Date: Tue, 31 Jan 2017 13:08:07 -0600 From: "A. Wilcox" <awilfox@...lielinux.org> To: musl@...ts.openwall.com Subject: Re: Re: [alpine-devel] Non-standard C library -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 On 31/01/17 12:50, William Pitcock wrote: > On Tue, Jan 31, 2017 at 12:22 PM, Harald Arnesen > <harald@...gtun.org> wrote: >> musl defines "IPPORT_RESERVED" in "netdb.h", while both GNU libc >> and BSD libc define it in "netinet/in.h". And I can't find an >> e-mail address for a musl developer without subscribing to their >> mailing list. POSIX.1-2008 clearly says IPPORT_RESERVED shall be defined in <netdb.h>: http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/netdb.h.html .... > I checked on both a Debian and FreeBSD machine and indeed, they > both have it in netinet/in.h. .... however, POSIX.1-2008 also clearly says <netdb.h> "may also make visible all symbols from <netinet/in.h>". > What shall we do? Theoretically, the code they are compiling is wrong; POSIX only guarantees the definition in <netdb.h>. However, there is a bit of leeway in the standard since <netdb.h> may include all symbols from <netinet/in.h>; if it's defined there, <netdb.h> can pull that header in providing the definition. I would say that the best thing to do in the interests of compatibility would be to put the definition in <netinet/in.h> *and* fix whatever broken project that is (Snobol?) to include <netdb.h>. This is what FreeBSD and glibc both do; define it in <netinet/in.h> and include that header in <netdb.h>. - --arw - -- A. Wilcox (awilfox) Project Lead, Adélie Linux http://adelielinux.org -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBCAAGBQJYkOCRAAoJEMspy1GSK50Uuv4P/04VgUNWW2Dg50BNiF7zbvE8 KDEF6N781XwcwIO31+ndIRGWo0+CiHHtOHjyZ+Wspr6Zcu5/Lrpau/XAaPXHq/0B Tu64tZxoCBuuXpyqu+fKR/wxyXDEY0YD7SRnLQc4k5QwjskAKPnt1UyvsC6pmwaW Jy+zj91cVWlthfoFzNigprhIJ3TPCFRlZCnmnzDvK2hQZRNTR70LXpSN7ZoZjIl5 xxHVsErjMA9PWTeyFLYJ72rAwTvuFgszD9Gqo8o2WcAr8VKpdgjeoFcmC017fEHr ajQcmpbCrEeo7stMRu7lGmoktnOnA+UAnNrTak44Eic2n6bNrK29Sa6TuB4xEg3u 3+NH/jMA8lsoMtOrdiCtLio56pU8eezP5Z4JDQE0RhKXonAF7io87FNIdJ3s6z/6 dMHXDb69hSxS60YEX1S/5djFbfXkv8PkfEsdu+e5mSTOVmFBK/FyAj52q3rrvz17 rkdYH7i0EBQJnYB2B4SKjJrgrVDBAETxue/H5sdbLFKqryMS3HPEdsJSR2Ks2Aj5 pJmdhAG3upsgMgPuyLzHcOUec3dytRIE6zo45bHgTtFuWN8031bajovp9G3Wigyj vMDKxlNI4vwW4YQd4P5bd8ZuHzBnwvF65+AOW+yMahEzURz87X6FVm1u+xEZlV1d gE5t9bvOnDE7+1VRtfwo =xIKa -----END PGP SIGNATURE-----
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