Index: uspace/lib/ext4/Makefile
===================================================================
--- uspace/lib/ext4/Makefile	(revision 2674db6a4e996ff801e50122dc47e7e23ce0e20c)
+++ uspace/lib/ext4/Makefile	(revision 8be96a012921a51d1df863ec231b4da721c73676)
@@ -29,6 +29,6 @@
 USPACE_PREFIX = ../..
 LIBRARY = libext4
-EXTRA_CFLAGS = -I$(LIBBLOCK_PREFIX)
-LIBS = $(LIBBLOCK_PREFIX)/libblock.a
+EXTRA_CFLAGS = -I$(LIBBLOCK_PREFIX) -I$(LIBPOSIX_PREFIX)
+LIBS = $(LIBBLOCK_PREFIX)/libblock.a $(LIBPOSIX_PREFIX)/libposix.a 
 
 SOURCES = \