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Thread: conditional variable assignment
conditional variable assignment
user name
 2007-06-07 10:23:32 

  


  

    


I have encountered some GNU make code with the following construction:




target_list: variable_name=variable_value




The intent appears to be the "conditional macro"; idea that I have seen elsewhere, such that a rule which executes a target from this list will execute its commands in an environment where variable_name has the indicated value, even though that value might be different for targets not on the list.




However, I have found no documentation for the above syntax.  Is this a supported construction?




Thanks,


Don Haire





  

  
  
   
     
    

  

    Re: conditional variable assignment
  


  

     country flaguser name
United States		
     2007-06-07 13:20:56
  


  

    
On 2007-06-07 15:23Z, Haire, Don wrote:
> I have encountered some GNU make code with the
following construction:
> 
> target_list: variable_name=variable_value
[...]
> However, I have found no documentation for the above
syntax.  Is this a
> supported construction?

It's in the make-3.81 manual, under:
6.10 Target-specific Variable Values


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    RE: conditional variable assignment
  


  

     user name

     2007-06-07 14:10:12
  


  

    
Got it.  Thanks, Greg. 

-----Original Message-----
From: Greg Chicares [mailto:chicarescox.net] 
Sent: Thursday, June 07, 2007 2:21 PM
To: Haire, Don
Cc: help-makegnu.org
Subject: Re: conditional variable assignment

On 2007-06-07 15:23Z, Haire, Don wrote:
> I have encountered some GNU make code with the
following construction:
> 
> target_list: variable_name=variable_value
[...]
> However, I have found no documentation for the above
syntax.  Is this
a
> supported construction?

It's in the make-3.81 manual, under:
6.10 Target-specific Variable Values


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Help-make mailing list
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//lists.gnu.org/mailman/listinfo/help-make



  


  

    
  

  
  
   
     
    






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