[Zlib-devel] zlib 1.2.6.1: build breaks on MinGW because of __builtin_bswap32

[Mark Adler]

Cosmin,

Thanks.  I have simply removed the optimized byte swap stuff, since there is no reason for it to be optimized.  Any byte swapping is a microscopic portion of the execution time.

I have changed the #define to use the hidden attribute to be positive instead of negative, and I have removed the gcc version checks.  Now it just relies on configure to test whether it's there or not.  By default, it is assumed to not be there.

Mark