Merge pull request #1373 from sangshuduo/remove-unused-argument-malign-double-for-clang

remove unused argument -malign-double for clang.

CMakeLists.txt

@@ -163,7 +163,7 @@ IF (NOT DEFINED TD_CLUSTER)
     SET(RELEASE_FLAGS "-O0")
     IF (NOT TD_ARM)
       IF (${CMAKE_CXX_COMPILER_ID} MATCHES "Clang")
-        SET(COMMON_FLAGS "-std=gnu99 -Wall -fPIC -malign-double -g -msse4.2 -D_FILE_OFFSET_BITS=64 -D_LARGE_FILE")
+        SET(COMMON_FLAGS "-std=gnu99 -Wall -fPIC -g -msse4.2 -D_FILE_OFFSET_BITS=64 -D_LARGE_FILE")
       ELSE ()
         SET(COMMON_FLAGS "-std=gnu99 -Wall -fPIC -malign-double -g -malign-stringops -msse4.2 -D_FILE_OFFSET_BITS=64 -D_LARGE_FILE")
       ENDIF ()
@@ -207,7 +207,11 @@ IF (NOT DEFINED TD_CLUSTER)
     ADD_DEFINITIONS(-DPTW32_BUILD)
     ADD_DEFINITIONS(-D_MBCS -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE)
   ELSEIF (TD_DARWIN_64)
-    SET(COMMON_FLAGS "-std=gnu99 -Wall -fPIC -malign-double -g -msse4.2 -D_FILE_OFFSET_BITS=64 -D_LARGE_FILE")
+    IF (${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)