[boost] BOOST_WORKAROUND and g++ -Wundef

From: Angus Leeming (angus.leeming_at_[hidden])
Date: 2005-10-14 03:34:15

Compiling the attached code with g++ 3.4.4 as
  g++ -Wundef -Iboost/cvs -o trial trial.cpp
produces a heap of warnings
  warning: "__BORLANDC__" is not defined
  warning: "_MSC_FULL_VER" is not defined
  warning: "__MWERKS__" is not defined

The warnings are produced by code like:
#if BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3003))

and are, of course, silenced by:
#if defined(__MWERKS__) && \
    BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3003))

Grepping around the boost sources, I see that my 'fix' has been applied
about 70 times already in the 1260 uses of BOOST_WORKAROUND. Assuming that
the lack of consistency reflects only the size of the task, I've made a
patch applying the fix to Boost.Random. Chipping away at the block...

Hoping that this is useful,
Angus