fix compile error when WITH_PSLIB=ON (#21702)

* fix compile error when WITH_PSLIB=ON
* test=develop

cmake/generic.cmake

@@ -93,7 +93,11 @@ include_directories(${CMAKE_CURRENT_BINARY_DIR})
 if(NOT APPLE)
   find_package(Threads REQUIRED)
   link_libraries(${CMAKE_THREAD_LIBS_INIT})
-  set(CMAKE_CXX_LINK_EXECUTABLE "${CMAKE_CXX_LINK_EXECUTABLE} -pthread -ldl -lrt")
+  if(WITH_PSLIB)
+    set(CMAKE_CXX_LINK_EXECUTABLE "${CMAKE_CXX_LINK_EXECUTABLE} -pthread -ldl -lrt -lz -lssl")
+  else()
+    set(CMAKE_CXX_LINK_EXECUTABLE "${CMAKE_CXX_LINK_EXECUTABLE} -pthread -ldl -lrt")
+  endif()
 endif(NOT APPLE)
 
 set_property(GLOBAL PROPERTY FLUID_MODULES "")