diff --git a/depends/protobuf/CMakeLists.txt b/depends/protobuf/CMakeLists.txt
index 206cfc1a9..ce35d25f1 100644
--- a/depends/protobuf/CMakeLists.txt
+++ b/depends/protobuf/CMakeLists.txt
@@ -5,53 +5,13 @@ IF(CMAKE_COMPILER_IS_GNUCC)
     SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x")
 ENDIF()
 
-SET(HAVE_HASH_MAP 0)
+SET(HASH_MAP_H <unordered_map>)
+SET(HASH_SET_H <unordered_map>)
+SET(HASH_NAMESPACE std)
 SET(HASH_MAP_CLASS unordered_map)
-
-#Check for all of the possible combinations of unordered_map and hash_map
-
-FOREACH(header tr1/unordered_map unordered_map)
-    FOREACH(namespace std::tr1 std )
-        IF(HAVE_HASH_MAP EQUAL 0 AND NOT STL_HASH_OLD_GCC)
-            CONFIGURE_FILE("${CMAKE_CURRENT_SOURCE_DIR}/testHashMap.cpp.in" "${CMAKE_CURRENT_BINARY_DIR}/testHashMap.cpp")
-            IF(CMAKE_CROSSCOMPILING)
-                TRY_COMPILE(HASH_MAP_COMPILE_RESULT ${PROJECT_BINARY_DIR}/CMakeTmp "${CMAKE_CURRENT_BINARY_DIR}/testHashMap.cpp")
-                SET(HASH_MAP_RUN_RESULT ${HASH_MAP_COMPILE_RESULT})
-            ELSE()
-                TRY_RUN(HASH_MAP_RUN_RESULT HASH_MAP_COMPILE_RESULT ${PROJECT_BINARY_DIR}/CMakeTmp "${CMAKE_CURRENT_BINARY_DIR}/testHashMap.cpp")
-            ENDIF()
-            IF (HASH_MAP_COMPILE_RESULT AND HASH_MAP_RUN_RESULT EQUAL 1)
-                SET(HASH_MAP_H <${header}>)
-                STRING(REPLACE "map" "set" HASH_SET_H ${HASH_MAP_H})
-                SET(HASH_NAMESPACE ${namespace})
-                SET(HASH_MAP_CLASS unordered_map)
-                SET(HASH_SET_CLASS unordered_set)
-                SET(HAVE_HASH_MAP 1)
-                SET(HAVE_HASH_SET 1)
-            ENDIF()
-        ENDIF()
-    ENDFOREACH(namespace)
-ENDFOREACH(header)
-IF (HAVE_HASH_MAP EQUAL 0)
-    SET(HASH_MAP_CLASS hash_map)
-    FOREACH(header ext/hash_map hash_map)
-        FOREACH(namespace __gnu_cxx "" std stdext)
-            IF (HAVE_HASH_MAP EQUAL 0)
-                CONFIGURE_FILE("${CMAKE_CURRENT_SOURCE_DIR}/testHashMap.cpp.in" "${CMAKE_CURRENT_BINARY_DIR}/testHashMap.cpp")
-                TRY_COMPILE(HASH_MAP_COMPILE_RESULT ${PROJECT_BINARY_DIR}/CMakeTmp "${CMAKE_CURRENT_BINARY_DIR}/testHashMap.cpp")
-                IF (HASH_MAP_COMPILE_RESULT)
-                    SET(HASH_MAP_H <${header}>)
-                    STRING(REPLACE "map" "set" HASH_SET_H ${HASH_MAP_H})
-                    SET(HASH_NAMESPACE ${namespace})
-                    SET(HASH_MAP_CLASS hash_map)
-                    SET(HASH_SET_CLASS hash_set)
-                    SET(HAVE_HASH_MAP 1)
-                    SET(HAVE_HASH_SET 1)
-                ENDIF()
-            ENDIF()
-        ENDFOREACH()
-    ENDFOREACH()
-ENDIF()
+SET(HASH_SET_CLASS unordered_set)
+SET(HAVE_HASH_MAP 1)
+SET(HAVE_HASH_SET 1)
 
 IF (HAVE_HASH_MAP EQUAL 0)
     MESSAGE(SEND_ERROR "Could not find a working hash map implementation. Please install GCC >= 4.4, and all necessary 32-bit C++ development libraries.")