Lilypond Editing Environments and output file names

[Ian Hulin]

This is a heads up for those like Bert and Wilbert who write editing 
support environments for Lilypond.

I currently have a patch in for review which will allow Lily to redirect 
the backend output to another file for particular \book blocks. 
Currently you do this by setting environment variables like output-suffix.

I've noticed that LilypondTool and Frescobaldi can get fooled using 
their internal pdf viewers about where the successfully compiled output is.

I wonder if you editor guys can take an enhancement to make your PDF 
viewers sensitive to the code writing the final format to a different 
file name?

Tracker no is 836, Patch code is at 
http://codereview.appspot.com/143055/show if you want to see what's there.

Hope this helps you to keep your Lilypond layered projects ready for 
2.14.  (If my patch gets through, that is).

Cheers,
Ian