[Fink-devel] Packaging Manual - how to avoid /sw in .patch

[Kevin Horton]

I am a new fink packager, and still have a lot to learn.  I recently 
was faced with the challenge of figuring out how to get around a need 
to hard code /sw in a .patch file.  I eventually found a solution by 
examing a bunch of .info and .patch files.

I suspect the need to get the prefix in the patch file is a 
relatively common problem.  It would be useful to have this issue, 
and a possible solution, discussed in the packaging manual.  I 
suggest the following text for the section 5.5 of Reference Manaul.

http://fink.sourceforge.net/doc/packaging/reference.php

"It may be necessary for the .patch file to include the fink prefix 
(e.g. /sw).  However, /sw cannot be hard coded.  One solution is to 
put a placeholder in the .patch file where the /sw would be, and use 
a patch script to patch the .patch file.  Put

PatchScript: sed 's|@PREFIX@|%p|g' <%a/%n.patch | patch -p1

This will replace "@PREFIX@" in the .patch file with the user's 
prefix before the .patch file is used."

Kevin Horton

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