Add a patch for binutils 2.23.1

Without this patch, binutils fails to compile.
This patch will not be needed for binutils 2.24.
fix binutils build with new gcc versions

disabling -Werror while building binutils ignores the following
warnings on systems using -Werror and -Wall by default:

    -Wunused-value
bump gcc to newer revision

gcc 4.7.4 builds with texinfo versions 5.x .
Merge pull request #61 from sudoman/sudoman-fixes

minimal changes to fix the toolchain build process on some newer systems