diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c
index ef0a42a..19d62b8 100644
--- a/Modules/posixmodule.c
+++ b/Modules/posixmodule.c
@@ -113,6 +113,9 @@
 extern int rename(const char *, const char *);
 extern int pclose(FILE *);
 extern int fclose(FILE *);
+extern int fsync(int);
+extern int lstat(const char *, struct stat *);
+extern int symlink(const char *, const char *);
 #endif
 
 #ifdef NeXT