printf "Checking for -lnfnetlink... "
printf "#include <stdint.h>\n#include <netinet/in.h>\n#include <linux/netfilter.h>\nint main() { return 0; }\n" > build_check.c
$CC $CFLAGS $LDFLAGS build_check.c -lnfnetlink -o fake > /dev/null 2> /dev/null
printf "Checking for -lnfnetlink... "
printf "#include <stdint.h>\n#include <netinet/in.h>\n#include <linux/netfilter.h>\nint main() { return 0; }\n" > build_check.c
$CC $CFLAGS $LDFLAGS build_check.c -lnfnetlink -o fake > /dev/null 2> /dev/null