[Mesa-dev] [PATCH 3/9] scons: Disable MSVC signed/unsigned mismatch warnings.

[Roland Scheidegger]

Am 26.11.2014 um 19:47 schrieb jfonseca at vmware.com:
> From: José Fonseca <jfonseca at vmware.com>
> 
> Unfortunately gcc completely ignores the issue, and as result code that
> mixes signed/unsigned is so widespread through the code base end up
> being little more than noise, potentially obscuring more pertinent
> warnings.
> 
> This change disables them.
> ---
>  scons/gallium.py | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/scons/gallium.py b/scons/gallium.py
> index 8e2090b..d9bf760 100755
> --- a/scons/gallium.py
> +++ b/scons/gallium.py
> @@ -462,6 +462,7 @@ def generate(env):
>              ]
>          ccflags += [
>              '/W3', # warning level
> +            '/wd4018', # signed/unsigned mismatch
>              '/wd4244', # conversion from 'type1' to 'type2', possible loss of data
>              '/wd4305', # truncation from 'type1' to 'type2'
>              '/wd4800', # forcing value to bool 'true' or 'false' (performance warning)
> 

I'm pretty sure I've seen gcc warnings about unsigned/signed mismatches
too, there's some options for that. I don't know though if they apply to
exactly the same situations. Either way if they are annoying disabling
them is fine by me, they _usually_ don't tend to be harmful bugs...

Roland