Hi Thomas,

> From: Thomas Monjalon [mailto:thomas.monjalon at 6wind.com]
> Sent: Tuesday, April 19, 2016 5:59 AM
> 
> 2016-03-31 19:15, Rasesh Mody:
> > +ifeq ($(OS_TYPE),Linux)
> > +CFLAGS_ECORE_DRIVER += -Wno-shift-negative-value endif
> 
> I see an error with clang:
> fatal error: unknown warning option '-Wno-shift-negative-value';
>       did you mean '-Wno-shift-sign-overflow'?

We had compiled all our v5 driver patches against clang v3.8 on  RH7.1 and 
didn't see a similar error. 
         "clang version 3.8.0 (trunk 249596) (llvm/trunk 249595)"

The '-Wno-shift-negative-value' option only got introduced after 3.6.0 clang 
release.  Pls. let us know if we need to support a minimum version of clang. We 
had asked this question earlier in the dpdk community, however we didn't hear 
back from anyone so far.

Thanks!
Rasesh

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