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-rw-r--r--ext/socket/socket.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/ext/socket/socket.c b/ext/socket/socket.c
index 113b60c0cd..2badf1b27c 100644
--- a/ext/socket/socket.c
+++ b/ext/socket/socket.c
@@ -185,6 +185,12 @@ ruby_getaddrinfo__aix(char *nodename, char *servname,
}
#undef getaddrinfo
#define getaddrinfo(node,serv,hints,res) ruby_getaddrinfo__aix((node),(serv),(hints),(res))
+#ifndef CMSG_SPACE
+# define CMSG_SPACE(len) (_CMSG_ALIGN(sizeof(struct cmsghdr)) + _CMSG_ALIGN(len))
+#endif
+#ifndef CMSG_LEN
+# define CMSG_LEN(len) (_CMSG_ALIGN(sizeof(struct cmsghdr)) + (len))
+#endif
#endif
#ifdef __BEOS__