OPENCV Linux Environment to build __linux

Note: This blog finally did not build a successful OpenCV in Linux, please go: http://blog.csdn.net/tanhngbo/article/details/40403885

To see a successful build.

In addition, here is the success in Windows built in the effect: http://blog.csdn.net/tanhngbo/article/details/40319805

Get OpenCV under Windows, this time in Linux (Ubuntu 10.04) to build a.

Untold hardships completely uninstall the residual VMware, and painstakingly loaded on the Vmware-tools

Then follow the official website of the tutorial to see:

Http://docs.opencv.org/trunk/doc/tutorials/introduction/linux_install/linux_install.html

Install the software first:

[Compiler] sudo apt-get install build-essential
[Required] sudo-apt-get install cmake git libgtk2.0-dev pkg-config lib Avcodec-dev Libavformat-dev Libswscale-dev
[optional] sudo apt-get install Python-dev python-numpy libtbb2 Libtbb-dev libjpeg-dev Libpng-dev Libtiff-dev libjasper-dev Libdc1394-22-dev

The internet is too slow, it feels like a long time.

Git doesn't fit, and then it's changed to Git-core.

Next use

Cmake-d cmake_build_type=release-d cmake_install_prefix=/usr/local.

Found CMake version is too old, so download from the official website: http://www.cmake.org/download/

I am lazy, download the binary:cmake-3.0.2-linux-i386.tar.gz

And then the extracted copy into/usr inside

And then you can build it.

CMake Error at 3rdparty/ippicv/downloader.cmake:75 (message):
icv:failed to download ICV package:ippicv_linux_20140513.tgz.
status=6; " Couldn ' t resolve host name '

I can't afford to be here, there's a reply:

http://answers.opencv.org/question/40425/opencv-build-fails-because-i-cannot-download-icv/

Just slack off and shield it.

cmake-d cmake_build_type=release-d cmake_install_prefix=/usr/local-d With_ipp=off.

Next use:

Clam, finally see the compiling screen.

/home/tan/desktop/opencv-3.0.0-alpha/modules/core/src/ocl.cpp:in member function ' void Cv::ocl::image2d::impl:: init (const cv::umat&, BOOL, BOOL) ':
/home/tan/desktop/opencv-3.0.0-alpha/modules/core/src/ocl.cpp:4635:error: #pragma GCC diagnostic not allowed inside Functions
/home/tan/desktop/opencv-3.0.0-alpha/modules/core/src/ocl.cpp:4635:error: #pragma GCC diagnostic not allowed inside Functions
/home/tan/desktop/opencv-3.0.0-alpha/modules/core/src/ocl.cpp:4638:error: #pragma GCC diagnostic not allowed inside Functions
MAKE[2]: * * * [MODULES/CORE/CMAKEFILES/OPENCV_CORE.DIR/SRC/OCL.CPP.O] Error 1
MAKE[2]: * * * waiting for unfinished jobs ....
MAKE[1]: * * * [Modules/core/cmakefiles/opencv_core.dir/all] Error 2
Make: * * * [ALL] Error 2

It looks like GCC is too old.

Find a Mirror:

Http://mirrors-ru.go-parts.com/gcc/releases/gcc-4.9.1/

Download the latest GCC from inside.

There are scary 110MB, no matter, first down.

After downloading GCC, compile to find:

Configure:error:Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC 0.8.0+.

It's been a long time, so I'm going to change to a OPENCV version.

Also last officer Nets grabbed a OPECV 2.4.9 version, this should be better.

If it doesn't work out again, I'll get the old version.

Sure enough, this is a direct use.

Cmake-d cmake_build_type=release-d cmake_install_prefix=/usr/local.

You can compile it.

My current configuration is CMake update to 3.0.2,GCC no update, is 4.4.3 version

This is a problem again.

Error: ' Avformat_free_context ' is not declared into this scope

http://answers.opencv.org/question/32801/unresoved-avformat_free_context-was-not-declared/

This shows the reason why the ffmpeg version is too old. I found that my machine was not installed at all.

sudo apt-get install FFmpeg

It seems that there is something wrong with the net. The bridge is the problem, before using NAT to connect, had to use bridge.

Download ffmpeg-1.2.9.tar.gz and use

./configure--disable-yasm

Make-j4

sudo make install

The installation is ready.

Then compile opencv and fail again, a bunch of trace information, forget it, reinstall Ubuntu 12.04 try it.