Why does poudriere always rebuild nginx and GraphicsMagick13?

[Adam McDougall]

On Fri, Feb 15, 2013 at 12:37:19AM +0100, Rainer Duffner wrote:
  
  Am 12.02.2013 um 23:11 schrieb Baptiste Daroussin <bapt at freebsd.org>:
  
  > On Tue, Feb 12, 2013 at 10:59:28PM +0100, Rainer Duffner wrote:
  >> Hi,
  >> 
  >> poudriere 2.2 here, running on 9.1-amd64
  >> 
  >> Of the 730-ish ports, whenever I run a build, it always rebuilds the above two ports.
  >> Even if nothing changed.
  
  ====>> Options changed, deleting: GraphicsMagick-nox11-1.3.16_1.txz
  ====>> Options changed, deleting: nginx-1.2.6,1.txz
  
  Somehow, it thinks the options have changed.
  Maybe, the options-file has an error?
  
  Regards,
  Rainer
  
Try deleting the options file for each and run poudriere twice to test.
I had the same problem with mailman and it turned out I was missing a
required but not enforced option due to another option I had selected.