[Clam-devel] IMPORTANT: more changes to build system

[Xavier Amatriain]

A brief update on this issue: this now seems to work with NetworkEditor
and possibly other CLAM apps but NOT when calling scons for building the
CLAM libs!

On Mon, 2007-05-28 at 11:37 +0200, Pau Arumi wrote:
> Ok, now I understand the problem: the scons eclipse plugin extract
> (parses?) the options from the SConstruct file, gives the user an
> interface to change its values, and passes all of them on each
> scons invocation.
> 
> It seems to me that the plugin writers don't like the options cache
> feature that scons have already, a pity.
> 
> To overcome this problem I've added a new option to SConstruct. Its
> meaning should be clear. Tell me if it is not.
> 
>  From scons --help:
> 
> force_avoid_configure: Avoid configure phase. Useful for Eclipse 
> scons plugin. Enable it only if you know what you are doing (yes|no)
>      default: no
>      actual: 0
> 
> Note that there is a difference between doing
> "scons configure" and "scons force_avoid_configure=1"
> the first is not a scons option, thus not accessible from the
> eclipse plugin. And the first is not cached or stored (in
> option.cache) while the second is.
> 
> Pau
> 
> En/na Xavier Amatriain ha escrit:
> > Uhm... let me try again: Eclipse CANNOT call just scons... period. It 
> > always calls it with a configuration.
> > Yes, I can call 'scons' from the command line, outside Eclipse but...
> > 
> > this is a big issue because one of the points in Eclipse is that it 
> > automatically builds and indexes
> > things as you work.
> > 
> > David García Garzón wrote:
> >> As a summary:
> >>
> >> - You must call once 'scons configure' with any parameters.
> >> - Parameters are catched on the options.cache file and configuration 
> >> dependant files are generated.
> >> - Then you call simply 'scons' and that's all.
> >> - Doing 'scons parameter=value' is equivalent to do an 'scons 
> >> configure parameter=value'
> >>
> >> So do the configuration step by hand (if eclipse doesnt support 
> >> specifying such step) and then just 'scons' or 'scons install'.
> >>
> >> David.
> >>
> >>
> >> On Thursday 24 May 2007 17:09:06 Pau Arumi wrote:
> >>  
> >>> Xavier Amatriain wrote:
> >>>    
> >>>> I think you understood it the other way around: what Eclipse can't 
> >>>> do is
> >>>> call scons without arguments.
> >>>> Calling configure from outside does not help because every time 
> >>>> scons is
> >>>> called with arguments configure
> >>>> is called again.
> >>>>       
> >>> but you *can* call scons without arguments, can't you?
> >>> then where is the problem?
> >>>
> >>> p
> >>>
> >>>    
> >>>> What I would need is for scons without arguments to be called
> >>>> automatically after the configure step
> >>>> (if this is going to be enforced).
> >>>>
> >>>> David García Garzón wrote:
> >>>>      
> >>>>> On Thursday 24 May 2007 12:02:08 Pau Arumi wrote:
> >>>>>        
> >>>>>> Xavier Amatriain wrote:
> >>>>>>          
> >>>>>>> On Wed, 2007-05-23 at 09:14 +0200, Pau Arumi wrote:
> >>>>>>>            
> >>>>>>>> this issue probably shows up now just because now on every "scons
> >>>>>>>> option=value" invocaton, the configure step is automatically
> >>>>>>>> called (which, btw, i a *very* convenient change).
> >>>>>>>>               
> >>>>>>> Unfortunately I just realized that this harmless change just broke
> >>>>>>> compatibility of CLAM with Eclipse (just when I was starting to get
> >>>>>>> the hang of it :-( ). Turns out that there is no way to call scons
> >>>>>>> from the Eclipse plugin without the platform and configuration
> >>>>>>> options. Therefore
> >>>>>>> no matter what you do you are always invoking the configure step and
> >>>>>>> nothing else.
> >>>>>>>
> >>>>>>> Isn't there a way that, while keeping the call to configure if
> >>>>>>> necessary, also forces the call to "scons" immediately afterwords?
> >>>>>>>             
> >>>>>> possible is everything ;)
> >>>>>> but... the "call to configure only if necessary" is the hard part
> >>>>>> to implement since it involves comparing the given and cached
> >>>>>> options.
> >>>>>>
> >>>>>> i'd rather change the eclipse/scons workflow, if possible.
> >>>>>> wouldn't it be as simple as editing the options.cache by hand and
> >>>>>> then call "scons" without args from the ide?
> >>>>>>           
> >>>>> In fact you should call externally 'scons configure' as it also
> >>>>> generates the pkg-config files and the flags.conf file. Is weird that
> >>>>> eclipse can not configure a 'configuration' step.
> 
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