Re: [Boost-build] Huang/x64 - Response files prevent debugging

From: David Abrahams (dave_at_[hidden])
Date: 2006-08-21 12:03:03

"Andrei Melnikov" <andy.melnikov_at_[hidden]> writes:

> On 18/08/06, Johan Nilsson <r.johan.nilsson_at_[hidden]> wrote:
>> Andrei Melnikov wrote:
>>
>> >
>> > E is used to create .rsp files. And -d is used to specify the debug
>> > logging level.
>>
>> How is this "E" actually used? Never seen a reference to it before.
>>
>> In Boost.Jam the :E modifier is used to assign a value to an unset variable.
>
> Well, it's not actually :E, but @() construct.
>
> Here is an example taken from msvc.jam:
>
> actions compile-c-c++
> {
>     $(.CC) @"@($(<[1]:W).rsp:E="$(>[1]:W)" -Fo"$(<[1]:W)"
> -Yu"$(>[3]:D=)" -Fp"$(>[2]:W)" $(CC_RSPLINE))"
> }
>
> It creates a file $(<[1]:W).rsp with $(>[1]:W)" -Fo"$(<[1]:W)"
> -Yu"$(>[3]:D=)" -Fp"$(>[2]:W)" $(CC_RSPLINE) written inside.
>
> So I just want to write everything written using @() to the log at
> debug level 2 and higher.
>
> The merging of RSP and command line is toolset-specific and I don't
> think it will give us a lot of advantages.  I think we should see
> the exact picture. 

I agree.

-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com