[ptx] hugin: nona compile errors

[Bruno Postle]

Another compile problem trying to build current CVS, hugin builds
ok, but nona fails:

g++ -I. -I../include -Wall -O2   -c -o .obj/nona.o nona.cpp
In file included from nona.cpp:34:
../include/PT/SimpleStitcher.h: In function `void
   PT::stitchPanoramaSimple(const PT::Panorama&, const PT::PanoramaOptions&,
   DestImageType&, utils::ProgressDisplay&, const std::string&, const
   std::string&, bool)':
../include/PT/SimpleStitcher.h:252: error: syntax error before `else'
../include/PT/SimpleStitcher.h:291: error: redeclaration of `std::string
   filename'
../include/PT/SimpleStitcher.h:166: error: `std::string filename' previously
   declared here
../include/PT/SimpleStitcher.h:291: error: declaration of `std::string filename
   '
../include/PT/SimpleStitcher.h:166: error: conflicts with previous declaration
   `std::string filename'

-- 
Bruno