-extern int __gcov_execl (const char *, const char *, ...);
-extern int __gcov_execlp (const char *, const char *, ...);
-extern int __gcov_execle (const char *, const char *, ...);
-extern int __gcov_execv (const char *, char *const []);
-extern int __gcov_execvp (const char *, char *const []);
-extern int __gcov_execve (const char *, char *const [], char *const []);
+extern int __gcov_execl (const char *, const char *, ...) ATTRIBUTE_HIDDEN;
+extern int __gcov_execlp (const char *, const char *, ...) ATTRIBUTE_HIDDEN;
+extern int __gcov_execle (const char *, const char *, ...) ATTRIBUTE_HIDDEN;
+extern int __gcov_execv (const char *, char *const []) ATTRIBUTE_HIDDEN;
+extern int __gcov_execvp (const char *, char *const []) ATTRIBUTE_HIDDEN;
+extern int __gcov_execve (const char *, char *const [], char *const [])
+ ATTRIBUTE_HIDDEN;