[tlbuild] ./Build modifies tracked files

[Johannes Hielscher]

Hi,

`svn update` pointed me that something sometimes triggers rebuilds of
> Build/source/texk/dvipsk/dvips.info
> Build/source/texk/web2c/doc/web2c.info
My newer makeinfo (5.1→6.5) introduced some changes in the quotation
mark policy, internal references, and the program version in the header.
This is troublesome, since when the respective .texi files are changed,
the svn update will yell about local conflicts.

These files are targets in the respective Makefiles, and, at the same
time, tracked by SVN. Latest changes date back many years to Peter's
work.
Is there make's file change detection mechanism too clever to realise
that the texinfo files don't have to be rebuilt? Or should they be not
tracked (dynamic content) in the first place.

Best,
Johannes