[FFmpeg-devel] [PATCH 2/3] configure: Set large address aware.

[Reimar Döffinger]

On 28.09.2014, at 11:12, Matt Oliver <protogonoi at gmail.com> wrote:
> On 28 September 2014 18:49, Reimar Döffinger <Reimar.Doeffinger at gmx.de>
> wrote:
> 
>> On Sun, Sep 21, 2014 at 10:17:15AM +0100, Reimar Döffinger wrote:
>>> Allows 32 bit version of FFmpeg to use up to 4 GB of RAM
>>> instead of just 2 GB on Windows if the OS can provide it.
>> 
>> Any other comments?
>> Note the documentation for that option:
>>> The /LARGEADDRESSAWARE option tells the linker that the application can
>>> handle addresses larger than 2 gigabytes.
>> This flag is _only_ used to signal that an application can deal
>> with addresses that use more than 31 address bits.
>> I.e. it is only for those horribly misdesigned programs that
>> thought "oh, let's store some extra stuff in that unused high bit
>> of the address". Which FFmpeg definitely does not.
>> There is no indication that ptrdiff_t limitations or similar have
>> any relevance to whether one should set this or not.
>> 
> 
> There shouldnt be any problem with this at all as it basically just sets a
> flag in the output dll/exe (which can be manually set after compilation
> anyway).
> 
> LARGEADDRESSAWARE should probably be added for msvc/icl as well.

Patch welcome. I don't want to add things I can't easily test.