Main: More Clang 13 build fixes (warnings as errors).

git-svn-id: https://www.virtualbox.org/svn/vbox/trunk@99741 cfe28804-0f27-0410-a406-dd0f0b0b656f

3 files changed, 9 insertions, 3 deletions

diff --git a/src/VBox/Main/src-server/darwin/iokit.cpp b/src/VBox/Main/src-server/darwin/iokit.cpp
index ac6974ba70a..9d50fded8c4 100644
--- a/src/VBox/Main/src-server/darwin/iokit.cpp
+++ b/src/VBox/Main/src-server/darwin/iokit.cpp
@@ -940,8 +940,8 @@ static void darwinDetermineUSBDeviceStateWorker(PUSBDEVICE pCur, io_object_t USB
     if (krc != KERN_SUCCESS)
         return;
 
-    bool fUserClientOnly = true;
-    bool fConfigured = false;
+    bool fUserClientOnly = true; RT_NOREF(fUserClientOnly); /* Shut up Clang 13 (-Wunused-but-set-variable). */
+    bool fConfigured = false;    RT_NOREF(fConfigured);
     bool fInUse = false;
     bool fSeizable = true;
     io_object_t Interface;
diff --git a/src/libs/xpcom18a4/xpcom/string/public/nsTDependentSubstring.h b/src/libs/xpcom18a4/xpcom/string/public/nsTDependentSubstring.h
index 00e5f189607..1cc99bcf407 100644
--- a/src/libs/xpcom18a4/xpcom/string/public/nsTDependentSubstring.h
+++ b/src/libs/xpcom18a4/xpcom/string/public/nsTDependentSubstring.h
@@ -79,7 +79,9 @@ class nsTDependentSubstring_CharT : public nsTSubstring_CharT
         : substring_type(NS_CONST_CAST(char_type*, start.get()), end.get() - start.get(), F_NONE) {}
 
       // auto-generated copy-constructor OK (XXX really?? what about base class copy-ctor?)
-
+#if RT_CLANG_PREREQ(13, 0) /* To shut up Clang 13 (-Wdeprecated-copy). */
+      nsTDependentSubstring_CharT(nsTDependentSubstring_CharT const&) = default;
+#endif
     private:
         // we're immutable, you can't assign into a substring
       void operator=( const self_type& ) NS_DELETE;
diff --git a/src/libs/xpcom18a4/xpcom/string/public/nsTPromiseFlatString.h b/src/libs/xpcom18a4/xpcom/string/public/nsTPromiseFlatString.h
index 6899df7c261..8494b82aabd 100644
--- a/src/libs/xpcom18a4/xpcom/string/public/nsTPromiseFlatString.h
+++ b/src/libs/xpcom18a4/xpcom/string/public/nsTPromiseFlatString.h
@@ -132,6 +132,10 @@ class nsTPromiseFlatString_CharT : public nsTString_CharT
           // into ourselves.
           Assign(tuple);
         }
+
+#if RT_CLANG_PREREQ(13, 0) /* To shut up Clang 13 (-Wdeprecated-copy). */
+      nsTPromiseFlatString_CharT(nsTPromiseFlatString_CharT const&) = default;
+#endif
   };
 
 inline