+dnl Check if dirent (readdir) supports d_type member.
+AC_STRUCT_DIRENT_D_TYPE
+
+dnl Check if stat has the required fields.
+AC_STRUCT_ST_BLOCKS
+AC_CHECK_MEMBER([struct stat.st_blksize],[
+ AC_DEFINE([HAVE_STRUCT_STAT_ST_BLKSIZE],[1],[Define to 1 if 'st_blksize' is a member of 'struct stat'])])
+