[GHC] #1096: More make boot / make depend problems

[GHC]

#1096: More make boot / make depend problems
-----------------------------+----------------------------------------------
    Reporter:  kirsten       |       Owner:         
        Type:  bug           |      Status:  new    
    Priority:  low           |   Milestone:         
   Component:  Build System  |     Version:  6.6    
    Severity:  minor         |    Keywords:         
  Difficulty:  Unknown       |    Testcase:         
Architecture:  Unknown       |          Os:  Unknown
-----------------------------+----------------------------------------------
Continuing my adventure in trying to delete an include file, I ran {{{make
 boot}}} under {{{compiler/}}} to update the dependencies there, and
 eventually got:
 {{{
 $ make
 make: *** No rule to make target `../includes/StgTicky.h', needed by
 `stage1/parser/cutils.o'.  Stop.
 }}}

 I couldn't find any mention of {{{StgTicky.h}}} anywhere under the ghc
 tree, except in the {{{.depend}}} files in {{{compiler/}}}. Every time I
 ran {{{make depend}}} or {{{make boot}}} in {{{compiler/}}} again, it just
 re-generated that dependency (seemingly out of nowhere). I finally asked
 Ian and he suggested deleting all the files beginning with {{{.depend}}}
 in {{{compiler/}}}, and that worked -- when I ran {{{make depend}}} after
 that, it correctly figured out that there was no dependency on
 {{{StgTicky.h}}} anymore.

 I don't understand how the dependency-finding works, but this seems like a
 bug to me.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1096>
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