diff -Nru sane-backends-1.1.1/debian/changelog sane-backends-1.1.1/debian/changelog
--- sane-backends-1.1.1/debian/changelog	2022-03-27 13:31:28.000000000 -0300
+++ sane-backends-1.1.1/debian/changelog	2022-09-29 12:20:26.000000000 -0300
@@ -1,3 +1,11 @@
+sane-backends (1.1.1-5ubuntu1) kinetic; urgency=medium
+
+  * New debian/patches/0726-disable-check-equal-stderr.patch:
+   - Workaround for build failure on GCC12 by supressing the print of
+     test mismatch on stderr (LP: #1991293).
+
+ -- Nathan Pratta Teodosio <nathan.teodosio@canonical.com>  Thu, 29 Sep 2022 12:20:26 -0300
+
 sane-backends (1.1.1-5) unstable; urgency=medium
 
   * debian/rules:
diff -Nru sane-backends-1.1.1/debian/control sane-backends-1.1.1/debian/control
--- sane-backends-1.1.1/debian/control	2022-03-27 08:33:44.000000000 -0300
+++ sane-backends-1.1.1/debian/control	2022-09-29 12:20:26.000000000 -0300
@@ -1,7 +1,8 @@
 Source: sane-backends
 Section: graphics
 Priority: optional
-Maintainer: Jörg Frings-Fürst <debian@jff.email>
+Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
+XSBC-Original-Maintainer: Jörg Frings-Fürst <debian@jff.email>
 Standards-Version: 4.6.0
 Build-Depends:
  autoconf,
diff -Nru sane-backends-1.1.1/debian/patches/0726-disable-check-equal-stderr.patch sane-backends-1.1.1/debian/patches/0726-disable-check-equal-stderr.patch
--- sane-backends-1.1.1/debian/patches/0726-disable-check-equal-stderr.patch	1969-12-31 21:00:00.000000000 -0300
+++ sane-backends-1.1.1/debian/patches/0726-disable-check-equal-stderr.patch	2022-09-29 12:19:10.000000000 -0300
@@ -0,0 +1,23 @@
+Description: Build fails on GCC12:
+.
+minigtest.h:43:29: error: no match for ‘operator<<’ (operand types are ‘std::basic_ostream<char>’ and ‘const std::vector<long unsigned int>’)
+minigtest.h:43:29: error: no match for ‘operator<<’ (operand types are ‘std::basic_ostream<char>’ and ‘const std::vector<unsigned char>’)
+minigtest.h:43:29: error: no match for ‘operator<<’ (operand types are ‘std::basic_ostream<char>’ and ‘const genesys::Pixel’)
+minigtest.h:43:29: error: no match for ‘operator<<’ (operand types are ‘std::basic_ostream<char>’ and ‘const genesys::RawPixel’)
+minigtest.h:43:29: error: no match for ‘operator<<’ (operand types are ‘std::basic_ostream<char>’ and ‘const genesys::PixelFormat’)
+.
+Simply suppressing the print of the mismatch is the lowest effort workaround.
+Author: Nathan Pratta Teodosio <nathan.teodosio@canonical.com>
+Bug: 1013034
+Forwarded: No
+
+--- a/testsuite/backend/genesys/minigtest.h
++++ b/testsuite/backend/genesys/minigtest.h
+@@ -40,7 +40,6 @@
+         s_num_failures++;
+         std::cerr << "FAILURE at ";
+         print_location(std::cerr, function, path, line);
+-        std::cerr << " :\n" << t << " != " << u << "\n\n";
+     } else {
+         s_num_successes++;
+         std::cerr << "SUCCESS at ";
diff -Nru sane-backends-1.1.1/debian/patches/series sane-backends-1.1.1/debian/patches/series
--- sane-backends-1.1.1/debian/patches/series	2022-03-27 12:22:54.000000000 -0300
+++ sane-backends-1.1.1/debian/patches/series	2022-09-29 12:19:23.000000000 -0300
@@ -21,3 +21,4 @@
 #0180-gt68xx_fix_use-after-free_two_memleaks.patch
 0185-Change_output_from_sane-find-scanner.patch
 #0190-remove-kernel-driver-for-plustek_pp.patch
+0726-disable-check-equal-stderr.patch