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Packages description needed for building Intel® Media SDK

The prupose of this guide is to clarify why Intel® Media SDK need specific packages and the dependencies of packages.

Packages from Intel® Media Server Studio

OpenCL™

intel-opencl-xxx-xxx.x86_64.rpm
intel-opencl-cpu-xxx-.x86_64.rpm
intel-opencl-devel-xxx-xxx.x86_64.rpm

Intel® Media SDK can be built without OpenCL™ packages but you will get the product without some features.
How to build without OpenCL™? - Simply don`t install these packages on your system. Build scripts will automatically generate needed make files.

LibVA

libva-xxx-xxx.el7.centos.x86_64.rpm
libva-devel-xxx-xxx.el7.centos.x86_64.rpm   # Needed for headers in /usr/include/va

LibDRM
It is the cross-driver middleware which allows user-space applications to communicate with the Kernel by the means of the DRI protocol.
LibDRM is dependency of LibVA.

libdrm-xxx-xxx.el7.centos.x86_64.rpm
libdrm-devel-xxx-xxx.el7.centos.x86_64.rpm

LibDRM may be from OS repositories but it is not recommended! LibVA can use some features of LibDRM which can absent in the version from OS repositories.
In case of CentOS 7.3:
It already has libdrm - so it should be removed. In CentOS 7.3 libdrm is a dependency of plymouth. Uninstalling of plymouth should not damage your system if you don`t use GUI.

System`s packages

Here is a list of recommended packages

sudo yum groupinstall "Development Tools"
sudo yum install cmake git
sudo yum install libX11 libXext libXfixes libGL libGL-devel libX11-devel

Purpose of these packages:
Development Tools are mainly needed for compilers (such as gcc, g++) and other things which are useful for building the product.

cmake and git are needed only on pre-build stage.

libX11 libXext libXfixes libGL libGL-devel libX11-devel all these packages are needed while building the product.

Tip

Here is full list of needed packages (most of them are installed automatically as dependencies of anothers):

sudo yum groupinstall "Development Tools"
sudo yum install cmake autogen autoconf automake git
sudo yum install libX11 libX11-devel libXext libXext-devel libXfixes libXfixes-devel mesa-dri-drivers libGL libGL-devel numactl-devel numad