Re: [PATCH] Use SHELL_PATH to fork commands in run_command.c:prepare_shell_cmd

Jeff King wrote:

On Tue, Mar 27, 2012 at 12:01:10AM -0500, Jonathan Nieder wrote:

quoted

I noticed the Makefile already doesn't do this sort of thing for
mandir and htmldir, but do you think changes to SHELL_PATH should be
tracked to force a rebuild when it changes?

Yeah, that would be nice.

Thanks.  On second thought, without the corresponding tracking for
PERL_PATH, USE_GETTEXT_SCHEME, localedir, etc, it doesn't seem worth
it.

In general, I wish adding these sorts of dependencies wasn't so manual
and painful. I'm not sure of a good solution short of totally retooling
our build system, though.

The Linux kernel build system has an interesting solution to this.  It
keeps track of the command line used to build each file and forces a
rebuild when that command changes.

Ciao,
Jonathan