signed 15.16 precision fixed point arithmetic; profiling libraries

 Signed fixed-precision values 15 bits above the decimal, 16 bits below.
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 These arise commonly in GPU applications and it is chosen to match the
 GLfixed specification.
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 This package provides a library for the Haskell programming language, compiled
 for profiling. See http://www.haskell.org/ for more information on Haskell.