Out of memory compiling RTT

Hi developers,

I'm trying to instyall orocos-2.4.0 toolchain on Embedded motherboard with Vortex86Dx and 510MB of memory and when I use autoporj fas-build, when it arrives to : build rtt (45%) the system crashed with the error:

  Out of memory: kill process 520 (c++) score 5202 or a child
  Killed process 5421 (cc1plus)
Build failed: rtt: failed in build phase
'make -j1' returned status 2
 [45%] Built target orocos-rtt-gnulinux_dynamic
 [45%] Building CXX object rtt/typekit/CMakeFiles/rtt-typekit-gnulinux_plugin.dir/RealTimeTypekitTypes2.cpp.o
 c++: Internal error: Killed (program cc1plus)
 Please submit a full bug report.
 See <file:///usr/share/doc/gcc-4.4/README.Bugs> for instructions.
 make[2]: *** [rtt/typekit/CMakeFiles/rtt-typekit-gnulinux_plugin.dir/RealTimeTypekitTypes2.cpp.o] Error 1
 make[1]: *** [rtt/typekit/CMakeFiles/rtt-typekit-gnulinux_plugin.dir/all] Error 2
 make: *** [all] Error 2

¿?¿? Is necessary more than 510Mb to compile RTT?¿??¿?¿ Thanks in advance Toni