Ubuntu NDK Build Error

i created a coco2d-x 3.2 cpp project in Ubuntu14.04 X64
NDK version is ndk-r9d
gcc version is 4.8.2
when i build an android project.
the console prompt that :
Android NDK: WARNING: APP_PLATFORM android-19 is larger than android:minSdkVersion 9 in ./AndroidManifest.xml
Android NDK: WARNING:/home/administrator/Test/TestGame/proj.android/…/cocos2d/cocos/./Android.mk:cocos2dx_static: LOCAL_LDLIBS is always ignored for static libraries
Android NDK: WARNING:/home/administrator/Test/TestGame/proj.android/…/cocos2d/cocos/platform/android/Android.mk:cocos2dxandroid_static: LOCAL_LDLIBS is always ignored for static libraries
make: Entering directory `/home/administrator/Test/TestGame/proj.android’
[armeabi] Compile++ thumb: cocos2dcpp_shared <= main.cpp
/usr/bin/as:无法识别的选项“-mfloat-abi=soft”
clang++: error: assembler command failed with exit code 1 (use -v to see invocation)
make: *** [obj/local/armeabi/objs-debug/cocos2dcpp_shared/hellocpp/main.o] Error 1