warning: NULL used in arithmetic

[Tim Prince]

satyaakam@gmail.com wrote:
>> The option -Werror makes warnings fatal.  With the more thorough
>> checking of headers since gcc 4.1, it frequently becomes necessary to
>> prevent -Werror from being set.  If I were to give a personal opinion,
>> the idea of ascribing a numerical value to NULL seems sufficiently
>> objectionable to deserve fatality.
>>
> so if i understand correctly now in gcc 4.1 all warnings are treated
> as errors and it will not let the link phase happen and hence the
> build will fail.
> 
> Satya
No, look for the message like "warnings treated as errors" which means 
that -Werror is set, then, if you wish, figure out how to over-ride with 
-Wno-error, or by removing stuff in your build procedure which sets 
-Werror.  For example, the libcpp and libstdc++ builds contains a 
Makefile macro WERROR, which can be removed so that -Wno-error persists.