Re: What should we do when headers are missing in 10.2?
Re: What should we do when headers are missing in 10.2?
- Subject: Re: What should we do when headers are missing in 10.2?
- From: Jim Magee <email@hidden>
- Date: Wed, 11 Sep 2002 10:59:24 -0400
On Wednesday, September 11, 2002, at 06:42 AM, Stiphane Sudre wrote:
In 10.2, there are some headers that vanished.
This leads to the impossibility to compile some code which was
compiling fine on 10.1.
A (maybe bad) example is this kind of compilation error:
/System/Library/Frameworks/Kernel.framework/Headers/netinet/
tcpip.h:66: field `ti_i' has incomplete type
What is the recommended solution in this situation?
You have to include <netinet/ip_var.h> before including
<netinet/tcpip.h>. You may also have to include something else before
including <netinet/ip_var.h>. I didn't look to see if that was end of
the ordering dependencies.
That's just the way BSD headers do things. To change it would break
BSD [in-kernel] compatibility. But having BSD [in-kernel]
compatibility also implies something else. As you will see, the
definition of struct ipovly [the type for the ti_i field] is marked
__APPLE_API_PRIVATE. That's you indicator that you have to be prepared
to have your software track the OS on a release-for-release basis.
If that's not your cup of tea (and it's certainly not the typical
business model of any long-time Mac developer), we are in the process
of creating a set of more sustainable APIs for such kernel extensions.
But as good as we are at guessing your needs, we aren't psychic. You
[all] need to let us know what services you need sustainable interfaces
for. Well do our best to include those [or comparable equivalents].
Otherwise, every release you continue to use __APPLE_API_PRIVATE
services, you will have to be prepared to do this form of discovery,
patch, re-release.
--Jim
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