime/cl_runtime.cpp, line 83

The issue results from modules/ocl/src/cl_runtime/cl_runtime.cpp checking for
"linux" instead of "__linux__" (cp.  http://sourceforge.net/p/predef/wiki/OperatingSystems/)

Adjust all other occurrences of "defined(linux)" as well.

_MSC_VER -> defined _MSC_VER. Fixes building with MinGW.
Similar to fbc91c5e.

FFmpeg 2.0.2 32-bit builded with mingw (4.6.1) with following additional options: --enable-w32threads --disable-iconv --cpu=i686 (workaroud for http://trac.ffmpeg.org/ticket/2363)

While the FFmpeg video IO backend gets compiled even without it,
the tests (for both FFmpeg and video IO) don't. This should fix
that.

folowing additional options: --enable-w32threads, --arch=i686 (for 32-bit
library, workaround for http://trac.ffmpeg.org/ticket/2363)

Allow to build samples via OpenCV binaries from distribution package
(find_package with OpenCV_DIR).

add INSTALL command for TBB target

Android 4.3 support added;
ANY camera index support fixed;
applyProperties now uses camera->reconnect() instead close/connect for Android 4.x.
(cherry picked from commit fff91eef)

for libpng added.

Android 4.3 support added;
ANY camera index support fixed;
applyProperties now uses camera->reconnect() instead close/connect for Android 4.x.

Debug library name prefix changed no "_debug" to fit pragmas in TBB
headers.

Downgrade TBB to 4.1u2 for all platforms, except WinRT.

Development release of TBB with WinRT support added;
TBB.dll is placed in bin folder now.

TIFF build was fixed;
Direct Show back-end was enabled;
More accurate guards implemented.

HardFP and SoftFP toolchains joined to one;
RPATH skiping added.