Re: [PATCH resend] Makefile: Use computed header dependencies if the compiler supports it

Fredrik Kuivinen wrote:

On Sun, Aug 14, 2011 at 21:00, Jonathan Nieder [off-list ref] wrote:

quoted

I wonder if we can make do with a faster check, like

       $(CC) -c -MF /dev/null -MMD -MP git.c --help >/dev/null 2>&1

What do you think?

[...]

Without patch (with COMPUTE_HEADER_DEPENDENCIES=Yes):

The case to compare against is when COMPUTE_HEADER_DEPENDENCIES is not
set, I'd think, since that is the status quo.  And I was talking about
commands like "make clean" that do not care about that feature, not
"make all".

[...]

With patch, but changed to use git.c instead of ++empty.c:

Did you try with "--help"?