From: John Max Skaller (skaller_at_[hidden])
Date: 2001-07-14 09:50:57
> This is the behavior of your C compiler, not the behavior defined by
> either the C standard or C++ standard.
According to C89 and C99, the following is ALSO permitted:
#include pp_tokens newline
is permitted. See 6.10.2/4 of ISO/IEC 9899:1999 for example.
So this is a possible solution. Use the PREPROCESSOR library
to construct the filename using conditionals dependent
on platform configuration information.
In particular we can make macros that expand to absolute
A few libraries, such as the preprocessor and configuration
libraries, will have to be found by
The library vendor then writes:
The main difficulty with this technique is that you can't
extend boost by just adding files into a directory,
you have to update the 'includes.hpp' file.
But that can be fixed too:
with some cleverness in the definition of BOOST_INCLUDE.
I once tried this, but failed because I didn't really grok
the preprocessor. So I can't guarrantee the technique
will work, but I think it might be worth investigation
by someone that does understand the preprocessor.
-- John (Max) Skaller, mailto:skaller_at_[hidden] 10/1 Toxteth Rd Glebe NSW 2037 Australia voice: 61-2-9660-0850 New generation programming language Felix http://felix.sourceforge.net Literate Programming tool Interscript http://Interscript.sourceforge.net
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