when i do 

1. "C:\Program Files\Meson\meson.exe" --buildtype debug
"-Dc_args=-I\"C:\Program Files\Mellanox\MLNX_WinOF2_DevX_SDK\inc\""
"-Dc_link_args=-L\"C:\Program Files\Mellanox\MLNX_WinOF2_DevX_SDK\lib\""
"-Dexamples=udpfwd,flow_filtering,l2fwd,l2fwd_default_flow,helloworld,udpfwd_rss,l2fwd_master,udpfwd_rx_tx_cheksum,l2fwd_rss"
build

2. ninja 

i get 

FAILED:
drivers/common/idpf/6e54547@@idpf_common_avx512_lib@sta/idpf_common_rxtx_avx512.c.obj
clang
@drivers/common/idpf/6e54547@@idpf_common_avx512_lib@sta/idpf_common_rxtx_avx512.c.obj.rsp
In file included from ../drivers/common/idpf/idpf_common_rxtx_avx512.c:6:
In file included from ..\drivers\common\idpf/idpf_common_device.h:9:
In file included from ..\drivers\common\idpf/base/idpf_prototype.h:9:
In file included from ..\drivers\common\idpf/base/idpf_osdep.h:18:
In file included from ..\lib\eal\include\rte_malloc.h:16:
In file included from ..\lib\eal\include\rte_memory.h:25:
In file included from ..\lib\eal\include\rte_fbarray.h:39:
In file included from ..\lib\eal\x86\include\rte_rwlock.h:13:
In file included from ..\lib\eal\x86\include/rte_spinlock.h:18:
In file included from ..\lib\eal\x86\include/rte_cycles.h:12:
In file included from C:\Program
Files\LLVM\lib\clang\11.0.0\include\x86intrin.h:24:
C:\Program Files\LLVM\lib\clang\11.0.0\include\prfchwintrin.h:50:1: error:
conflicting types for '__m_prefetchw'
_m_prefetchw(void *__P)
^
..\lib\eal\windows\include\rte_windows.h:28:22: note: expanded from macro
'_m_prefetchw'
#define _m_prefetchw __m_prefetchw
                     ^
C:\Program Files (x86)\Windows Kits\10\include\10.0.22000.0\um\winnt.h:3538:1:
note: previous declaration is here
_m_prefetchw (
^
..\lib\eal\windows\include\rte_windows.h:28:22: note: expanded from macro
'_m_prefetchw'
#define _m_prefetchw __m_prefetchw
                     ^
1 error generated.
[131/810] Compiling C object
drivers/a715181@@tmp_rte_common_mlx5@sta/common_mlx5_mlx5_devx_cmds.c.obj
ninja: build stopped: subcommand failed.