$NetBSD$

Clang is compiled without rtti so when compiling with gcc turn of rtti
this fixes problems with undefined reference to things such as
"typeinfo for clang::ASTConsumer" 

--- src/linguist/lupdate/CMakeLists.txt.orig	2021-02-25 02:26:59.000000000 +0000
+++ src/linguist/lupdate/CMakeLists.txt
@@ -99,6 +99,8 @@ qt_internal_extend_target(${target_name} CONDITION QT_
 # special case begin
 if(QT_FEATURE_clangcpp)
     set_property(SOURCE clangtoolastreader.cpp PROPERTY SKIP_AUTOMOC ON)
+    set_source_files_properties(cpp_clang.cpp lupdatepreprocessoraction.cpp
+                                PROPERTIES COMPILE_OPTIONS "-fno-rtti")
 endif()
 # special case end
 
