Provide a compatible declaration of CMSG_ALIGN

Some platforms (like OSX) do support some of the CMGS macros, but don't
have a CMSG_ALIGN macro of their own.

Signed-off-by: Jakub Hrozek <jakub.hrozek@gmail.com>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>

diff --git a/lib/socket_wrapper/socket_wrapper.c b/lib/socket_wrapper/socket_wrapper.c
index 903eec21537429fc69ea4979094888cf71c244a0..930ab58cc5e6cc7e9d86f311d27bdbd2ac808f12 100644 (file)
--- a/lib/socket_wrapper/socket_wrapper.c
+++ b/lib/socket_wrapper/socket_wrapper.c
@@ -3336,7 +3336,7 @@ int ioctl(int s, unsigned long int r, ...)
 # ifdef _ALIGN /* BSD */
 #define CMSG_ALIGN _ALIGN
 # else
-#error NO_CMSG_ALIGN
+#define CMSG_ALIGN(len) (((len) + sizeof(size_t) - 1) & ~(sizeof(size_t) - 1))
 # endif /* _ALIGN */
 #endif /* CMSG_ALIGN */