Re: sys/signal.h, sys/dirent.h + bugzilla.

[Gregor Richards <gr@purdue.edu>]

On 08/24/12 09:10, idunham@lavabit.com wrote:
>> On Fri, Aug 24, 2012 at 02:19:55PM +0200, John Spencer wrote:
>>> On 08/24/2012 12:40 PM, Daniel CegieÅ*ka wrote:
>>>> Hi,
>>>>
>>>> e2fsprogs (misc/fsck.c) needs include/sys/signal.h, but musl installs
>>>> signal.h only in include/. symlink in Makefile?
>>>>
>>>> btw. the same situation: sys/dirent.h
>>> those are not posix, the package you're trying to compile is at fault
>>> here.
> it's util-*linux*, not util-posix - what do you expect? :P
>> Yes. We've already handled _some_ broken things like this by just
>> adding the nonsense alias for the header (as a wrapper rather than a
>> symlink, though; using symlinks is a bad idea because installing them
>> does not work well) but so far this is the only report I've seen of an
>> app needing these two
> I've seen sys/syscall.h previously. Easily fixed.
> I have considered doing a glibc-header-compat package, which provides
> various nonstandard headers (sys/ aliases, sys/queue.h, etc.) out of tree.
> I don't think they belong in tree.
>
> BTW, util-linux will probably need to check unistd.h for an adequate
> standards-support (_XOPEN_VERSION/_POSIX_VERSION).  Allegedly, they
> support every libc out there, and a number of older ones don't even have
> <syscall.h>.
>
>
>

Ideally, these headers should contain

#ifndef _GNU_SOURCE
#error This is a nonstandard header.
#endif

Perhaps with _BSD_SOURCE too if the BSDs have similar wonko headers.

With valediction,
  - Gregor Richards