error during build of mork_helper, on illumos/xstreamos

I have this error now going on the build process:
S=/sources/sonicle/xstream-desktop-gate/components/libreoffice/libreoffice/libreoffice-4.4.0.3 & 
I=$S/instdir & W=$S/workdir &  /usr/gcc/4.7/bin/g++    -Wl,-z,origin 
'-Wl,-rpath,$ORIGIN/../Library' -L$I/ure/lib -L$I/program -L/usr/gcc/4.7/lib -L/lib -L/usr/lib 
-Wl,-z,combreloc  -L$W/LinkTarget/StaticLibrary -L$I/sdk/lib  -L$I/ure/lib  -L$I/program  
-L$W/LinkTarget/Library    $W/CxxObject/connectivity/source/drivers/mork/mork_helper.o     
-Wl,--start-group   -lm -lnsl -lsocket -lstdc++  -Wl,--end-group -Wl,-zrecord -luno_cppu 
-luno_cppuhelpergcc3 -lmorklo -luno_sal -o $W/LinkTarget/Executable/mork_helper
Undefined                       first referenced
symbol                             in file
X11OpenGLDeviceInfo::isDeviceBlocked()      
/sources/sonicle/xstream-desktop-gate/components/libreoffice/libreoffice/libreoffice-4.4.0.3/instdir/program/libvcllo.so
X11OpenGLDeviceInfo::~X11OpenGLDeviceInfo() 
/sources/sonicle/xstream-desktop-gate/components/libreoffice/libreoffice/libreoffice-4.4.0.3/instdir/program/libvcllo.so
X11OpenGLDeviceInfo::X11OpenGLDeviceInfo() 
/sources/sonicle/xstream-desktop-gate/components/libreoffice/libreoffice/libreoffice-4.4.0.3/instdir/program/libvcllo.so
Looks like some LO code is not built for some reason, leaving out those X11OpenGLDeviceInfo 
functions?
Any help?
Gabriele.