[dpdk-dev] [PATCH 1/2] build: fix SVE compile error with gcc8.3

[Thomas Monjalon]

28/06/2021 04:57, Chengwen Feng:
> --- a/config/arm/meson.build
> +++ b/config/arm/meson.build
> @@ -488,3 +488,9 @@ if cc.get_define('__ARM_FEATURE_CRYPTO', args: machine_args) != ''
>      compile_time_cpuflags += ['RTE_CPUFLAG_AES', 'RTE_CPUFLAG_PMULL',
>      'RTE_CPUFLAG_SHA1', 'RTE_CPUFLAG_SHA2']
>  endif
> +
> +# Check whether SVE ACLE is supported and set the corresponding flag which will used with SVE ACLE code.
> +if (cc.get_define('__ARM_FEATURE_SVE', args: machine_args) != '' and
> +        cc.check_header('arm_sve.h'))
> +    dpdk_conf.set('RTE_HAS_SVE_ACLE', 1)
> +endif

Simpler and better sorted:

--- a/config/arm/meson.build
+++ b/config/arm/meson.build
@@ -524,6 +524,9 @@ endif
 
 if cc.get_define('__ARM_FEATURE_SVE', args: machine_args) != ''
     compile_time_cpuflags += ['RTE_CPUFLAG_SVE']
+    if (cc.check_header('arm_sve.h'))
+        dpdk_conf.set('RTE_HAS_SVE_ACLE', 1)
+    endif
 endif