diff --git a/CMakeLists.txt b/CMakeLists.txt
index 40022a539025f4fd05e90fa8a2c81b8160fab51e..8b39719d85f19c2026b007330da7e728f74f0abd 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -157,7 +157,7 @@ IF (NOT DEFINED TD_CLUSTER)
     SET(RELEASE_FLAGS "-O0")
     IF (NOT TD_ARM)
       IF (${CMAKE_CXX_COMPILER_ID} MATCHES "Clang")
-        SET(COMMON_FLAGS "-std=gnu99 -Wall -fPIC -malign-double -g -msse4.2 -D_FILE_OFFSET_BITS=64 -D_LARGE_FILE")
+        SET(COMMON_FLAGS "-std=gnu99 -Wall -fPIC -g -msse4.2 -D_FILE_OFFSET_BITS=64 -D_LARGE_FILE")
       ELSE ()
         SET(COMMON_FLAGS "-std=gnu99 -Wall -fPIC -malign-double -g -malign-stringops -msse4.2 -D_FILE_OFFSET_BITS=64 -D_LARGE_FILE")
       ENDIF ()
@@ -201,7 +201,11 @@ IF (NOT DEFINED TD_CLUSTER)
     ADD_DEFINITIONS(-DPTW32_BUILD)
     ADD_DEFINITIONS(-D_MBCS -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE)
   ELSEIF (TD_DARWIN_64)
-    SET(COMMON_FLAGS "-std=gnu99 -Wall -fPIC -malign-double -g -msse4.2 -D_FILE_OFFSET_BITS=64 -D_LARGE_FILE")
+    IF (${CMAKE_CXX_COMPILER_ID} MATCHES "Clang")
+      SET(COMMON_FLAGS "-std=gnu99 -Wall -fPIC -g -msse4.2 -D_FILE_OFFSET_BITS=64 -D_LARGE_FILE")
+    ELSE ()
+      SET(COMMON_FLAGS "-std=gnu99 -Wall -fPIC -malign-double -g -malign-stringops -msse4.2 -D_FILE_OFFSET_BITS=64 -D_LARGE_FILE")
+    ENDIF ()
     SET(DEBUG_FLAGS "-O0 -DDEBUG")
     SET(RELEASE_FLAGS "-O0")
     ADD_DEFINITIONS(-DDARWIN)