On Fri, 13 Aug 2010, Arnaud Charlet wrote: > > The options passed to internal binaries such as cc1 are not a documented > > public interface to GCC, so if you pass such options via -Wp you must > > expect to need to change your makefiles when the GCC-internal interfaces > > change. Instead, you should use the various public interfaces documented > > in cppopts.texi, which *are* stable interfaces. I think what you want > > here is "-MD -MF scripts/basic/.fixdep.d" with no -Wp. > > Well, I know of several projects that rely on -Wp,-MD or -Wp,-MMD, so this > change will certainly affect lots of people I suspect. > > Can't we be friendlier to these projects and keep backward compatibility?
Allowing the same option to behave differently in the driver and in cc1 regarding whether it takes operands seems like error-prone complexity; every piece of code that now or in the future looks at CL_SEPARATE will need also to check whether it is in the driver or in cc1. Why is this code not using -MF? -- Joseph S. Myers jos...@codesourcery.com
