Re: [Boost-build] using make rule in conjunction with target-os

Subject: Re: [Boost-build] using make rule in conjunction with target-os
From: Rene Rivera (grafikrobot_at_[hidden])
Date: 2010-05-28 17:24:22

On 5/28/2010 4:06 PM, Jim Gallagher wrote:
>> It works for me.. I use it as:
>>
>> make icon.png : other/standard/iphone/icon.png
>>     : @image2icon :<configuration>standard<target-os>iphone ;
>> make icon.png : other/limited/iphone/icon.png
>>     : @image2icon :<configuration>limited<target-os>iphone ;
>>
>> Which pays attention to both<configuration>  (a custom feature I have)
>> and<target-os>  (only iPhone for this project but I have other that also
>> include Windows).
>>
>> Perhaps it's the missing space before the<target-os>? Not sure if you
>> have it that way in your actual files.
>>
>
> It does appear that the spacing is not correct in the email. I double
> checked the actual Jamfile, and there are spaces in the right places.
> I wonder what I could have broken to cause this behavior?

One difference I noticed of yours vs. mine is that I use the *same* 
target name (icon.png). Since variant selection happens on single target 
names it would explain why it works for me. If you reworked your use 
case so that is used the "install" rule instead. And adding the files as:

install $(STAGE_SERVER)/bin : : :
   <target-os>windows:<source>script.bat
   <target-os>hpux:<source>script.sh
;

It would work. The only way to keep it as you had it that I can see if 
is if you make no-op actions for the alternate cases. Which just make 
for a bunch more code:

actions no-op { }

make $(SCRIPT2) : script.bat : @common.copy : <target-os>windows ;
make $(SCRIPT2) : script.bat : @no-op : <target-os>hpux ;

But that would also likely cause it to always run the no-op actions 
since the targets would never be generated.

HTH

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