[Buildroot] Analysis of build failures

[Angelo Compagnucci]

Dear Thomas Petazzoni,

>
>>      powerpc |                   mono-4.0.2.5 | NOK | http://autobuild.buildroot.net/results/f7863af051b2b856280a944749b91ba5b552b53d/
>>          arm |                   mono-4.0.2.5 | NOK | http://autobuild.buildroot.net/results/08ec78b88abd16af8e7fc3c5e7d05eb0dbbe9613/
>>      powerpc |                   mono-4.0.2.5 | NOK | http://autobuild.buildroot.net/results/aebfbd4e7fe46edbd3798563df28b4d89903becd/
>
> locale problem. Angelo, can you investigate ?

I investigate the problem and there is a redefinition of function
vasprintf in mono. The configure script should guess if the vasprintf
is missing and compile the internal one only in this case.
Unfortunately, it fails to make a proper detection and compiles the
internal also in case the function is already present.
Actually I brutally delete form Makefile.am the inclusion of
vasprintf.c from compilation and it works, but it's the best patch.
Have you any hint on this matter?

Thank you!