diff -Nru qtdeclarative-opensource-src-5.15.4+dfsg/debian/changelog qtdeclarative-opensource-src-5.15.4+dfsg/debian/changelog
--- qtdeclarative-opensource-src-5.15.4+dfsg/debian/changelog	2022-06-13 18:36:23.000000000 +0000
+++ qtdeclarative-opensource-src-5.15.4+dfsg/debian/changelog	2022-06-23 04:00:15.000000000 +0000
@@ -1,3 +1,14 @@
+qtdeclarative-opensource-src (5.15.4+dfsg-3+rpi1) bookworm-staging; urgency=medium
+
+  [changes brought forward from 5.14.2+dfsg-2+rpi1 by Peter Michael Green <plugwash@raspbian.org> at Sat, 04 Jul 2020 19:53:58 +0000]
+  * Update symbols file for raspbian.
+
+  [changes introduced in 5.14.2+dfsg-3+rpi1 by Peter Michael Green]
+  * Mark a gcc 10 only symbol as optional.
+  * Disable testsuite.
+
+ -- Raspbian forward porter <root@raspbian.org>  Thu, 23 Jun 2022 04:00:15 +0000
+
 qtdeclarative-opensource-src (5.15.4+dfsg-3) unstable; urgency=medium
 
   * Upload to unstable.
diff -Nru qtdeclarative-opensource-src-5.15.4+dfsg/debian/libqt5qml5.symbols qtdeclarative-opensource-src-5.15.4+dfsg/debian/libqt5qml5.symbols
--- qtdeclarative-opensource-src-5.15.4+dfsg/debian/libqt5qml5.symbols	2022-06-13 18:36:23.000000000 +0000
+++ qtdeclarative-opensource-src-5.15.4+dfsg/debian/libqt5qml5.symbols	2022-06-23 04:00:15.000000000 +0000
@@ -984,9 +984,9 @@
  _ZTIN6QQmlJS3AST9UiProgramE@Qt_5 5.3.0
  (arch=armel riscv64)_ZTIN9__gnu_cxx7__mutexE@Qt_5 5.14.1
  (arch=armel riscv64)_ZTISt11_Mutex_baseILN9__gnu_cxx12_Lock_policyE1EE@Qt_5 5.14.1
- (arch=!armel !riscv64)_ZTISt11_Mutex_baseILN9__gnu_cxx12_Lock_policyE2EE@Qt_5 5.14.1
+ (optional=notarmelandprobabllynotraspbian)_ZTISt11_Mutex_baseILN9__gnu_cxx12_Lock_policyE2EE@Qt_5 5.14.1
  (arch=armel riscv64)_ZTISt16_Sp_counted_baseILN9__gnu_cxx12_Lock_policyE1EE@Qt_5 5.14.1
- (arch=!armel !riscv64)_ZTISt16_Sp_counted_baseILN9__gnu_cxx12_Lock_policyE2EE@Qt_5 5.14.1
+ (optional=notarmelandprobabllynotraspbian)_ZTISt16_Sp_counted_baseILN9__gnu_cxx12_Lock_policyE2EE@Qt_5 5.14.1
  (arch=armel armhf)_ZTISt19_Sp_make_shared_tag@Qt_5 5.14.1
  _ZTS10QQmlEngine@Qt_5 5.0.2
  _ZTS11QQmlContext@Qt_5 5.0.2
@@ -1133,9 +1133,9 @@
  _ZTSN6QQmlJS3AST9UiProgramE@Qt_5 5.3.0
  (arch=armel riscv64)_ZTSN9__gnu_cxx7__mutexE@Qt_5 5.14.1
  (arch=armel riscv64)_ZTSSt11_Mutex_baseILN9__gnu_cxx12_Lock_policyE1EE@Qt_5 5.14.1
- (arch=!armel !riscv64)_ZTSSt11_Mutex_baseILN9__gnu_cxx12_Lock_policyE2EE@Qt_5 5.14.1
+ (optional=notarmelandprobabllynotraspbian)_ZTSSt11_Mutex_baseILN9__gnu_cxx12_Lock_policyE2EE@Qt_5 5.14.1
  (arch=armel riscv64)_ZTSSt16_Sp_counted_baseILN9__gnu_cxx12_Lock_policyE1EE@Qt_5 5.14.1
- (arch=!armel !riscv64)_ZTSSt16_Sp_counted_baseILN9__gnu_cxx12_Lock_policyE2EE@Qt_5 5.14.1
+ (optional=notarmelandprobabllynotraspbian)_ZTSSt16_Sp_counted_baseILN9__gnu_cxx12_Lock_policyE2EE@Qt_5 5.14.1
  _ZTSSt19_Sp_make_shared_tag@Qt_5 5.14.1
  _ZTV10QQmlEngine@Qt_5 5.0.2
  _ZTV11QQmlContext@Qt_5 5.0.2
diff -Nru qtdeclarative-opensource-src-5.15.4+dfsg/debian/rules qtdeclarative-opensource-src-5.15.4+dfsg/debian/rules
--- qtdeclarative-opensource-src-5.15.4+dfsg/debian/rules	2022-06-13 18:36:23.000000000 +0000
+++ qtdeclarative-opensource-src-5.15.4+dfsg/debian/rules	2022-06-23 04:00:15.000000000 +0000
@@ -62,7 +62,7 @@
 	dh_link -pqml usr/lib/qt5/bin/qml usr/lib/$(DEB_HOST_MULTIARCH)/qt5/bin/qml
 
 override_dh_auto_test-arch:
-ifeq (,$(filter nocheck,$(DEB_BUILD_OPTIONS)))
+ifeq (testsuitdisabled,$(filter nocheck,$(DEB_BUILD_OPTIONS)))
 	$(MAKE) install INSTALL_ROOT=$(CURDIR)/test_root
 	mkdir -p $(CURDIR)/.local/share/QtProject/tst_qqmlengine
 	# - hppa: QML engine is broken, see bug #973659