Qt 5.4.0 does not compile statically with -opengl dynamic

Qt 5.4 introduced the very nice '-opengl dynamic' switch to the configure script, but when building with the following configure switches:
-debug-and-release -c++11 -static -ltcg -opengl dynamic -target xp -no-icu -no-angle -mp -nomake examples

I get a compile error:
.\qwindowseglcontext.cpp(236) : error C2039: 'glActiveTexture' : is not a member of '`global namespace''

and several other lines in that init() method saying that 'glActiveTexture' and many others do not belong to the global namespace.
Based on the code of the RESOLVE macro it seems that compiling Qt statically doesn't honor the dynamic binding to the OpenGL library stated by '-opengl dynamic' configure switch.