Re: direct mode design bug

Hi Joel, *,

On Sun, Nov 4, 2012 at 8:10 PM, Joel Rosdahl <[email protected]> wrote:
>
> The direct mode, which was introduced in version 3.0 almost three years
> ago, has a design bug. The essence of the problem is that in the direct
> mode, ccache records header files that were used by the compiler, but it
> doesn't record header files that were not used but could have been used if
> they existed.

I wouldn't call it a bug, it is just how it works.

If you're going to "fix" this, then please by introducing a "safe
direct" mode in addition to the current direct mode.

If people create headers with the same name all over the place, only
they should "suffer".

From my understanding this is impossible to fix without sacrifying
what direct mode is about. (avoiding to run the preprocessor, or
something similar that simulates a preprocessor)

ciao
Christian