cmake HAVE_NET_PFILT_H examples

CTSRD-CHERI/cheribsd contrib/libpcap/CMakeLists.txt :1885 

check_include_file(net/pfilt.h HAVE_NET_PFILT_H)

CTSRD-CHERI/cheribsd contrib/libpcap/CMakeLists.txt :1906 

elseif(HAVE_NET_PFILT_H)

asset-group/5ghoul-5g-nr-attacks libs/libpcap/CMakeLists.txt :1170 

check_include_file(net/pfilt.h HAVE_NET_PFILT_H)

asset-group/5ghoul-5g-nr-attacks libs/libpcap/CMakeLists.txt :1190 

elseif(HAVE_NET_PFILT_H)