net/af_xdp: simplify meson build specification

  The build spec has lots of levels of indentation, which can be reduced by
not explicitly checking for linux, but for the needed header and library
files needed for the driver.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
---
 drivers/net/af_xdp/meson.build | 25 +++++++++++--------------
 1 file changed, 11 insertions(+), 14 deletions(-)
  

On 4/5/2019 4:33 PM, Bruce Richardson wrote:
> The build spec has lots of levels of indentation, which can be reduced by
> not explicitly checking for linux, but for the needed header and library
> files needed for the driver.
> 
> Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
> ---
>  drivers/net/af_xdp/meson.build | 25 +++++++++++--------------
>  1 file changed, 11 insertions(+), 14 deletions(-)
> 
> diff --git a/drivers/net/af_xdp/meson.build b/drivers/net/af_xdp/meson.build
> index 840c93728..7904840f0 100644
> --- a/drivers/net/af_xdp/meson.build
> +++ b/drivers/net/af_xdp/meson.build
> @@ -1,19 +1,16 @@
>  # SPDX-License-Identifier: BSD-3-Clause
>  # Copyright(c) 2019 Intel Corporation
>  
> -if host_machine.system() == 'linux'
> -	bpf_dep = dependency('libbpf', required: false)
> -	if bpf_dep.found()
> -		build = true
> -	else
> -		bpf_dep = cc.find_library('bpf', required: false)
> -		if bpf_dep.found() and cc.has_header('bpf/xsk.h', dependencies: bpf_dep) and cc.has_header('linux/if_xdp.h')
> -			build = true
> -			pkgconfig_extra_libs += '-lbpf'
> -		else
> -			build = false
> -		endif
> -	endif
> +sources = files('rte_eth_af_xdp.c')
> +
> +bpf_dep = dependency('libbpf', required: false)
> +if not bpf_dep.found()
> +	bpf_dep = cc.find_library('bpf', required: false)
> +endif
> +
> +if bpf_dep.found() and cc.has_header('bpf/xsk.h') and cc.has_header('linux/if_xdp.h')
>  	ext_deps += bpf_dep
> +	pkgconfig_extra_libs += '-lbpf'
> +else
> +	build = false
>  endif
> -sources = files('rte_eth_af_xdp.c')
> 

Looks good to me.
  

On 4/5/2019 4:33 PM, Bruce Richardson wrote:
> The build spec has lots of levels of indentation, which can be reduced by
> not explicitly checking for linux, but for the needed header and library
> files needed for the driver.
> 
> Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>

Squashed into relevant commit in next-net, thanks.