buildroot to build toolchain on Linux

Hi hippo,

thanks for the patch for jtag_uart.

The other error is fixed : it can be useful for other : when I first compiled buildroot, I had an error about 2 missing files (ansidecl.h and symcat.h) when compiling elf2flt. To fix this I made a find, and I found them in gcc3 sources, so I made a symlink to them. This is dangerous because it worked with no error, but apparently it was not the right files... I installed binutils-dev (the debian package, which contains those files), and it works correctly now.

Thanks again

Pierre-olivier