Re: Linking w/SDKs from the command line
Re: Linking w/SDKs from the command line
- Subject: Re: Linking w/SDKs from the command line
- From: Alastair Houghton <email@hidden>
- Date: Fri, 14 Nov 2003 11:32:55 +0000
On 14 Nov 2003, at 06:39, Eric Albert wrote:
> At 3:38 PM +0000 11/12/03, Alastair Houghton wrote:
>> On 12 Nov 2003, at 03:45, Nick Zitzmann wrote:
>>> First, I forgot I also set these variables before building:
>>> setenv MACOSX_DEPLOYMENT_TARGET "10.2"
>>> setenv NEXT_ROOT "/Developer/SDKs/MacOSX10.2.7.sdk"
>>>
>>> Also, the linker error I'm specifically getting is...
>>>
>>> ld: Undefined symbols:
>>> _poll
>>> _stpcpy
>>
>> Well poll() is a System V Streams function that doesn't exist on Mac
>> OS
>> X (because OS X, being BSD-based, doesn't have Streams).
>
> Actually, poll() (or at least an emulation of it) is new in Panther.
In which case I'll file a bug because it doesn't have a man page.
> It doesn't exist in the 10.2 SDK, but there are a variety of free
> implementations online. I'm a fan of the one at
> <http://www.sealiesoftware.com/fakepoll.h> myself.
>
> (For what it's worth, I think poll(2) exists in FreeBSD, NetBSD, and
> OpenBSD, so while the origin of it may be non-BSD, it exists in most
> BSD-based operating systems.)
Indeed. It has been added to most of them, probably because many
people prefer it to select() (although it's nowhere near as good as
kevent/kqueue, which have also been added in Panther). It wasn't there
in some of the older versions, though (FreeBSD < 3.0, OpenBSD < 2.0,
NetBSD < 1.3, I think).
Kind regards,
Alastair.
[demime 0.98b removed an attachment of type application/pkcs7-signature which had a name of smime.p7s]
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