Android ndk编译so,提示 (first use in this function)

在Linux上用Android ndk编译CSipSimple的so,在编译libvpx的时候,老提示

jni/libvpx/android_toolchain/../sources/./vp8/encoder/encodeframe.c: In function 'vp8cx_encode_inter_macroblock':
jni/libvpx/android_toolchain/../sources/./vp8/encoder/encodeframe.c:1192:39: error: 'vp8_fast_quantize_b' undeclared (first use in this function)
jni/libvpx/android_toolchain/../sources/./vp8/encoder/encodeframe.c:1192:39: note: each undeclared identifier is reported only once for each function it appears in
jni/libvpx/android_toolchain/../sources/./vp8/encoder/encodeframe.c:1193:39: error: 'vp8_fast_quantize_b_pair' undeclared (first use in this function)
jni/libvpx/android_toolchain/../sources/./vp8/encoder/encodeframe.c:1205:39: error: 'vp8_regular_quantize_b' undeclared (first use in this function)
jni/libvpx/android_toolchain/../sources/./vp8/encoder/encodeframe.c:1206:39: error: 'vp8_regular_quantize_b_pair' undeclared (first use in this function)
 

这样的错误,看代码已经定义了变量,请问这类问题该如何解决

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