https://github.com/libexif/exif/issues/2
https://github.com/libexif/exif/issues/18
https://github.com/libexif/exif/commit/dce6c3a6b3178b2c0206aa9180a51fdcda7fb19f
https://github.com/libexif/exif/commit/dcce831dfe5d12dbf355a08db0b7dc307782f9f0

From dce6c3a6b3178b2c0206aa9180a51fdcda7fb19f Mon Sep 17 00:00:00 2001
From: Marcus Meissner <marcus@jet.franken.de>
Date: Mon, 6 Jul 2020 09:16:07 +0200
Subject: [PATCH] pass in unsinged int, related to
 https://github.com/libexif/exif/issues/2

---
 exif/actions.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/exif/actions.c b/exif/actions.c
index 4498422..b80d670 100644
--- a/exif/actions.c
+++ b/exif/actions.c
@@ -479,7 +479,7 @@ show_ifd (ExifContent *content, void *data)
 }
 
 static void
-print_hline (unsigned char ids, unsigned int screenwidth)
+print_hline (unsigned int ids, unsigned int screenwidth)
 {
         unsigned int i, width;
 
From dcce831dfe5d12dbf355a08db0b7dc307782f9f0 Mon Sep 17 00:00:00 2001
From: Marcus Meissner <marcus@jet.franken.de>
Date: Mon, 6 Jul 2020 09:23:46 +0200
Subject: [PATCH] second fix for https://github.com/libexif/exif/issues/2

---
 exif/actions.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/exif/actions.c b/exif/actions.c
index b80d670..ed245df 100644
--- a/exif/actions.c
+++ b/exif/actions.c
@@ -599,7 +599,7 @@ action_tag_list (ExifData *ed, ExifParams p)
 static void
 show_entry_machine (ExifEntry *e, void *data)
 {
-	unsigned char *ids = data;
+	unsigned int *ids = data;
 	char v[TAG_VALUE_BUF];
 	ExifIfd ifd = exif_entry_get_ifd (e);
 
