Index: gazebo-11.10.2/cmake/SearchForStuff.cmake
===================================================================
--- gazebo-11.10.2.orig/cmake/SearchForStuff.cmake
+++ gazebo-11.10.2/cmake/SearchForStuff.cmake
@@ -847,10 +847,10 @@ find_path(QWT_INCLUDE_DIR NAMES qwt.h PA
   /usr/local/lib/qwt.framework/Headers
   ${QWT_WIN_INCLUDE_DIR}
 
-  PATH_SUFFIXES qwt qwt5
+  PATH_SUFFIXES qwt qwt5 qwt6
 )
 
-find_library(QWT_LIBRARY NAMES qwt-qt5 qwt PATHS
+find_library(QWT_LIBRARY NAMES qwt6-qt5 qwt-qt5 qwt PATHS
   /usr/local/lib
   /usr/local/lib/qwt.framework
   ${QWT_WIN_LIBRARY_DIR}