1

root@new ~ #  find . -name "x265.pc"
./ffmpeg_sources/x265/build/linux/x265.pc
./ffmpeg_build/lib/pkgconfig/x265.pc
./ffmpeg_build/lib/x265.pc
./ffmpeg_build/lib/lib/pkgconfig/x265.pc
./ffmpeg_build/lib/lib/x265.pc
root@new ~ # echo $PKG_CONFIG_PATH
/root/ffmpeg_build/lib/pkgconfig
root@new ~ # ls /root/ffmpeg_build/lib/pkgconfig
aom.pc  fdk-aac.pc  opus.pc  x264.pc  x265.pc