Re: [Boost-build] Specifying a somple C++ macro define in a jamfile

Subject: Re: [Boost-build] Specifying a somple C++ macro define in a jamfile
From: Jürgen Hunold (juergen.hunold_at_[hidden])
Date: 2011-03-27 11:54:52

Hi Erward,

On Sunday, 27. March 2011 17:39:38 Edward Diener wrote:
> How do I specify a simple macro definition, ie. #define SOMEMACRO, in a
> jamfile for the 'compile' rule ? 

This should  be documented at
http://www.boost.org/boost-
build2/doc/html/bbv2/overview/builtins/features.html

> I know how to add a cxxflag, but
> specifying a command-line #define is different fro different compilers.

This would be the "define" feature which seems to be missing on the page above.

The usage is simple:

<define>BOOST_SP_USE_QUICK_ALLOCATOR

at the same place(s) you'd put <cxxflags> et. al

> Do I have to know the compiler flag for each compiler to do this or is
> their some feature of Boost Build which does it for me ?

or use some toolset specific values:

<toolset>msvc:<define>_USE_MATH_DEFINES

Hope this helps,

yours,

Jürgen
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