+case ",$enable_languages,:$ENABLE_BUILD_WITH_CXX:$enable_bootstrap" in
+ *,c++,*:yes:yes) ;;
+ *:yes:yes)
+ as_fn_error "bootstrapping with --enable-build-with-cxx requires c++ in --enable-languages" "$LINENO" 5
+ ;;
+esac
+
+case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
+ yes:yes:*\ gold\ *:*,c++,*) ;;
+ yes:yes:*\ gold\ *:*)
+ as_fn_error "in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages" "$LINENO" 5
+ ;;
+esac
+