-# ifndef CMSG_ALIGN
-# ifdef _CMSG_DATA_ALIGN
-# define CMSG_ALIGN(len) _CMSG_DATA_ALIGN(len)
-# else
- /* aligning to sizeof (long) is assumed to be portable (fd.o#40235) */
-# define CMSG_ALIGN(len) (((len) + sizeof (long) - 1) & ~(sizeof (long) - 1))
-# endif
-# 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
+#ifndef CMSG_ALIGN
+#ifdef _CMSG_DATA_ALIGN
+#define CMSG_ALIGN(len) _CMSG_DATA_ALIGN(len)
+#else
+/* aligning to sizeof (long) is assumed to be portable (fd.o#40235) */
+#define CMSG_ALIGN(len) (((len) + sizeof(long) - 1) & ~(sizeof(long) - 1))
+#endif
+#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