Date: Mon, 30 Oct 1995 08:03:59 +1100 From: Bruce Evans <bde@zeta.org.au> To: bde@zeta.org.au, wollman@lcs.mit.edu Cc: FreeBSD-current@freebsd.org, chuckr@glue.umd.edu, roberto@keltia.freenix.fr Subject: Re: Make world falling over Message-ID: <199510292103.IAA18433@godzilla.zeta.org.au>
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>> Right. I forgot to say in my previous mail that <sys/sysctl.h> is now >> almost self contained so the synopsis in sysctl.3 is now almost correct. >> It is still necessary to include <sys/types.h> before <sys/sysctl.h> >It's fairly well-established that you have to include <sys/types.h> >before including any other sys/ header file, and has been that way for >as long as I can remember. This (bogus) requirement is usually documented (e.g., in stat.2). POSIX requires applications to include <sys/types.h> before all POSIX headers, including before ones in /usr/include that traditionally don't require it, e.g., <pwd.h>, <grp.h> and <fcntl.h>. FreeBSD includes <sys/types.h> in some of these headers for convenience. <grp.h> uses explicit (wrong) types instead of uid_t and gid_t, perhaps to avoid including <sys/types.h>. <pwd.h> uses explicit (wrong) types instead of uid_t and gid_t, although it includes <sys/types.h>. Bruce
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