File qlcplus-qt5-git-gcc9.patch of Package qlcplus-qt5-git
diff -up qlcplus/variables.pri.orig qlcplus/variables.pri
--- qlcplus/variables.pri.orig 2022-04-05 17:51:44.462814939 +0200
+++ qlcplus/variables.pri 2022-04-06 11:08:33.641840387 +0200
@@ -16,7 +16,7 @@ qmlui: APPVERSION = 5.0.0 Beta 3
#############################################################################
# Treat all compiler warnings as errors
-QMAKE_CXXFLAGS += -Werror
+QMAKE_CXXFLAGS += -Werror -Wno-deprecated-copy
unix:QMAKE_CFLAGS += -Werror
CONFIG += warn_on