removing a source file for the dist rule

[Vincent Torri]

Hey,

we have added an option to our configuration stuff that concatenates all 
the source files, creates another from one from them, and compiles it. The 
problem is that this new source file is automatically added to the source 
files that are added in the tar ball.

We have modified DIST_SOURCES so that it contains only the requested files 
to add in the tar ball, but automake gives a warning about DIST_SOURCES 
and that variable is not described in the automake manual (using it 
works, though).

So I would like to kow how i can remove that new file from the files added 
to the tar ball, or what is  the good way to specify the files to add (as 
DIST_SOURCES seems to not be to good way)

thank you

Vincent Torri