Index: uspace/lib/c/include/setjmp.h
===================================================================
--- uspace/lib/c/include/setjmp.h	(revision 4805495a910f793f8918c13f029a38a5bb548154)
+++ uspace/lib/c/include/setjmp.h	(revision 3e828ea40985ce126affd5d7faa6ba679802b4db)
@@ -34,10 +34,9 @@
 #define _LIBC_SETJMP_H_
 
-#ifdef __cplusplus
-extern "C" {
-#endif
-
 #include <libarch/fibril_context.h>
 #include <_bits/__noreturn.h>
+#include <_bits/decls.h>
+
+__C_DECLS_BEGIN;
 
 typedef __context_t jmp_buf[1];
@@ -46,10 +45,9 @@
 extern __noreturn void __context_restore(__context_t *, int);
 
-#define setjmp __context_save
 extern __noreturn void longjmp(jmp_buf, int);
 
-#ifdef __cplusplus
-}
-#endif
+__C_DECLS_END;
+
+#define setjmp __context_save
 
 #endif