[DPDK/meson Bug 1644] DPDK may not build on some Intel CPUs using clang < 3.7.0

[bugzilla at dpdk.org]

https://bugs.dpdk.org/show_bug.cgi?id=1644

            Bug ID: 1644
           Summary: DPDK may not build on some Intel CPUs using clang <
                    3.7.0
           Product: DPDK
           Version: unspecified
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: meson
          Assignee: dev at dpdk.org
          Reporter: nandinipersad361 at gmail.com
  Target Milestone: ---

When compiling DPDK with an earlier version than 3.7.0 of clang, CPU flags are
not detected on some Intel platforms such as Intel Broadwell/Skylake (and
possibly future CPUs), and therefore compilation fails due to missing
intrinsics.

Implication:
DPDK will not build when using a clang version < 3.7.0.

Resolution/Workaround:
Use clang 3.7.0 or higher, or gcc.

Affected Environment/Platform:
Platforms with Intel Broadwell/Skylake using an old clang version.

Driver/Module:
Environment Abstraction Layer (EAL).

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