[uclibc-ng-devel] [PATCH] include/features.h: add _DEFAULT_SOURCE macro
Anthony G. Basile
blueness at gentoo.org
Thu Jun 22 15:37:10 CEST 2017
On 6/22/17 9:06 AM, Thomas Petazzoni wrote:
> On Thu, 22 Jun 2017 08:47:06 -0400, Anthony G. Basile wrote:
>> Yes, I'm worried about regressions. __FAVOR_BSD is still used in the
>> and deals with the differences in which signals and long jmps were
>> handled in older BSD. I don't know buildroot that well, but if you grep
>> the tree, will it show where __FAVOR_BSD is used? Or does it (like
>> gentoo's portage) pull in source code as it builds. I assume the latter
>> so grepping is probably insufficient.
> Buildroot is a build system, it doesn't contain code. It downloads the
> source code of the selected packages, as part of the build process.
> In addition, the knock package is not using __FAVOR_BSD anywhere, so
> this problematic package would not even match on a grep __FAVOR_BSD.
> What knock package is doing is that it assumes a BSD-style definition
> of tcphdr will be provided if _BSD_SOURCE and _SVID_SOURCE are defined.
> Best regards,
Can you take a look at include/signal.h and tell me if knocks wants
__FAVOR_BSD defined or not? More generally, if _BSD_SOURCE and
_SVID_SOURCE are defined, do we want __FAVOR_BSD automatically defined
Anthony G. Basile, Ph.D.
Gentoo Linux Developer [Hardened]
E-Mail : blueness at gentoo.org
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