AIX fixes

Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/client.c b/client.c
index 8d066c5..97bfc89 100644
--- a/client.c
+++ b/client.c
@@ -8,7 +8,7 @@
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <sys/wait.h>
-#include <sys/mman.h>
+#include <sys/socket.h>
 #include <netinet/in.h>
 #include <arpa/inet.h>
 #include <netdb.h>
diff --git a/os/os-aix.h b/os/os-aix.h
index ccf3bb2..d21e573 100644
--- a/os/os-aix.h
+++ b/os/os-aix.h
@@ -25,10 +25,17 @@
 #define OS_MAP_ANON		MAP_ANON
 #define OS_MSG_DONTWAIT		0
 
-#warning "Assuming big endian on AIX, fix me up"
+#if BYTE_ORDER == BIG_ENDIAN
 #define FIO_BIG_ENDIAN
+#else
+#define FIO_LITTLE_ENDIAN
+#endif
+
 #define FIO_USE_GENERIC_SWAP
 
+#define FIO_OS_HAVE_SOCKLEN_T
+#define fio_socklen_t socklen_t
+
 static inline int blockdev_invalidate_cache(struct fio_file *f)
 {
 	return EINVAL;
diff --git a/server.c b/server.c
index 07f3216..29e2387 100644
--- a/server.c
+++ b/server.c
@@ -8,7 +8,7 @@
 #include <sys/poll.h>
 #include <sys/types.h>
 #include <sys/wait.h>
-#include <sys/mman.h>
+#include <sys/socket.h>
 #include <netinet/in.h>
 #include <arpa/inet.h>
 #include <netdb.h>