title: riscv-tools build on power/ubuntu
body: <p>I'm going through the steps to build the Rocket Emulator and running into a problem. When building riscv-tools, jimtcl appears to not be happy with my machine type. I'm running on a POWER8 box with Ubuntu 16.04.1 LTS on it. </p>
  
  <p>I have been able to build using Ubuntu 17.04 under VirtBox on an X86 laptop and run through the ASM tests.</p>
  
  <p>Error msgs below. Any help or hints/workarounds appreciated...</p>
  
  <p>thanks</p>
  
  <p>=========================================================</p>
  
  <p>Starting RISC-V Toolchain build process</p>
  
  <p>Removing existing riscv-openocd/build directory
  Configuring project riscv-openocd
  Error: /gpfs/ess1fs0/grassi/rocket-chip/riscv-tools/riscv-openocd/jimtcl/autosetup/config.guess: unable to guess system type</p>
  
  <p>This script, last modified 2010-09-24, has failed to recognize the operating system you are using. It is advised that you download the most up to date version of the config scripts from</p>
  
  <pre><code>http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;  f=config.guess;hb=HEAD
  and
  http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD
  
  If the version you run (/gpfs/ess1fs0/grassi/rocket-chip/riscv-tools/riscv-openocd/jimtcl/autosetup/config.guess) is already up to date, please send the following data and any information you think might be
  </code></pre>
  
  <p>pertinent to  in order to provide the needed
  information to handle your system.</p>
  
  <pre><code>config.guess timestamp = 2010-09-24
  
  uname -m = ppc64le
  uname -r = 4.4.0-21-generic
  uname -s = Linux
  uname -v = #37-Ubuntu SMP Mon Apr 18 18:30:22 UTC 2016
  
  /usr/bin/uname -p =
  /bin/uname -X     =
  
  hostinfo               =
  /bin/universe          =
  /usr/bin/arch -k       =
  /bin/arch              =
  /usr/bin/oslevel       =
  /usr/convex/getsysinfo =
  
  UNAME_MACHINE = ppc64le
  UNAME_RELEASE = 4.4.0-21-generic
  UNAME_SYSTEM  = Linux
  UNAME_VERSION = #37-Ubuntu SMP Mon Apr 18 18:30:22 UTC 2016
  child process exited abnormally
  configure: error: ../../jimtcl/configure.gnu failed for jimtcl
  </code></pre>