diff --git a/config/lyxinclude.m4 b/config/lyxinclude.m4
index 164b2f7a89..59421ae225 100644
--- a/config/lyxinclude.m4
+++ b/config/lyxinclude.m4
@@ -410,9 +410,11 @@ if test x$GXX = xyes; then
   fi
   dnl Warnings are for preprocessor too
   if test x$enable_warnings = xyes ; then
+      AM_CPPFLAGS="$AM_CPPFLAGS -Wall -Wextra"
       case $gxx_version in
-	  9.*) AM_CPPFLAGS="$AM_CPPFLAGS -Wall -Wextra -Wno-deprecated-copy";;
-	  *) AM_CPPFLAGS="$AM_CPPFLAGS -Wall -Wextra";;
+	  9.*|10.*|clang-10*)
+	      AM_CXXFLAGS="$AM_CXXFLAGS -Wno-deprecated-copy";;
+	  *);;
       esac
     fi
   case $gxx_version in
diff --git a/status.23x b/status.23x
index 098a40013e..2f045e82dd 100644
--- a/status.23x
+++ b/status.23x
@@ -144,3 +144,4 @@ What's new
 
 - Download dictionary and thesaurus files, on Windows, from our SVN repo (bug 11192).
 
+- Avoid many warnings with g++ 10 and clang++ 10.