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Date: | Sat, 2 May 2015 15:09:40 +0200 |
From: | Corinna Vinschen <corinna-cygwin AT cygwin DOT com> |
To: | cygwin AT cygwin DOT com |
Subject: | Re: [64bit] cygwin-devel headers broken |
Message-ID: | <20150502130940.GA12723@calimero.vinschen.de> |
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--VS++wcV0S1rZb1Fb Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On May 1 14:38, Eric Blake wrote: > On 05/01/2015 02:12 PM, Marco Atzeri wrote: > >>> It seems that sys/select.h is no longer implicitly included by some > >>> other header, I think probably sys/time.h. >=20 > POSIX says: >=20 > http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/sys_time.h.html#= tag_13_64 >=20 > "Inclusion of the <sys/time.h> header may make visible all symbols from > the <sys/select.h> header." >=20 > which means <sys/time.h> may (but not must) pollute the namespace with > select(). This means two things: >=20 > 1. Portable applications should not depend on the pollution (so > reporting it to upstream projects is the right thing to do) >=20 > 2. Cygwin should do better at emulating Linux and include the namespace > pollution, for the sake of applications that have not yet been patched. I screwed that up, didn't I? This is a result of the newlib change to sys/time.h. It has been updated to the latest stuff from FreeBSD in March. Before, we had a <cygwin/sys_time.h> header which defines futimes and lutimes. Since these symbols are now defined in newlib's new sys/time.h, I concluded razor-sharp, that we don't need the cygwin-specific cygwin/sys_time.h anymore. Unfortunately I missed the fact that this file also includes <sys/select.h>. > Anyone want to tackle the patch to cygwin's sys/time.h? I applied a patch. A new version of Cygwin has to wait until I'm back from vaca, sorry. Corinna --=20 Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Maintainer cygwin AT cygwin DOT com Red Hat --VS++wcV0S1rZb1Fb Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBCAAGBQJVRMyUAAoJEPU2Bp2uRE+gzr8P/jzy39qU5SUn8V1yjBJzvVyK RxV4rn1VsdzzQImnEgbMQ8au0tUqsmSdKnDGnj7pY7DANpNTt7MnCyW07o5vLjd1 sKhW65oqel3/VkCyMeInil3RzJT4B55jENu5Y3NB3YFmaTgZB/zQf41D5EIvPy+X +brzBXjMRTpi0aj8dfE+077fwXS77UH5i2CPxYMR97Jq/vwTIaQqNNxc/cu3JWoO gSKlSQeXoqLDCpXFeQfSsRPYZ/V/AB/tKOq60/ulVHAkH3djRuqP9Jn6VeEhkEDq kDXXsQQsFWvZQjm60GDStVDY0OmohFSPZkMAafLqUmKamgHqBcfJfIZ7wvBLq88t dpsDpDebOgNKHH7jeZcjs8VVh6gGkCc7bAkU5/396umoB4ajwkkRV9l66ZVqE3Fs z3JrV2fnr4OdPiKYqGYVTznB6jjzGfb/Al2p996jw+E+7mnkX0NmQAxCb/eGqlfN NOTZ4CnguVftkbkYqmusos2ghMOR7aIt72YzSV9EfERlNjcMp43ej2ru3q0eNhC6 1p6qr+WTagX4GtBwRBufJ/IykySLZsa7fB3J4uTIhxZL9c7VK1HyWpmflJtw1N5m 2f9sqkAnpS2uhEvwV/x0qR0E0aOJtQC8tOEIBDIU8x+aaiftGcoqc21SMsJTtI9R oYIzVjhAr9HI9dCTUxPs =Ysrz -----END PGP SIGNATURE----- --VS++wcV0S1rZb1Fb--
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