Index: uspace/lib/posix/source/stdlib.c
===================================================================
--- uspace/lib/posix/source/stdlib.c	(revision fdf97f669ebc5247e7fa984dc46c925def3c758f)
+++ uspace/lib/posix/source/stdlib.c	(revision 69b264a9735df226a05998fb3c1faab281862562)
@@ -63,4 +63,5 @@
 	// TODO: low priority, just a compile-time dependency of binutils
 	not_implemented();
+	return 1;
 }
 
@@ -232,4 +233,5 @@
 	// TODO: low priority, just a compile-time dependency of binutils
 	not_implemented();
+	return 0;
 }
 
@@ -244,4 +246,5 @@
 int posix_system(const char *string) {
 	// TODO: does nothing at the moment
+	not_implemented();
 	return 0;
 }