build failure trying to build gcc cross-compiler

["Shragai, Yaron" <yshragai@draper.com>]

Hello,
I am trying to build the Tianocore source from https://github.com/tianocore/edk2, as per the instructions here: https://github.com/tianocore/tianocore.github.io/wiki/Common-instructions-for-Unix

I am runnin on a Virtualbox VM running Ubuntu Desktop LTS.

I get as far as the "Build gcc x64 UEFI cross compiler" section.
The script mingw-gcc-build.py contains hardcoded references to download binutils and gcc.
In the case of binutils, it references a version that no longer exists in the archive (version 2.20.51.0.5).
In the case of gcc, it references version 4.3.0, on ftpmirror.gnu.org/gcc/, which redirects to other mirror sites, many of which are blocked by my firewall.
I tried getting around this by downloaded the files myself, and commented out the part of the script that downloads the sources (the call to sources.GetAll() - lines 553-558).
I downloaded binutils version 2.24.51.0.2, and gcc vesion 2.24.51.0.2.
It appears that binutils built, but gcc is not building.
Any advice?
Is there an updated version of mingw-gcc-build.py?

Extracting ./src/gcc-4.3.0.tar.bz2:
Extracting ./src/binutils-2.24.51.0.2.tar.bz2:
binutils [config] ... [done]
binutils [build] ... [done]
binutils [install] ... [done]
binutils module is now built and installed
gcc [config] ... [done]
gcc [build] ... [failed!]
Traceback (most recent call last):
  File "./mingw-gcc-build.py", line 564, in <module>
    App()
  File "./mingw-gcc-build.py", line 562, in __init__
    Builder(sources, config).Build()
  File "./mingw-gcc-build.py", line 426, in Build
    self.BuildModule('gcc')
  File "./mingw-gcc-build.py", line 473, in BuildModule
    self.RunCommand(cmd, module, 'build')
  File "./mingw-gcc-build.py", line 511, in RunCommand
    'See output log at %s' % self.config.Relative(logFile)
Exception: Failed to build gcc
See output log at ./build/log.txt

Thanks,
Yaron Shragai
yshragai@draper.com

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