QT 5 Failure

[Phipo NEO <phipo.research%free.fr@localhost>]

Hi,
I've NetBSD 7.0 with pkgsrc2015Q4 on i386 architecture, i'am try to install QT 5 for C++ development, i've doing make install on port /usr/pkgsrc/x11/qt5, but i've issue.
this is my output :

Code:

tools/CodeProfiling.cpp:81:66: error: 'REG_EBP' was not declared in this scope
                           reinterpret_cast<void**>(context.gregs[REG_EBP]));
                                                                  ^
Makefile._javascript_Core.Target:77124: recipe for target '.obj/tools/CodeProfiling.lo' failed
gmake[2]: *** [.obj/tools/CodeProfiling.lo] Error 1
gmake[2]: Leaving directory '/usr/pkgsrc/x11/qt5-qtwebkit/work/qtwebkit-opensource-src-5.5.1/Source/_javascript_Core'
Makefile._javascript_Core:102: recipe for target 'sub-Target-pri-all-ordered' failed
gmake[1]: *** [sub-Target-pri-all-ordered] Error 2
gmake[1]: Leaving directory '/usr/pkgsrc/x11/qt5-qtwebkit/work/qtwebkit-opensource-src-5.5.1/Source/_javascript_Core'
Makefile:99: recipe for target 'sub-Source-_javascript_Core-_javascript_Core-pro-all-ordered' failed
gmake: *** [sub-Source-_javascript_Core-_javascript_Core-pro-all-ordered] Error 2
*** Error code 2

Stop.
make[4]: stopped in /usr/pkgsrc/x11/qt5-qtwebkit
*** Error code 1

Stop.
make[3]: stopped in /usr/pkgsrc/x11/qt5-qtwebkit
*** Error code 1

Stop.
make[2]: stopped in /usr/pkgsrc/x11/qt5-qttools
*** Error code 1

Stop.
make[1]: stopped in /usr/pkgsrc/x11/qt5-qtdoc
*** Error code 1

Stop.
make: stopped in /usr/pkgsrc/x11/qt5
dct-petrole#

How can i get around this issue ?

Regards
Philippe