Re: [Bug-glpk] [Fwd: segfault reading a compressed mps file in 4.52]

[Carlo Baldassi]

On Thu, Nov 28, 2013 at 7:05 PM, Andrew Makhorin <address@hidden> wrote:
>> > Could you please remove subdirectory glpk-4.52/src/zlib, copy there
>> > subdirectory glpk-4.50/src/zlib, and then build glpk 4.52 from scratch?
>> > I think the bug should disappear (since you report that 4.50 works
>> > fine). Thank you.
>>
>> Yes, that fixes the problem.
>
> Thank you very much.
>
> In a next release of glpk I will replace zlib 1.2.7 back with 1.2.5 to
> fix the bug.
>
>> It is also fixed in zlib 1.2.8
>> apparently: I just substituted the src/zlib dir in glpk with the one
>> from zlib-1.2.8 and removed the liglpk_la-zio.o target from
>> src/Makefile and it seems to work (note: I only checked with my small
>> test file).
>
> There should be no problem on using a standard zlib instead of the one
> included in the glpk distribution. However, the idea is to have a
> version of zlib that is able to work on non-posix platforms supporting
> only ANSI C.

Thanks. But, instead of downgrading to 1.2.5, would it be feasible to
"port" 1.2.8 to ANSI C instead, as you did for 1.2.7? Is it mostly a
matter of function declaration style (ANSI vs K&R) or is there
something deeper? In the former case, I could try to do provide a
patch, if I find the time.

>
> Andrew Makhorin
>
>