From 463f0a027a6a6a842bd026979a9aeb841c732bb1 Mon Sep 17 00:00:00 2001
From: Luca Boccassi <luca.boccassi@gmail.com>
Date: Thu, 18 Sep 2025 17:29:41 +0100
Subject: [PATCH] Revert "Bump required minimum version of libfido2 to 1.5.0"
 and add missing def instead

It helps nobody to break compatibility for a missing definition
for printing an error.
Just add the missing definition if not present, as it is already
done for thousands of others from the kernel, glibc, etc.

This partially reverts commit d8b60944f5f752a06ad1553ca77b04b7fea903e9.
---
 README                     | 2 +-
 meson.build                | 1 -
 src/shared/libfido2-util.c | 5 +++++
 3 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/README b/README
index 979807cda6e..eea3a55fbb8 100644
--- a/README
+++ b/README
@@ -245,7 +245,7 @@ REQUIREMENTS:
         gnutls >= 3.1.4 (optional)
         openssl >= 1.1.0 (optional, required to support DNS-over-TLS)
         p11-kit >= 0.23.3 (optional)
-        libfido2 >= 1.5.0 (optional)
+        libfido2 (optional)
         tpm2-tss (optional)
         elfutils >= 158 (optional)
         polkit (optional)
diff --git a/meson.build b/meson.build
index bf58d536f4e..5ae8763afdc 100644
--- a/meson.build
+++ b/meson.build
@@ -1354,7 +1354,6 @@ feature = get_option('libfido2').require(
         conf.get('HAVE_OPENSSL') == 1,
         error_message : 'openssl required')
 libfido2 = dependency('libfido2',
-                      version : '>=1.5.0',
                       required : feature)
 conf.set10('HAVE_LIBFIDO2', libfido2.found())
 
diff --git a/src/shared/libfido2-util.c b/src/shared/libfido2-util.c
index bbca00ceeb8..5bcd5388b0c 100644
--- a/src/shared/libfido2-util.c
+++ b/src/shared/libfido2-util.c
@@ -16,6 +16,11 @@
 #include "strv.h"
 #include "unistd.h"
 
+/* Added in version 1.5.0 */
+#ifndef FIDO_ERR_UV_BLOCKED
+#define FIDO_ERR_UV_BLOCKED 0x3c
+#endif
+
 static void *libfido2_dl = NULL;
 
 DLSYM_PROTOTYPE(fido_assert_allow_cred) = NULL;