1 files changed, 2 insertions, 0 deletions

diff --git a/5.20/err.h b/5.20/err.h
new file mode 100644
index 0000000..72dee29
--- /dev/null
+++ b/5.20/err.h
@@ -0,0 +1,2 @@
+void err(char *s);
+void warn(char *s);