[Vm-dev] help with autoconf...

[Eliot Miranda]

On Wed, Apr 22, 2009 at 11:28 AM, Bert Freudenberg <bert at freudenbergs.de>wrote:

>
>
> On 22.04.2009, at 20:04, Eliot Miranda wrote:
>
>  Hi All,
>>
>>    I need to modify the autoconf scripts in the unix build to arrange to
>> omit the -fomit-frame-pointer flag form on e of the files in Cog.  I've
>> asked Ian for help but he's not responded for whatever reason and I would
>> like to solve the issue up front.  Is anyone familiar enough with autoconf
>> and has the free time to hold my hand through the process.  I haven't got
>> the patience to learn autoconf myself (fundamentally because I think its a
>> heap of crap, waaaay too complicated to be worth the effort) but I would
>> like to have the rest of the VM compiled with -fomit-frame-pointer,
>> essentially for plugin performance, so I don't want to take the easy route
>> and simply omit -fomit-frame-pointer throguhout, and I don't want to spend
>> the time e.g. porting the Newspeak make framework, which would be a good
>> thing in the long run.
>>
>> TIA
>> Eliot
>>
>
>
> Ian is on vacation.


That explains it.


>
>
> Easiest might be to add -fno-omit-frame-pointer when your file is compiled,
> this should cancel a previous -fomit-frame-pointer.


Right.  My problem, however, is how to get autoconf to generate a specific
compile rule for one file.  I can define the alternative COMPILEALT macro
but I can't yet figure out how to spit out that rule for a specific source
file withoput hacking it at the wrong place.  But I'm getting closer :/



>
>
> - Bert -
>
>
>
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