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Re: how to force immediate evaluation of a variable


From: Paul D. Smith
Subject: Re: how to force immediate evaluation of a variable
Date: Wed, 24 Mar 2004 13:17:27 -0500

%% "Kris Thielemans" <address@hidden> writes:

  kt> I'm getting into recursive makefiles, and in a few directories
  kt> want to include a file that will do most of the tricks. That file
  kt> looks for instance as follows

  kt> --- clean.mk ---
  kt> clean_$(dir):
  kt>   rm $(dir)*.o

This is what automatic variables are for.  You should always use those
inside a command script when you want to refer to the target or
prerequisites.

For example:

    clean_$(dir):
        rm $(@:clean_%=%)

-- 
-------------------------------------------------------------------------------
 Paul D. Smith <address@hidden>          Find some GNU make tips at:
 http://www.gnu.org                      http://make.paulandlesley.org
 "Please remain calm...I may be mad, but I am a professional." --Mad Scientist




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