Problem with new acl code and cdrtools

Peter Rosin peda@lysator.liu.se
Tue Feb 9 08:57:00 GMT 2016


On 2016-02-09 08:56, Ismail Donmez wrote:
> Hi,
> 
> On Tue, Feb 9, 2016 at 6:14 AM, Warren Young <wyml@etr-usa.com> wrote:
>> On Feb 8, 2016, at 9:59 AM, Ismail Donmez <ismail@i10z.com> wrote:
>>>
>>> On Mon, Feb 8, 2016 at 6:29 PM, Peter Rosin <peda@lysator.liu.se> wrote:
>>>> On 2016-02-08 14:31, Ismail Donmez wrote:
>>>>> This is a generic code so I don't want to add a cygwin specific
>>>>> dependency there. Is there a preprocessor definition for cygwin
>>>>> version? I could use that to disable HAVE_SUN_ACL for cygwin 2.5+
>>>>
>>>> Pardon me for butting in, but isn't adding a Cygwin version check
>>>> about as non-generic as it gets?
>>>>
>>>> Wouldn't something like this work:
>>>>
>>>> .../configure ac_cv_func_aclfromtext=no
>>>
>>> Thats a hack :)
>>
>> I don’t know if that smiley means you’re joking or if you’re just trying to soften a negative judgement, but Peter’s proposal is as far from a hack as it gets.
> 
> What Peter suggests is telling autoconf to assume aclfromtext() does
> not exist on the system which is a hack and I already have a hack I
> could use.
> 
>> He is proposing that you write an autoconf test that determines if the platform has this new ACL behavior.  Then in your C code:
>>
>>    #include <config.h>
>>    #if HAVE_FUNC_ACLFROMTEXT
>>    #  include <cygwin/acl.h>
>>    #endif
> 
> I could check for __cygwin__ instead of that which would do the same thing.
> 
> Anyhow the discussion diverged a lot, and for now I'll be using my
> simple hack of disabling HAVE_SUN_ACL manually.

My take on the situation was that you could disable SUN ACLs by telling
configure that cdrtools should not use aclfromtext(), and that the code
that backs this was already in place. I.e. that you could get a working
build recipe w/o any hacking/patching of cdrtools at all.

I might be misunderstanding something though, but if it works and if
it is considered more of an hack than introducing a cygwin version
check inside the cdrtools package, then that's not my headache.

Just trying to help...

Cheers,
Peter

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