Index: uspace/lib/c/include/stdio.h
===================================================================
--- uspace/lib/c/include/stdio.h	(revision 0fa34dda5c55295515ecd984f5b5364c4e1d0206)
+++ uspace/lib/c/include/stdio.h	(revision 8ab339ee4291afd48eb29bdd555dd3e0c9ceeee1)
@@ -143,4 +143,5 @@
 
 extern void setvbuf(FILE *, void *, int, size_t);
+extern void setbuf(FILE *, void *);
 
 /* Misc file functions */