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####### PACKAGES #############
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1) Debian 

- packages ( called preview.app ) exist for Debian Sarge & Debian Sid
  ( thanks to Gürkan Sengün ) 

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##### COMPILE FROM SOURCE ###
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1) Depends

GNUstep
 - gnustep-make
 - gnustep-base (Foundation Kit)
 - gnustep-gui  (Application Kit)

see http://www.gnustep.org 

2) Compile Preview with Project Center (TODO)

3) Compile Preview From command line.

unarchive Preview :
gunzip -c Preview-X.Y.tar.gz | tar xvf -
cd Preview-X-Y
make 
make install (su or sudo if need)