QT doesnt compile

[derpyprojects]

src/qt/statisticspage.cpp:81:64: note: candidates are:
In file included from /usr/include/qt4/QtGui/qvalidator.h:48:0,
from /usr/include/qt4/QtGui/qabstractspinbox.h:46,
from /usr/include/qt4/QtGui/qstyleoption.h:46,
from /usr/include/qt4/QtGui/qabstractitemdelegate.h:46,
from /usr/include/qt4/QtGui/qabstractitemview.h:48,
from /usr/include/qt4/QtGui/qheaderview.h:45,
from /usr/include/qt4/QtGui/QHeaderView:1,
from build/ui_statisticspage.h:20,
from src/qt/statisticspage.cpp:2:
/usr/include/qt4/QtCore/qlocale.h:698:13: note: QString QLocale::toString(qlonglong) const
QString toString(qlonglong i) const;
^
/usr/include/qt4/QtCore/qlocale.h:699:13: note: QString QLocale::toString(qulonglong) const
QString toString(qulonglong i) const;
^
/usr/include/qt4/QtCore/qlocale.h:810:16: note: QString QLocale::toString(short int) const
inline QString QLocale::toString(short i) const
^
/usr/include/qt4/QtCore/qlocale.h:812:16: note: QString QLocale::toString(ushort) const
inline QString QLocale::toString(ushort i) const
^
/usr/include/qt4/QtCore/qlocale.h:814:16: note: QString QLocale::toString(int) const
inline QString QLocale::toString(int i) const
^
/usr/include/qt4/QtCore/qlocale.h:816:16: note: QString QLocale::toString(uint) const
inline QString QLocale::toString(uint i) const
^
/usr/include/qt4/QtCore/qlocale.h:704:13: note: QString QLocale::toString(double, char, int) const
QString toString(double i, char f = 'g', int prec = 6) const;
^
/usr/include/qt4/QtCore/qlocale.h:818:16: note: QString QLocale::toString(float, char, int) const
inline QString QLocale::toString(float i, char f, int prec) const
^
src/qt/statisticspage.cpp:90:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if(nMinWeight > stakeminPrevious)
^
src/qt/statisticspage.cpp:96:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if(nNetworkWeight > stakemaxPrevious)
^
In file included from src/bitcoinrpc.h:16:0,
from src/init.cpp:7:
src/json/json_spirit_writer_template.h: In function ‘String_type json_spirit::non_printable_to_string(unsigned int)’:
src/json/json_spirit_writer_template.h:31:50: warning: typedef ‘Char_type’ locally defined but not used [-Wunused-local-typedefs]
typedef typename String_type::value_type Char_type;
^
Makefile:1656: recipe for target 'build/statisticspage.o' failed
make: *** [build/statisticspage.o] Error 1
make: *** Waiting for unfinished jobs....

QT version does not compile.