Otherwise build breaks with:
fping.c:399:14: error: ‘ident6’ undeclared (first use in this function); did you mean ‘ident4’?
399 | ident4 = ident6 = getpid() & 0xFFFF;
| ^~~~~~
| ident4
Signed-off-by: Lars Wendler <polynomial-c@gentoo.org>
char* prog;
int ident4 = 0; /* our icmp identity field */
+int ident6 = 0;
int socket4 = -1;
int using_sock_dgram4 = 0;
#ifndef IPV6
int hints_ai_family = AF_INET;
#else
-int ident6 = 0;
int socket6 = -1;
int hints_ai_family = AF_UNSPEC;
#endif