From 3d957f444c6aebbd86cd1a6a843ae33d700a6b98 Mon Sep 17 00:00:00 2001
From: Rodrigo Arias <rodrigo.arias@bsc.es>
Date: Tue, 21 Mar 2023 16:18:41 +0100
Subject: [PATCH] Only ignore clock table on ENOENT

---
 src/emu/system.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/emu/system.c b/src/emu/system.c
index cc30db2..07914a4 100644
--- a/src/emu/system.c
+++ b/src/emu/system.c
@@ -337,7 +337,7 @@ load_clock_offsets(struct clkoff *clkoff, struct emu_args *args)
 	FILE *f = fopen(offset_file, "r");
 
 	if (f == NULL) {
-		if (is_optional)
+		if (is_optional && errno == ENOENT)
 			return 0;
 
 		err("fopen %s failed:", offset_file);