Libjpeg-turbo for OS/2. Libjpeg-turbo is a JPEG image codec that uses 
SIMD instructions (MMX, SSE2, NEON, AltiVec) to accelerate baseline JPEG 
compression and decompression on x86, x86-64, ARM, and PowerPC systems. 
On such systems, libjpeg-turbo is generally 2-6x as fast as libjpeg, 
all else being equal. From this code derive the libmozjpeg turbo.

Release 1.4.2 for OS/2.

You should need some dll, this is the complete list of all packages containing 
all dynamic libs (dll) you should have to use libjpeg-turbo on OS/2:

ftp://ftp.netlabs.org/pub/gcc/gcc4core-1_3_1.wpi (*.dll)
ftp://ftp.netlabs.org/pub/gcc/libc-0.6.6-csd6.zip (*.dll)

For netlabs.org's yum/rpm users: 

yum install libc libgcc1 libgcc-fwd libstdc++6 libsupc++6

Will install all main necessary packages.

To install as user, usually executables and libs should be respectively somewhere 
in path and in libpath statements.

This release emulate libjpeg v8 API/ABI, which means it is backward 
incompatible with libjpeg v6b.

More info and sources are available at:

http://www.libjpeg-turbo.org/

Gianfilippo Cimmino (gianfli dot cim @ gmail dot com).