Install toolchain (4.8.2) with Ubuntu 14.04:

$ sudo apt-get install g++-arm-linux-gnueabihf

To compile applications with cmake use this toolchain file:

set(CMAKE_SYSTEM_NAME Linux)

set(TOOLCHAIN_PREFIX arm-linux-gnueabihf)
set(CMAKE_C_COMPILER ${TOOLCHAIN_PREFIX}-gcc)
set(CMAKE_CXX_COMPILER ${TOOLCHAIN_PREFIX}-g++)

set(CMAKE_FIND_ROOT_PATH /usr/${TOOLCHAIN_PREFIX})
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)

And configure cmake with this command:

$ cd path/to/working/directory
$ mkdir build
$ cd build
$ cmake path/to/application/source/ -DCMAKE_TOOLCHAIN_FILE=path/to/arm-linux-gnueabihf.cmake