cmake: Define same target than in the hpp-fclTarget.cmake

src/CMakeLists.txt

@@ -187,6 +187,7 @@ add_library(${LIBRARY_NAME}
   ${PROJECT_HEADERS_FULL_PATH}
   ${${LIBRARY_NAME}_SOURCES}
   )
+add_library(hpp-fcl::hpp-fcl ALIAS ${LIBRARY_NAME})
 
 if(UNIX)
   get_relative_rpath(${CMAKE_INSTALL_LIBDIR} ${PROJECT_NAME}_INSTALL_RPATH)