Re: cc1.exe: warnings being treated as errors

[Andrew Haley <aph at redhat dot com>]

On 09/26/2011 05:11 PM, Ian Lance Taylor wrote:
> Andrew Haley <aph@redhat.com> writes:
> 
>> On 09/19/2011 06:59 PM, Jon Grant wrote:
>>
>>>
>>> I noticed that when compiling C files with GCC and using the -Werror
>>> option, I see this additional output:
>>>
>>> cc1.exe: warnings being treated as errors
>>> ./src/main.c: In function 'main':
>>> ./src/main.c:41:15: error: unused variable 'hello'
>>>
>>> Is the "cc1" line output needed?
>>
>> Oh, sure.  It's really helpful to see an explanation as to why the
>> compilation stopped on an apparently legal C program.
> 
> In the past, definitely, but today I'm going to argue that now that
> -fdiagnostics-show-option is the default, we can reasonably remove that
> line.  Consider:
> 
> foo.c: In function âfooâ:
> foo.c:1:18: error: unused variable âhelloâ [-Werror=unused-variable]
> cc1: all warnings being treated as errors
> 
> The -Werror= tag output by -fdiagnostics-show-option provides all the
> required information.

That's probably true.

Andrew.