cmake HAVE_PCAP_GET_SELECTABLE_FD examples

usb-tools/USBProxy-legacy src/cmake/modules/FindPCAP.cmake :120 

CHECK_FUNCTION_EXISTS("pcap_get_selectable_fd" HAVE_PCAP_GET_SELECTABLE_FD)

boundary/wireshark cmake/modules/FindPCAP.cmake :129 

CHECK_FUNCTION_EXISTS("pcap_get_selectable_fd" HAVE_PCAP_GET_SELECTABLE_FD)

gnss-sdr/gnss-sdr cmake/Modules/FindPCAP.cmake :122 

check_function_exists("pcap_get_selectable_fd" HAVE_PCAP_GET_SELECTABLE_FD)