[MPlayer-dev-eng] undefined reference to 'pp_help' while --enable-shared-pp configuration

[tibi]

I would like to build with --enable-gui --enable-shared-pp configuration 
options, but I got

mplayer.o(.data+0x2298): undefined reference to `pp_help'
libmpcodecs/libmpcodecs.a(vf_pp.o): In function `open':
vf_pp.o(.text+0x16b): undefined reference to `pp_get_mode_by_name_and_quality'
libmpcodecs/libmpcodecs.a(vf_pp.o): In function `config':
vf_pp.o(.text+0x2c3): undefined reference to `pp_get_context'
vf_pp.o(.text+0x304): undefined reference to `pp_free_context'
libmpcodecs/libmpcodecs.a(vf_pp.o): In function `uninit':
vf_pp.o(.text+0x36e): undefined reference to `pp_free_mode'
libmpcodecs/libmpcodecs.a(vf_pp.o): In function `put_image':
vf_pp.o(.text+0x592): undefined reference to `pp_postprocess'
libmpcodecs/libmpcodecs.a(vf_pp.o): In function `uninit':
vf_pp.o(.text+0x366): undefined reference to `pp_free_context'
collect2: ld returned 1 exit status
make: *** [mplayer] Error 1