[FFmpeg-user] I am sure something is wrong with configure

[SrAp -]

Hello, I am trying to compile latest ffmpeg and configure it like shown ./configure --enable-version3 --enable-libopencore-amrnb \  --enable-libopencore-amrwb --enable-libvpx --enable-libfaac \  --enable-libmp3lame --enable-libtheora --enable-libvorbis \  --enable-libx264 --enable-libxvid --enable-gpl --enable-postproc \  --enable-nonfree  --enable-fontconfig  --enable-libass 
I got this error root at server1 [~/ffmpeg/ffmpeg]# ./configure --enable-version3 --enable-libopencore-amrnb  --enable-libopencore-amrwb --enable-libvpx --enable-libfaac  --enable-libmp3lame --enable-libtheora --enable-libvorbis  --enable-libx264 --enable-libxvid --enable-gpl --enable-postproc  --enable-nonfree  --enable-fontconfig  --enable-libass ERROR: libass not found 
=============xxxx============ 
I install libass and when I run whereis libass ----- root at server1 [~/ffmpeg/ffmpeg]# whereis libass libass: /usr/lib/libass.so /usr/local/lib/libass.so /usr/local/lib/libass.a /usr/local/lib/libass.la -----