diff -rupN --no-dereference gmsh-4.5.5-source/CMakeLists.txt gmsh-4.5.5-source-new/CMakeLists.txt
--- gmsh-4.5.5-source/CMakeLists.txt	2020-03-21 12:29:14.449143063 +0100
+++ gmsh-4.5.5-source-new/CMakeLists.txt	2020-03-21 12:29:14.575143165 +0100
@@ -1874,7 +1874,7 @@ endif()
 if(ENABLE_BUILD_LIB OR ENABLE_BUILD_SHARED OR ENABLE_BUILD_DYNAMIC)
   install(FILES ${GMSH_API} DESTINATION ${GMSH_INC})
   install(FILES ${GMSH_PY} DESTINATION ${PYTHON3_SITE_PACKAGES})
-  install(FILES ${GMSH_JL} DESTINATION ${GMSH_LIB})
+  install(FILES ${GMSH_JL} DESTINATION share/gmsh)
   if(ENABLE_PRIVATE_API)
     install(FILES ${GMSH_PRIVATE_API} DESTINATION ${GMSH_INC}/gmsh)
   endif()