Meant to send this to the mailing list. Sorry bout that.

-------- Forwarded Message --------
Subject:        Re: [AD] Allegro + latest MinGW = off_t undefined
Date:   Mon, 17 Oct 2016 17:32:25 -0500
From:   Edgar Reynaldo <>
To:     Elias Pschernig <>

On 10/9/2016 10:01 AM, Elias Pschernig wrote:
Or maybe replace off_t with int64_t - the uses I can see seem very suspicious, and most likely currently Allegro 5 will break if it is ever compiled on a system where off_t is only 32 bit.

On Sat, Oct 8, 2016 at 9:59 PM, SiegeLord < <>> wrote:

    Sounds like the proper solution is to define _POSIX_C_SOURCE then,
    perhaps guarded by a check for ALLEGRO_GCC.

All of these errors have been fixed by patches issued by Keith Marshall of MinGW, as detailed here :

So as far as I can see, Allegro 5 programs now properly compile with the C++11 standard in use.

Do we really need to replace off_t with int64_t though? I mean better safe than sorry, but are we really ever going to deal with file system entries larger than 4GB? Where does the issue with using off_t on 64 bit systems come in? If we needed file system offsets I would agree that int64_t would be better, but I don't see any of that in use at the moment.


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