lib/libavcodec.a(vc1dsp_init_neon.o): In function `ff_vc1dsp_init_neon':
vc1dsp_init_neon.c:(.text.unlikely+0x2b0): undefined reference to `ff_put_vc1_chroma_mc8_neon'
vc1dsp_init_neon.c:(.text.unlikely+0x2b4): undefined reference to `ff_avg_vc1_chroma_mc8_neon'
vc1dsp_init_neon.c:(.text.unlikely+0x2b8): undefined reference to `ff_put_vc1_chroma_mc4_neon'
vc1dsp_init_neon.c:(.text.unlikely+0x2bc): undefined reference to `ff_avg_vc1_chroma_mc4_neon'
collect2: error: ld returned 1 exit status