[dpdk-dev] [PATCH] meson: fix compilation with binutils version 2.30

[Thomas Monjalon]

17/01/2019 18:23, Ferruh Yigit:
> On 1/17/2019 5:17 PM, Harry van Haaren wrote:
> > This commit reworks the checks for binutils 2.30 and how
> > the flags to disable AVX512F are passed to the compiler.
> > 
> > Previously the #define for including AVX512 code was set,
> > while the -mno-avx512f argument was given to the compiler.
> > This would cause gcc to correctly refuse to emit AVX512
> > instructions, but the rte_memcpy code that includes AVX512
> > optimizations was being added to the build.
> > 
> > The check for binutils check is now moved to x86 as it is
> > irrelevant for other architectures, and the -mno-avx512f
> > flag is passed to a march_opts array in meson. As the
> > -mno-avx512 flag is added earlier in the build, the code
> > in rte_memcpy is no longer attempted to be compiled.
> > 
> > This commit also adds a message print in the meson configure
> > stage to alert the user of the workaround being employed.
> > 
> > Fixes: a32ca9a4ebc1 ("mk: fix scope of disabling AVX512F support")
> > 
> > Signed-off-by: Harry van Haaren <harry.van.haaren at intel.com>
> 
> Tested-by: Ferruh Yigit <ferruh.yigit at intel.com>
> 
> Thanks for the fix Harry.

Applied (with message reworded as suggested), thanks