Can't build testscanner.exe on Windows

[drizt]

I got this errors

CMakeFiles\testscanner.dir/objects.a(testscanner.cpp.obj):testscanner.cpp:(.text+0x6428): undefined reference to `JSonScanner::JSonScanner(QIODevice*)'
CMakeFiles\testscanner.dir/objects.a(testscanner.cpp.obj):testscanner.cpp:(.text+0x64a7): undefined reference to `JSonScanner::yylex(QVariant*, yy::location*)'
CMakeFiles\testscanner.dir/objects.a(testscanner.cpp.obj):testscanner.cpp:(.text+0x6536): undefined reference to `JSonScanner::~JSonScanner()'
CMakeFiles\testscanner.dir/objects.a(testscanner.cpp.obj):testscanner.cpp:(.text+0x6565): undefined reference to `JSonScanner::~JSonScanner()'
CMakeFiles\testscanner.dir/objects.a(testscanner.cpp.obj):testscanner.cpp:(.text+0x6733): undefined reference to `JSonScanner::JSonScanner(QIODevice*)'
CMakeFiles\testscanner.dir/objects.a(testscanner.cpp.obj):testscanner.cpp:(.text+0x674f): undefined reference to `JSonScanner::allowSpecialNumbers(bool)'
CMakeFiles\testscanner.dir/objects.a(testscanner.cpp.obj):testscanner.cpp:(.text+0x67ce): undefined reference to `JSonScanner::yylex(QVariant*, yy::location*)'
CMakeFiles\testscanner.dir/objects.a(testscanner.cpp.obj):testscanner.cpp:(.text+0x67f2): undefined reference to `JSonScanner::yylex(QVariant*, yy::location*)'
CMakeFiles\testscanner.dir/objects.a(testscanner.cpp.obj):testscanner.cpp:(.text+0x6e76): undefined reference to `JSonScanner::~JSonScanner()'
CMakeFiles\testscanner.dir/objects.a(testscanner.cpp.obj):testscanner.cpp:(.text+0x7149): undefined reference to `JSonScanner::~JSonScanner()'
CMakeFiles\testscanner.dir/objects.a(testscanner.cpp.obj):testscanner.cpp:(.text+0x73e3): undefined reference to `JSonScanner::~JSonScanner()'
CMakeFiles\testscanner.dir/objects.a(testscanner.cpp.obj):testscanner.cpp:(.text+0x7661): undefined reference to `JSonScanner::JSonScanner(QIODevice*)'
CMakeFiles\testscanner.dir/objects.a(testscanner.cpp.obj):testscanner.cpp:(.text+0x7676): undefined reference to `JSonScanner::allowSpecialNumbers(bool)'
CMakeFiles\testscanner.dir/objects.a(testscanner.cpp.obj):testscanner.cpp:(.text+0x76f5): undefined reference to `JSonScanner::yylex(QVariant*, yy::location*)'
CMakeFiles\testscanner.dir/objects.a(testscanner.cpp.obj):testscanner.cpp:(.text+0x77d0): undefined reference to `JSonScanner::~JSonScanner()'
CMakeFiles\testscanner.dir/objects.a(testscanner.cpp.obj):testscanner.cpp:(.text+0x7b53): undefined reference to `JSonScanner::~JSonScanner()'
CMakeFiles\testscanner.dir/objects.a(testscanner.cpp.obj):testscanner.cpp:(.text+0x7b84): undefined reference to `JSonScanner::~JSonScanner()'
C:/Qt/Qt5.3.1/Tools/mingw482_32/bin/../lib/gcc/i686-w64-mingw32/4.8.2/../../../../i686-w64-mingw32/bin/ld.exe: CMakeFiles\testscanner.dir/objects.a(testscanner.cpp.obj): bad reloc address 0x4 in section `.data'

Problem in JsonScanner class. It's internal class which hasn't QJSON_EXPORT. Windows requires some special attributes for classes/functions in shared libs. So JsonScanner must be defined with QJSON_EXPORT or testscanner must be linked against ./src/CMakeFiles/qjson.dir/json_scanner.cpp.obj.