Commit 2547c6c81fbf751e22ab7dcafdc1d1b50c8562a3

Mark Adler 2012-03-03T00:03:30

Don't use library or built-in byte swaps. Using optimized byte swaps reduced portability for no real benefit, since they are in parts of the code that represent a tiny fraction of the execution time. So a simple definition of a byte swap is now used.