[64bit] cygwin-devel headers broken

[Michael Enright]

When changing from compiler to compiler, even if it be just an OS
point version upgrade, implicit header inclusions go away all the
time. As a developer, I just shrug this off as one of the trade-offs
of choosing to develop in C or C++, which lack proper module systems.


On Fri, May 1, 2015 at 10:58 AM, Thomas Wolff <towo@towo.net> wrote:
> Am 01.05.2015 um 14:10 schrieb Jon TURNEY:
>>
>> On 01/05/2015 06:03, Marco Atzeri wrote:
>>>
>>> On 4/30/2015 8:52 PM, Thomas Wolff wrote:
>>>>
>>>> There is a crash issue induced on cygwin-64 (not on -32) after
>>>> compilation with cygwin-devel 2.0.0 include files. I am recompiling my
>>>> editor mined and it crashes, maybe immediately or after typing
>>>> non-trivial input (like function keys, waiting for input with select()).
>>>> ...
>>>>
>>>
>>> I had a similar issue. But in my case the compilation fails as
>>> select seems gone:
>>
>>
>> It seems that sys/select.h is no longer implicitly included by some other
>> header, I think probably sys/time.h.
>
> Thanks for the hint, adding an include solves the issue.
> It had compiled without because I have a plain extern int select()
> declaration. It's obviously not a good declaration because the pointer
> arguments can now be 64 bit. (I think I could not unconditionally include
> select.h for porting compatibility with some legacy systems that don't have
> it.)
>
> Not sure whether it's a bug then as arguably a program using select should
> declare it properly. On the other hand this issue has not appeared on any
> other system and if traditionally include time.h used to imply include
> select.h maybe that should be maintained.
> ------
> Thomas
>
>
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