Pádraig Brady <p...@draigbrady.com> writes: > In general gnulib focuses on portable routines, so for example leaves > platform specific crypto optimizations to libcrypto, only providing fallback > cross platform implementations where needed.
OpenSSL libcrypto doesn't provide CRC, does it? I agree with what you say, but I think in this example, I think it makes sense for gnulib to provide a optimized CRC function that may contain architecture-specific optimizations. The reason seems to be that while there are numerous different optimized implementations around, few seems to be arranged in a re-usable fashion. The barrier for acceptance in gnulib may be higher than in some individual projects since gnulib is intended to be highly portable and flexible, and this requires extra care when doing the implementation. But there are examples of arch-specific assembler code in gnulib already. There are some earlier efforts related to CRC for gzip which may be useful to re-read: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=67022 https://debbugs.gnu.org/cgi/bugreport.cgi?bug=39831 https://debbugs.gnu.org/cgi/bugreport.cgi?bug=41535 https://debbugs.gnu.org/cgi/bugreport.cgi?bug=72588 /Simon
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