Re: [Cegcc-devel] Regarding MinGW target.

[Pedro A. <ped...@po...>]

Pedro Alves escreveu:
> Danny Backx wrote:
>
>   
>> On Mon, 2006-09-25 at 22:51 +0100, Pedro Alves wrote:
>>  
>>
>>     
>>> What I am trying to do is remove the #ifdef __MINGW32CE__ from the patch,
>>> and make the checks check for feature, not target.
>>> eg:
>>>
>>> -#ifdef __MINGW32CE__
>>> +#ifdef HAVE_STRCOLL
>>> #else
>>> #endif
>>>
>>> And have the autoconf* stuff define the HAVE_STRCOLL.
>>>    
>>>
>>>       
>> In general, that would be the better way to proceed - I completely agree
>> on that.
>>
>> However, for this to work, you need to figure out a way for autoconf to
>> figure out whether you have these features.
>>
>> I am not sure that you can reliably do this in a cross-compiler.
>>
>>  
>>
>>     
>
> Sure you can, with AC_CHECK_HEADER(S) and AC_CHECK_FUNCTION(S).
> The thing is where to place them. Look into libstdc++-v3/crossconfig.m4,
> It looks like every other target does an AC_CHECK_HEADERS on its own.
> Does this mean that for example to add errno.h to the list, I will have 
> to add the check
> to every other target too? If I don't, wherever in the code an #ifdef 
> HAVE_ERRNO_H
> appears, it will not be defined even if the header exists, right?
>
>   

I meant for the other targets, of course.

Cheers,
Pedro Alves