cmake HAVE_SYS_NET_NIT_H examples

CTSRD-CHERI/cheribsd contrib/libpcap/CMakeLists.txt :1888 

check_include_file(sys/net/nit.h HAVE_SYS_NET_NIT_H)

CTSRD-CHERI/cheribsd contrib/libpcap/CMakeLists.txt :1921 

elseif(HAVE_SYS_NET_NIT_H)

asset-group/5ghoul-5g-nr-attacks libs/libpcap/CMakeLists.txt :1173 

check_include_file(sys/net/nit.h HAVE_SYS_NET_NIT_H)

asset-group/5ghoul-5g-nr-attacks libs/libpcap/CMakeLists.txt :1205 

elseif(HAVE_SYS_NET_NIT_H)