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From: Joao Abecasis (jpabecasis_at_[hidden])
Date: 2005-03-14 12:35:41

David Abrahams wrote:
> Joao Abecasis <jpabecasis_at_[hidden]> writes:
>>David Abrahams wrote:
>>>in tools/quickbook/doc I did:
>>> bash -c "export ICU_PATH=/cygdrive/c/src/icu && bjam -a --v2 toolset=gcc pdf"
>>>But it continued to try to use vc7.1 until I moved
>>> using gcc ;
>>>to the top of my site-config.jam
>>I had noticed this too... In order to have quickbook compiled only once
>>quickbook is always compiled with the "default" toolset. In practice, we
>>get an empty property-set:
>> local quickbook-property-set = [ property-set.empty ] ;
>>This is not the toolset specified on the command line but the first one
>>ever defined. (<variant>release is also explicitly added which may not
>>always be desirable...)

I'm not sure how I can fix the above issue... The original motivation
for choosing a single toolset was to avoid having multiple quickbook
executables built for the sole purpose of generating docs.

This design allows one to generate docs by specifying only the output
format on the command-line:

bjam --v2 pdf

Quickbook, boostbook et al. are implementation details.

There may be other ways to select the "default" toolset but, given my
limited knowledge of Boost.Build, I'm at loss here.

Maybe the question could be which toolset an empty property-set selects.
Should a toolset explicitly stated on the command-line take precedence?

> Certainly *something* is making Cygwin GCC churn forever when it
> compiles quickbook. Maybe it's the optimizer? Usually that sort of
> thing is not the optimizer, but instead due to too much debug info
> generated by templates...

Under linux, the memory footprint (~100MB) and duration (2-4 mins) of
quickbook compilation with gcc doesn't change significantly going from
debug to release mode. With the intel compiler the memory footprint
increases a bit more, from 100 (debug) to 150MB (release).

I suppose Cygwin GCC should parallel plain gcc behaviour.

>>FWIW, you can specify the quickbook executable to be used with:
>> using quickbook : /path/to/quickbook ;
>>Anyway, there's surely room for improvement and I'm open to
> Well, you can fix the issues we discussed above ;-)

Right... ;)




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