Date: Sun, 21 Nov 2021 13:51:00 -0700 From: Warner Losh <imp@bsdimp.com> To: "freebsd-toolchain@FreeBSD.org" <freebsd-toolchain@freebsd.org> Subject: How to enable BSD defined names / functions Message-ID: <CANCZdfoLO6=A%2B1nm-eQvJCX4age2r0VU7CeiCL99mg6YvReEsQ@mail.gmail.com>
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--00000000000014bd1b05d152abc8 Content-Type: text/plain; charset="UTF-8" There's rather a lot of software that defines _POSIX_C_SOURCE to some value (usually 200809L for POSIX-1.2008), but also wants to use other things. One can generally work around this issue by defining __BSD_VISIBLE=1, but most other systems have something more specific. NetBSD has _NETBSD_SOURCE. OpenBSD has _OPENBSD_SOURCE as well. There's also some expectation that _BSD_SOURCE can be defined, but none of the currently active BSDs has that. It appears from casual inspection that _NETBSD_SOURCE=1 means approximately the same as __BSD_VISIBLE=1 in FreeBSD. Would it make sense to add a _FREEBSD_SOURCE=1 case and have it include __BSD_VISIBLE=1 regardless of what other macros (especially _POSIX_C_SOURCE) are defined to be a more regimented and defined way to expand the namespace when multiple namespaces are defined? Warner --00000000000014bd1b05d152abc8--
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