[PATCH intel-gpu-tools 1/6] Debugger: convert existing makefiles to Automake.

[Colin Walters]

On Fri, 2012-01-06 at 17:19 -0500, Gaetan Nadon wrote:
> On 12-01-06 11:19 AM, Colin Walters wrote:
> > On Fri, 2012-01-06 at 10:52 -0500, Gaetan Nadon wrote:
> >
> >> +sr.cpp : sr.g4a
> >> +	$(srcdir)/pre_cpp.py $(srcdir)/sr.g4a > $@
> > I recommend writing custom build commands to be atomic.  Which means:
> >
> > $(srcdir)/pre_cpp.py $(srcdir)/sr.g4a > $@.tmp && mv $@.tmp $@
> >
> > This way if the developer uses Control-C to send SIGINT to the process
> > group which kills the command in the middle of a write (or the command
> > crashes), you don't spend any time debugging the later program which is
> > consuming a half-written input file.  In some cases this can cause very
> > subtle corruption or errors.
> This is news to me. Makes sense. For the gcc command, would it not take
> care of removing output before exiting?