Adding configure options when installing a port

[Ryan Schmidt]

On Jun 17, 2010, at 13:59, Stephen Langer wrote:

> 
> On Jun 17, 2010, at 2:44 PM, Ryan Schmidt wrote:
> 
>> 
>> On Jun 16, 2010, at 19:31, Stephen Langer wrote:
>> 
>>> Therefore it's a serious mistake for a packaging system to assume that it's ok to enable openmp in libraries.   A quick solution would be to provide both openmp and no-openmp variants, which would make users choose between fast stand-alone ImageMagick programs and libraries that can be linked by threaded apps.
>> 
>> We don't need two variants; we only need one variant, "openmp", which the user can either enable or disable.
> 
> That's what I meant.  I guess I was using the word "variant" in a nontechnical sense.
> 
>> It just remains a question as to whether the variant should be enabled by default or not. What I'm hearing is that we should disable it by default.
> 
> That would break the least amount of code.

Ok, I'll do that.


>>> A better solution might be for the openmp and non-openmp versions of the libraries to have different names, so that both could be installed on the same system.
>> 
>> Ugh. That sounds nasty.
> 
> I agree.  Can we get ImageMagick to allow openMP to be enabled or disabled at run time?  That would also solve the problem.   Such a switch doesn't exist at the moment, as far as I can tell.

Then you should suggest that to the developers of ImageMagick.