[Boost-users] compile problem with wstring in cross-compilation for ARM

Subject: [Boost-users] compile problem with wstring in cross-compilation for ARM
From: Jürgen Blümer (J.Bluemer_at_[hidden])
Date: 2010-04-07 01:17:01

Hi,

with boost 1.42.0 I have tried to cross-compile an application on a 
Kubuntu 9.04 for an ARM processor.

The application is processing ini-files, so the file 
'boost/property_tree/ptree.hpp' is included. During compilation I got the 
errors:

../../../boost/boost/property_tree/ptree_fwd.hpp:91: error: 'wstring' is 
not a member of 'std'

../../../boost/boost/property_tree/string_path.hpp:60: error: expected 
unqualified-id before '&' token
../../../boost/boost/property_tree/string_path.hpp:60: error: expected ',' 
or '...' before '&' token
../../../boost/boost/property_tree/string_path.hpp:60: error: ISO C++ 
forbids declaration of 'parameter' with no type
../../../boost/boost/property_tree/string_path.hpp: In function 
'std::string boost::property_tree::detail::dump_sequence(int)':
../../../boost/boost/property_tree/string_path.hpp:62: error: 's' was not 
declared in this scope

By looking in the 'hpp'-files referenced in the error message I found, 
that in 'boost/property_tree/ptree_fwd.hpp' a '#ifndef BOOST_NO_CWCHAR' is 
only used on line on line 109 for encapsulating wstring usage.

Using this ifndef for encapsulating also the other erroneous lines, the 
error vanishes and everything is compiled.

Is there a reason, why the ifndefs are not inserted at the other position? 

Thanx for help

Jürgen Blümer