# Building SRT on Linux

Install cmake and openssl-devel (or equivalent) packages. For pthreads, add the -lpthreads linker flag.

Default installation path prefix of make install is /usr/local.

To define a different installation path prefix, use the –prefix option with configure or the [-DCMAKE_INSTALL_PREFIX](https://cmake.org/cmake/help/v3.0/variable/CMAKE_INSTALL_PREFIX.html) CMake option.

To uninstall, call make -n install to list all the dependencies, and then pass the list to rm.

Here is a link to a demo showing how CMake can be used to build SRT: [Quickstart: Running SRT and FFmpeg on Ubuntu](https://www.youtube.com/watch?v=XOtUOVhussc&t=5s).

## Ubuntu 14

``shell sudo apt-get update sudo apt-get upgrade sudo apt-get install tclsh pkg-config cmake libssl-dev build-essential ./configure make ``

## CentOS 7

``shell sudo yum update sudo yum install tcl pkgconfig openssl-devel cmake gcc gcc-c++ make automake ./configure make ``

## CentOS 6

``shell sudo yum update sudo yum install tcl pkgconfig openssl-devel cmake gcc gcc-c++ make automake sudo yum install centos-release-scl-rh devtoolset-3-gcc devtoolset-3-gcc-c++ scl enable devtoolset-3 bash ./configure --use-static-libstdc++ --with-compiler-prefix=/opt/rh/devtoolset-3/root/usr/bin/ make ``