Cause whatcomp output to use the incoming epocroot value. i.e. if epocroot is relative then so is the what output.
e.g. if EPOCROOT=\ then the output will be of the form "\epoc32\release\armv5\...." If it's "..\myepocroot" then the output will be "..\myepocroot\epoc32\release\armv5". If it's absolute then the what output will also be absolute.
// (C) Copyright John Maddock 2001 - 2002.
// Use, modification and distribution are subject to the
// Boost Software License, Version 1.0. (See accompanying file
// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
// See http://www.boost.org for most recent version.
#if __IBMCPP__ <= 501
# define BOOST_NO_STD_ALLOCATOR
#endif
#define BOOST_HAS_MACRO_USE_FACET
#define BOOST_NO_STD_MESSAGES
#define BOOST_NO_STD_UNORDERED
#define BOOST_STDLIB "Visual Age default standard library"