Index: uspace/lib/c/include/bitops.h
===================================================================
--- uspace/lib/c/include/bitops.h	(revision aa2b32c3f7c33c46ece6059038015e42595a80de)
+++ uspace/lib/c/include/bitops.h	(revision a269d05ba15fa23f6a68542519bbc125f3993a60)
@@ -107,4 +107,6 @@
 }
 
+extern int __popcountsi2(int);
+
 #endif