OpenLibm is an effort to have a high quality, portable, standalone C
mathematical library (libm). It can be used standalone in applications and
programming language implementations.

The project was born out of a need to have a good libm for the Julia
programming langage that worked consistently across compilers and operating
systems, and in 32-bit and 64-bit environments.

WWW: http://julialang.org/openlibm/