Support building only seleced types

driver/level2/CMakeLists.txt

@@ -197,6 +197,19 @@ foreach (float_type ${FLOAT_TYPES})
   endif ()
 endforeach ()
 
+if (DEFINED BUILD_COMPLEX AND NOT DEFINED BUILD_SINGLE)
+  if (USE_THREAD)
+	  GenerateNamedObjects("gemv_thread.c" "" "gemv_thread_n" false "" "" false "SINGLE")
+	  GenerateNamedObjects("gemv_thread.c" "TRANSA" "gemv_thread_t" false "" "" false "SINGLE")
+  endif ()
+endif ()
+if (DEFINED BUILD_COMPLEX16 AND NOT DEFINED BUILD_DOUBLE)
+  if (USE_THREAD)
+	  GenerateNamedObjects("gemv_thread.c" "" "gemv_thread_n" false "" "" false "DOUBLE")
+	  GenerateNamedObjects("gemv_thread.c" "TRANSA" "gemv_thread_t" false "" "" false "DOUBLE")
+  endif ()
+endif ()
+
 if (USE_THREAD)
   GenerateCombinationObjects("${UL_SMP_SOURCES}" "LOWER" "U" "" 2)
 endif ()