Building on ArchLinux: qtdeclarative: qv4compiler.cpp: QStringList 'strings' incomplete type.

[Quasaur]

Running ArchLinux _x86_64 (3.11.6) in VirtualBox

(1) I've successfully built & installed Wayland & Weston according to this:

http://qt-project.org/wiki/QtWayland

(2) I got to the point where i make the qtdeclarative dependency and got the following error:
@
compiler/qv4compiler.cpp:42:0:
compiler/qv4compiler_p.h:83:17: error: field strings has incomplete type QStringList strings

compiler/qv4compiler.cpp: In member function int QV4::Compiler::JSUnitGenerator::registerString(const QString&):

compiler/qv4compiler.cpp:62:28: error strings was not declared in this scope stringToId.insert(str, strings.size());
@
...and so forth.

I'm trying to build an evironment to create Qt apps using Clozure CL...please assist!

[Quasaur]

SOLVED: I used the instructions here:

http://qt-project.org/wiki/Building_Qt_5_from_Git

but i dont understand why, on an x86_64 platform qtwayland wont compile without Wayland-egl support...???