From f5fb419ff3bc723f974b0538dce1c51a81c33484 Mon Sep 17 00:00:00 2001
From: Chet Ramey <chet.ramey@case.edu>
Date: Fri, 7 Feb 2020 14:58:55 -0500
Subject: [PATCH] problems restoring the history file are not signaled
 correctly to the calling application

---
 readline/readline/histfile.c | 2 ++
 readline/readline/patchlevel | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/readline/readline/histfile.c b/readline/readline/histfile.c
index 6c3adc9bd8..8eb3496687 100644
--- a/readline/readline/histfile.c
+++ b/readline/readline/histfile.c
@@ -620,6 +620,7 @@ history_truncate_file (const char *fname, int lines)
 
   if (rv != 0)
     {
+      rv = errno;
       if (tempname)
 	unlink (tempname);
       history_lines_written_to_file = 0;
@@ -767,6 +768,7 @@ mmap_error:
 
   if (rv != 0)
     {
+      rv = errno;
       if (tempname)
 	unlink (tempname);
       history_lines_written_to_file = 0;
diff --git a/readline/readline/patchlevel b/readline/readline/patchlevel
index ce3e355653..626a945e08 100644
--- a/readline/readline/patchlevel
+++ b/readline/readline/patchlevel
@@ -1,3 +1,3 @@
 # Do not edit -- exists only for use by patch
 
-3
+4