[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: cost of -MP

From: Noel Yap
Subject: Re: cost of -MP
Date: Thu, 27 May 2004 14:47:51 -0400
User-agent: Mozilla Thunderbird 0.5 (Windows/20040212)

Boris Kolpackov wrote:

Noel Yap <address@hidden> writes:

Interesting, non-recursive was slower than recursive. I suppose I can see this happening if there weren't that many directories in the project. How many directories do you have?

It is 19 make re-executions. The reason non-recursive is slower is that I haven't had a chance to optimize it yet. I actually expect it to be faster than recursive (for obvious reasons).

OK, this makes sense.

Regarding the topic at hand, we don't use -MP, but post-process the output and create empty targets for the header files. For example:


That's exactly what gcc does.

I misunderstood.  When you said PHONY targets, I thought you meant it generates 
".PHONY: my_header" as well, not just an empty target.


reply via email to

[Prev in Thread] Current Thread [Next in Thread]