[cfe-commits] [patch] a bit of refactoring in the include path code

[Douglas Gregor]

On Oct 5, 2009, at 7:17 PM, Mike Stump wrote:

> On Oct 5, 2009, at 6:35 PM, Rafael Espindola wrote:
>> Second in finding a way of not searching the paths of every  
>> supported system :-)
>
> Not to repeat myself or anything like that:
>
> $ gcc -v  t.cc 2>&1 | sed -n '/^ /p' | sed -n 2,3p
> /usr/include/c++/4.2.1
> /usr/include/c++/4.2.1/i686-apple-darwin10/x86_64
>
> I have a dream, one day we will just compute the actual path up  
> front during the build.


Agreed; this should happen at configure time. It's likely to take some  
time to figure out what we need to look for, because the set of  
include paths we need to find depends on the target triple, e.g.,

$ gcc -v  t.cc 2>&1 | sed -n '/^ /p' | sed -n 2,3p
  /usr/include/c++/4.2.1
  /usr/include/c++/4.2.1/i686-apple-darwin10/x86_64

vs

$ gcc -m32 -v  t.cc 2>&1 | sed -n '/^ /p' | sed -n 2,3p
  /usr/include/c++/4.2.1
  /usr/include/c++/4.2.1/i686-apple-darwin10

	- Doug