FTBFS update

[Yao Qi]

Michael Hope wrote:
> I've updated
>  https://wiki.linaro.org/MichaelHope/Sandbox/BuildFailures
> 
> to include the six new build failures since yesterday.
> 

Michael,
I went through this list, and found some of them also appears in ubuntu
build failures shown in,
http://udd.debian.org/cgi-bin/ubuntu_ftbfs.cgi

Bug #605251 pyao fails to build from source with Linaro toolchain
Bug #605248 ppp fails to build from source with Linaro toolchain
Bug #604858 apt fails to build from source with Linaro toolchain
Bug #604860 aptitude fails to build from source

So they are not linaro-gcc specific bugs.  Shall we move them to
somewhere else or change to "Invalid"?