/home/roland/android/android-ndk-r9b/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld: jni/..//submodules/externals/build/x264/arm/libx264.a(encoder.o): in function x264_encoder_open_136:encoder.c(.text+0x7318): error: undefined reference to 'log2f'