Changed indentation ... :)

configure.in

@@ -13,9 +13,9 @@ AM_PROG_CC_C_O
 AC_GNU_SOURCE
 AC_PROG_LIBTOOL
 AC_CHECK_HEADERS([linux/netlink.h linux/genetlink.h], [], AC_MSG_ERROR([netlink headers not found]),
-				  [#include <linux/types.h>
-				   #include <bits/sockaddr.h>
-				   #include <linux/socket.h>])
+[#include <linux/types.h>
+#include <bits/sockaddr.h>
+#include <linux/socket.h>])
 AC_PROG_GCC_TRADITIONAL
 
 if test "x$GCC" = "xyes"; then