On Wed, May 27, 2015 at 10:44:20AM +0100, Jonathan Wakely wrote: > On 27 May 2015 at 10:01, Markus Trippelsdorf wrote: > > And until C++ modules are implemented (unfortunately nobody is working > > on this AFAIK) pch is still the only option left. So deprecating them > > now seem premature. > > I doubt anyone's going to implement them until they're specified, the > proposals are still evolving.
Also from user perspective precompiled headers are clumsy and error-prone interface. Week ago I debugged a header and wasted hour finding why there is problem in header, then finding that cpp x.c > Y.c works but gcc x.c doesn't and it took me while to realize that I accidentaly generated stale header. These are feature that should be transparent. A better approach would be create say 64mb cache with pch or whatever and use precompiled one from cache unless it or depending files timestamps changed.
