Re: make problem with multiple character matching (%) operator

[James . Potts]

Are you saying that VPATH can not be used to find intermediate targets, such as 
objects built by the compiler?

Thanks for your help.

Jim Potts - Reuters




                                                                                
                              
                    "Paul D.                                                    
                              
                    Smith"              To:      Crni Gorac <address@hidden>    
                            
                    <address@hidden       cc:      address@hidden               
                             
                    rg>                  Subject:     Re: make problem with 
multiple character matching (%)   
                    Sent by:             operator                               
                              
                    help-make-adm        Header:      Internal Use Only         
                              
                    address@hidden                                              
                                  
                                                                                
                              
                                                                                
                              
                    01/11/2002                                                  
                              
                    03:37 PM                                                    
                              
                    Please                                                      
                              
                    respond to                                                  
                              
                    "Paul D.                                                    
                              
                    Smith"                                                      
                              
                                                                                
                              
                                                                                
                              



%% Crni Gorac <address@hidden> writes:

  cg> Project foo has following directory hierarchy:
  cg>     foo
  cg>     |-- Makefile
  cg>     |-- ab
  cg>     |   `-- foo.a
  cg>     `-- c

  cg> File foo/ab/foo.b should be generated from
  cg> foo/ab/foo.a and then file foo/c/foo.c from
  cg> foo/ab/foo.b. Following Makefile is used:

  cg> ABDIR = ab
  cg> CDIR  = c
  cg> VPATH = $(ABDIR)

  cg> Where I am wrong? Why it is not possible for make to accomplish
  cg> two successive multiple character matching and conclude that it
  cg> should first generate .b file, then .c file?

That's not the problem.  The problem is you're misusing VPATH.

VPATH is designed to find _sources_.  It cannot be used to find
_targets_.  It won't work to use it like that.

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

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