Index: uspace/lib/c/include/dlfcn.h
===================================================================
--- uspace/lib/c/include/dlfcn.h	(revision 4805495a910f793f8918c13f029a38a5bb548154)
+++ uspace/lib/c/include/dlfcn.h	(revision bc73be3215c832cdb0c8a5022db800902f9f62dc)
@@ -37,6 +37,12 @@
 #define _LIBC_DLFCN_H_
 
+#include <_bits/decls.h>
+
+__C_DECLS_BEGIN;
+
 void *dlopen(const char *, int);
 void *dlsym(void *, const char *);
+
+__C_DECLS_END;
 
 #endif