This is GCC tool chain for H8/300H (h8300-linux-elf).
  binutils 2.16.1
  gcc 3.4.3
  newlib 1.13.0
  gdb 5.2.1

There is source package and binary package.
The binary package was compiled on Debian GNU/Linux 5.0 by GCC 3.4.
The source package has build script in each "BUILD" dir.