How to install libmozjpeg in CentOS/RHEL 6 (x86_64)

Description

libmozjpeg reduces file sizes of JPEG images while retaining quality and compatibility with the vast majority of the world's deployed decoders. libmozjpeg is a JPEG image codec that uses SIMD instructions (MMX, SSE2, NEON) to accelerate baseline JPEG compression and decompression on x86, x86-64, and ARM systems. On such systems, libmozjpeg is generally 2-4x as fast as libjpeg, all else being equal. On other types of systems, libmozjpeg can still outperform libjpeg by a significant amount, by virtue of its highly-optimized Huffman coding routines. In many cases, the performance of libmozjpeg rivals that of proprietary high-speed JPEG codecs. libmozjpeg implements both the traditional libjpeg API as well as the less powerful but more straightforward TurboJPEG API. libmozjpeg also features colorspace extensions that allow it to compress from/decompress to 32-bit and big-endian pixel buffers (RGBX, XBGR, etc.), as well as a full-featured Java interface. libmozjpeg was forked from libjpeg-turbo.