a52decのリビルドで失敗
gcc -shared bitstream.lo imdct.lo bit_allocate.lo parse.lo downmix.lo -lm -Wl,-soname -Wl,liba52.so.0 -o .libs/liba52.so.0.0.0
/usr/bin/ld: imdct.lo: relocation R_X86_64_32S against `a local symbol' can not be used when making a shared object; recompile with -fPIC
imdct.lo: could not read symbols: Bad value
collect2: ld returned 1 exit status
make[1]: *** [liba52.la] Error 1
