[cmake-developers] RFC: CMake precompiled header support and custom compiler based implementation

[James Johnston]

> -----Original Message-----

> From: cmake-developers [mailto:cmake-developers-bounces at cmake.org]

> On Behalf Of Daniel Pfeifer

> Sent: Wednesday, October 28, 2015 08:57

> To: Taylor Braun-Jones

> Cc: CMake Developers

> Subject: Re: [cmake-developers] RFC: CMake precompiled header support 

> and custom compiler based implementation

> 

> On Tue, Oct 27, 2015 at 3:53 AM, Taylor Braun-Jones <taylor at braun- 

> jones.org> wrote:

> > What's the status of this PCH feature? Does it need testers? More 

> > design input? I'd love to see this feature in a future CMake release.

> > Willing to help.

> 

> I haven't worked on it for quite some time as I currently don't have a

project

> which needs it.

> But I agree that we should get it into CMake, even if it does not 

> support

all

> generators yet.

> Support for additional generators can be added successively.

> 

> I will rebase my branch to master on the weekend, ie port it to 

> cmGeneratorTarget.

> Then you are free to help with review, testing, and additional generators.

> 

> Which generators are the most important for you?

 

I'd also love to see some progress on PCH support, though I haven't had much
time recently... I'd be quite happy to test however with the below compilers
and generators - all of which we would use PCH support with:

 

Generators:

 

* Ninja

* Visual Studio 2008 (eventually 2015)

* Although we're not currently using it, CMake would be pretty broken
without supporting: Unix Makefiles

 

Compilers:

 

* Visual C++ 2008 (eventually 2015): both Ninja and VS generators

* Embarcadero bcc32 compiler: Ninja

* GCC: Ninja

 

Best regards,

 

James Johnston

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