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bdb657edd6
getrlimit() is in SUSv2 and all targeted systems have it. Windows doesn't have it. We could just use #ifndef WIN32, but for a little more explanation about why we're making things conditional, let's retain the HAVE_GETRLIMIT macro. It's defined in port.h for Unix systems. On systems that have it, it's not necessary to test for RLIMIT_CORE, RLIMIT_STACK or RLIMIT_NOFILE macros, since SUSv2 requires those and all targeted systems have them. Also remove references to a pre-historic alternative spelling of RLIMIT_NOFILE, and coding that seemed to believe that Cygwin didn't have it. Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us> Reviewed-by: Andres Freund <andres@anarazel.de> Discussion: https://postgr.es/m/CA+hUKGJ3LHeP9w5Fgzdr4G8AnEtJ=z=p6hGDEm4qYGEUX5B6fQ@mail.gmail.com