Re: [dpdk-dev] [PATCH] Add build option to enable/disable AVX2 support

["Wiles, Keith" <keith.wiles@intel.com>]

From: Felix Moessbauer <felix.moessbauer@siemens.com>
Date: Monday, October 26, 2020 at 9:31 AM
To: Wiles, Keith <keith.wiles@intel.com>
Cc: dev@dpdk.org <dev@dpdk.org>, henning.schild@siemens.com <henning.schild@siemens.com>, Felix Moessbauer <felix.moessbauer@siemens.com>
Subject: [PATCH] Add build option to enable/disable AVX2 support
This patch introduces a meson option to disable the AVX2 support.
If the build should be for a target without AVX2 support, the
know can be turned to false, even if the compiler supports AVX2.

Signed-off-by: Felix Moessbauer <felix.moessbauer@siemens.com>
---
 meson.build       | 3 ++-
 meson_options.txt | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/meson.build b/meson.build
index 0ee98be..2e2380c 100644
--- a/meson.build
+++ b/meson.build
@@ -18,7 +18,8 @@ pktgen_conf = configuration_data()
 cc = meson.get_compiler('c')

 add_project_arguments('-march=native', language: 'c')
-if cc.has_argument('-mavx2')
+
+if get_option('enable-avx2') and cc.has_argument('-mavx2')
         add_project_arguments('-mavx2', language: 'c')
 endif
 add_project_arguments('-DALLOW_EXPERIMENTAL_API', language: 'c')
diff --git a/meson_options.txt b/meson_options.txt
index 7b42577..c419517 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -1,3 +1,4 @@
 option('enable_lua', type: 'boolean', value: false, description: 'Enable Lua support')
 option('enable_gui', type: 'boolean', value: false, description: 'build the gui')
 option('enable_docs', type: 'boolean', value: false, description: 'build documentation')
+option('enable-avx2', type: 'boolean', value: true, description: 'compile with AVX2 support')
--
2.20.1

Merged into pktgen-dpdk and new version pushed to repo pktgen-20.10.1, thanks