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-rw-r--r--ext/socket/option.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/ext/socket/option.c b/ext/socket/option.c
index 37315629f2..fe3cc6c02c 100644
--- a/ext/socket/option.c
+++ b/ext/socket/option.c
@@ -452,8 +452,8 @@ inet_ntop(int af, const void *addr, char *numaddr, size_t numaddr_len)
#endif
return numaddr;
}
-#elif !defined HAVE_ARPA_INET_H
-extern char *inet_ntop(int af, const void *addr, char *numaddr, size_t numaddr_len);
+#elif defined _WIN32
+# define inet_ntop(f,a,n,l) rb_w32_inet_ntop(f,a,n,l)
#endif
/* Although the buffer size needed depends on the prefixes, "%u" may generate "4294967295". */