--- /dev/null
+/*
+ * (c) The GRASP/AQUA Project, Glasgow University, 1994-
+ *
+ * Directory Runtime Support - prototypes.
+ */
+#ifndef __DIRUTILS_H__
+#define __DIRUTILS_H__
+
+#include <sys/stat.h>
+#include <dirent.h>
+#include <limits.h>
+#include <errno.h>
+#include <unistd.h>
+
+extern HsInt prel_mkdir(HsAddr pathName, HsInt mode);
+extern HsInt prel_lstat(HsAddr fname, HsAddr st);
+
+extern HsInt prel_s_ISDIR(mode_t m);
+extern HsInt prel_s_ISREG(mode_t m);
+
+extern HsInt prel_sz_stat();
+extern HsInt prel_path_max();
+extern mode_t prel_R_OK();
+extern mode_t prel_W_OK();
+extern mode_t prel_X_OK();
+
+extern mode_t prel_S_IRUSR();
+extern mode_t prel_S_IWUSR();
+extern mode_t prel_S_IXUSR();
+
+extern time_t prel_st_mtime(struct stat* st);
+extern mode_t prel_st_mode(struct stat* st);
+
+extern HsAddr prel_d_name(struct dirent* d);
+
+extern HsInt prel_end_of_dir();
+
+#endif /* __DIRUTILS_H__ */