Re: [O] Not overwriting unchanged source code files when tangling

[Brian Wightman]

On Fri, Nov 18, 2011 at 11:02 AM, Carsten Dominik
<address@hidden> wrote:
> How about changing the make file so that the dependence is on the Org file, 
> not on the source file?
> You could then arrange for make to call emacs in batch-mode to tangle the 
> source file and then compile it?

The original question was trying to avoid recompiling everything
generated from a tangle if the content didn't actually change.
Because retangling the source rewrites /all/ of the files, and resets
the dates, even if nothing has changed, make will then rebuild
everything that was tangled, not just the partial set of tangled files
that actually changed.

Brian