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[aseidel <700283@xxxxxxxxxxxxxxxxxx>]

This problem goes back to mid December 2009 and has affected every OSX
issue since then including 2010.5.0-4886_a1cb4a2efa65. On OSX Intel Snow
Leopard machines it manifests itself when using the Hugin stitcher when
the pto file has already been saved as would be the case when re-
stitching an existing project.  Stitching on Leopard PPC machines fails
also but without any shell residue to follow. Perhaps it is for the same
reason.  Note that in both cases the PTBatchGUI does not have the
problem stitching.

What appears to be happening is that when the pto already exists Hugin
suggests a filename that includes the full path of the existing pto file
where the hyphen character "-" is substituted for every instance of the
normal path separator character in the full pto pathname and also as the
first character. It looks like this name is subsequently passed not as a
quoted string to enblend, which in turn thinks the first hyphen
indicates an enblend parameter "-U" because all the described above
substituted full pathnames would start with "-User".

It is interesting that this does not happen on Intel Leopard machines
when the pto is not existing or when a different name is types in that
does not start with "-". However on Leopard PPC machines the stitch
fails no matter what, even when on a totally fresh pto condition.

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https://bugs.launchpad.net/bugs/700283

Title:
  enblend: error when first filename starts with -

Status in Enblend:
  New
Status in Hugin - Panorama Tools GUI:
  Confirmed

Bug description:
  I get the following error msg using
  hugin 2010.4.0 on Mac OS 10.6.5.

  Here's from the log:
  ...
  enblend: unknown option "-U"
  Try "enblend --help" for more information.
  gnumake: *** [-Users-Volker-Desktop-Hugin Test-DSC_0067-DSC_0074.jpg] Error 1

  At this point, hugin has written the modified source pictures for the panaorama to the desiered directory,
  you can put them together manually using the gimp or something.
  I also tried successfully to start emblend out of the hugin package via terminal and make it do the job from there. Worked fine, too.
  to me it seems that the emblend gets a wrong input within hugin.
  I am not into the depth of any programming, so this is as far as I could get. HTH.