Add noreturn mark to [p]error_exit(), suggested by Charlie Shepherd.
diff --git a/lib/lib.h b/lib/lib.h
index 6fce34c..07f4a6d 100644
--- a/lib/lib.h
+++ b/lib/lib.h
@@ -43,8 +43,8 @@
void verror_msg(char *msg, int err, va_list va);
void error_msg(char *msg, ...);
void perror_msg(char *msg, ...);
-void error_exit(char *msg, ...);
-void perror_exit(char *msg, ...);
+void error_exit(char *msg, ...) noreturn;
+void perror_exit(char *msg, ...) noreturn;
void *xmalloc(size_t size);
void *xzalloc(size_t size);
void *xrealloc(void *ptr, size_t size);