Re: [Boost-build] [PATCH] -ftemplate-depth

From: Ilya Sokolov (fal_delivery_at_[hidden])
Date: 2008-07-20 08:40:13

Jurko Gospodnetić wrote:
>   Hi Ilya.
> 
>> qcc also have "template-depth".
> 
>   I looked at this toolset and it seems to pass this parameter to the 
> compiler in the following format:
> 
>   -Wc,-ftemplate-depth-100
> 
>   As I do not have access to this compiler or its documentation I do not 
> really know how to interpret or change this setting so I have a few 
> questions:
> 
>   What does the -Wc part stand for?

 From http://www.qnx.com/developers/docs/6.3.2/neutrino/utilities/q/qcc.html

\quote
-W phase,arg[,arg ...]
Pass the specified option and its arguments through to a specific phase:
p -- preprocessor
c -- compiler
l -- linker
a -- assembler.
For example, if you want to pass the -MD option to the compiler, specify 
-Wc,-MD on the command line for qcc.
\end_of_quote

>   Is this just one setting or two?
> 
>   If someone removes the template-depth property, should the -Wc 
> parameter be left on the command line? Or should it be removed as well?
> 
>   Should this perhaps be changed to: '-Wc -ftemplate-depth-100' ?
> 
> 
>   Without this information the best I can do is introduce a 
> TEMPLATE_DEPTH flag for this compiler as done in the gcc toolset instead 
> of integrating this option into the OPTIONS flag.
> 
>   Note that this toolset does not appear to have any precompiled header 
> support so there no problem with the compile.c++.pch action like there 
> is in the gcc toolset.
> 
>   I'll be posting an updated patch shortly. Just need to test it a bit 
> first...
> 
>   Best regards,
>     Jurko Gospodnetić
> 
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