Help! - Problems compiling kde4 on amd64 with gcc 4.5.3

[Dave Tyson <dtyson%wirralcavinggroup.org.uk@localhost>]

Just had a go at building kde4 again on NetBSD current dated 25/8/2011 (amd64) 
using pkgsrc checked out at the same time.

NetBSD skip 5.99.55 NetBSD 5.99.55 (GENERIC) #0: Thu Aug 25 17:28:55 UTC 2011  
builds%b6.netbsd.org@localhost:/home/builds/ab/HEAD/amd64/201108251530Z-
obj/home/builds/ab/HEAD/src/sys/arch/amd64/compile/GENERIC amd64

kdepimlibs4 drops out with a c++ compilation error:

Building CXX object gpgme++/CMakeFiles/gpgmepp.dir/gpgsignkeyeditinteractor.o
/usr/pkgsrc/misc/kdepimlibs4/work/kdepimlibs-4.5.5/gpgme++/gpgsignkeyeditinteractor.cpp:
 
In member function 'virtual unsigned int 
GpgME::GpgSignKeyEditInteractor::nextState(unsigned int, const char*, 
GpgME::Error&) const':
/usr/pkgsrc/misc/kdepimlibs4/work/kdepimlibs-4.5.5/gpgme++/gpgsignkeyeditinteractor.cpp:247:138:
 
error: no matching function for call to 
'std::map<boost::tuples::tuple<GpgSignKeyEditInteractor_Private::SignKeyState, 
unsigned int, std::basic_string<char> >, 
GpgSignKeyEditInteractor_Private::SignKeyState>::find(std::tuple<GpgSignKeyEditInteractor_Private::SignKeyState,
 
unsigned int, std::basic_string<char> >) const'
/usr/include/g++/bits/stl_map.h:696:7: note: candidates are: std::map<_Key, 
_Tp, _Compare, _Alloc>::iterator std::map<_Key, _Tp, _Compare, 
_Alloc>::find(const key_type&) [with _Key = 
boost::tuples::tuple<GpgSignKeyEditInteractor_Private::SignKeyState, unsigned 
int, std::basic_string<char> >, _Tp = 
GpgSignKeyEditInteractor_Private::SignKeyState, _Compare = 
std::less<boost::tuples::tuple<GpgSignKeyEditInteractor_Private::SignKeyState, 
unsigned int, std::basic_string<char> > >, _Alloc = 
std::allocator<std::pair<const 
boost::tuples::tuple<GpgSignKeyEditInteractor_Private::SignKeyState, unsigned 
int, std::basic_string<char> >, 
GpgSignKeyEditInteractor_Private::SignKeyState> >, std::map<_Key, _Tp, 
_Compare, _Alloc>::iterator = std::_Rb_tree_iterator<std::pair<const 
boost::tuples::tuple<GpgSignKeyEditInteractor_Private::SignKeyState, unsigned 
int, std::basic_string<char> >, 
GpgSignKeyEditInteractor_Private::SignKeyState> >, key_type = 
boost::tuples::tuple<GpgSignKeyEditInteractor_Private::SignKeyState, unsigned 
int, std::basic_string<char> >]
/usr/include/g++/bits/stl_map.h:711:7: note:                 std::map<_Key, 
_Tp, _Compare, _Alloc>::const_iterator std::map<_Key, _Tp, _Compare, 
_Alloc>::find(const key_type&) const [with _Key = 
boost::tuples::tuple<GpgSignKeyEditInteractor_Private::SignKeyState, unsigned 
int, std::basic_string<char> >, _Tp = 
GpgSignKeyEditInteractor_Private::SignKeyState, _Compare = 
std::less<boost::tuples::tuple<GpgSignKeyEditInteractor_Private::SignKeyState, 
unsigned int, std::basic_string<char> > >, _Alloc = 
std::allocator<std::pair<const 
boost::tuples::tuple<GpgSignKeyEditInteractor_Private::SignKeyState, unsigned 
int, std::basic_string<char> >, 
GpgSignKeyEditInteractor_Private::SignKeyState> >, std::map<_Key, _Tp, 
_Compare, _Alloc>::const_iterator = 
std::_Rb_tree_const_iterator<std::pair<const 
boost::tuples::tuple<GpgSignKeyEditInteractor_Private::SignKeyState, unsigned 
int, std::basic_string<char> >, 
GpgSignKeyEditInteractor_Private::SignKeyState> >, key_type = 
boost::tuples::tuple<GpgSignKeyEditInteractor_Private::SignKeyState, unsigned 
int, std::basic_string<char> >]
*** Error code 1

Stop.
make: stopped in /usr/pkgsrc/misc/kdepimlibs4/work/kdepimlibs-4.5.5/_KDE_build
*** Error code 1

The line in question looks innocuous:

   const TransitionMap::const_iterator it = table.find( make_tuple(
        static_cast<SignKeyState>( state() ), status, std::string( args ) ) );

and the same code compiles fine under i386 NetBSD 5.1 

I am guessing this may be an issue with gcc 4.5.3, but don't have a clue about 
c++.

Has anyone else seen this problem? Should I submit a bug report or is there a 
subtle fix :-)

Cheers,
Dave

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