Changes between Version 12 and Version 13 of Linux build instructions

Linux build instructions

v12	v13
47	47	Note that !VirtualBox makes use of YASM as its assembler which is part of the source repository as the currently available releases of YASM contain various bugs. As soon as a working release becomes officially available, we will add YASM to the list of prerequisites.
48	48
49		~~If you use GCC 4.x for building !VirtualBox, the build system will use precompiled objects for the recompiler as compiling this module currently only works with GCC 3.x~~.
	49	Building on a 64bit host still requires 32bit libraries and build tools as the Guest Additions which are part of the build process are 32bit.
50	50
51	51	== Building !VirtualBox ==