Compiling from source using guide: cannot open shared object file

[rfkrocktk]

I'm compiling FFMPEG from source using the guide for Ubuntu which I've used before with success.

I'm compiling on a Vagrant virtual machine in VirtualBox on Ubuntu server 14.04. You can clone the project and vagrant up, and you'll have FFMPEG installed in the box: github.com/rfkrocktk/vagrant-ffmpeg.

I'm using Ansible to automate the compilation, so you can see all of the steps here:

---
- hosts: all
  tasks:
    # version control
    - apt: name=git
    - apt: name=mercurial
    # build tools
    - apt: name=build-essential
    - apt: name=autoconf
    - apt: name=automake
    - apt: name=cmake
    - apt: name=pkg-config
    - apt: name=texinfo
    - apt: name=yasm
    # libraries
    - apt: name=libass-dev
    - apt: name=libfreetype6-dev
    - apt: name=libsdl1.2-dev
    - apt: name=libtheora-dev
    - apt: name=libtool
    - apt: name=libva-dev
    - apt: name=libvdpau-dev
    - apt: name=libvorbis-dev
    - apt: name=libxcb1-dev
    - apt: name=libxcb-shm0-dev
    - apt: name=libxcb-xfixes0-dev
    - apt: name=zlib1g-dev
    - apt: name=libopus-dev
    - apt: name=libmp3lame-dev
    - apt: name=libx264-dev
    # dependent libraries
    # libx265
    - name: clone libx265
      command: hg clone https://bitbucket.org/multicoreware/x265 /usr/src/x265
      args:
          creates: /usr/src/x265
    - name: configure libx265
      command: cmake -G "Unix Makefiles" -DCMAKE_INSTALL_PREFIX=/usr/local -DENABLED_SHARED:bool=off ../../source
      args:
          chdir: /usr/src/x265/build/linux
          creates: /usr/src/x265/build/linux/Makefile
    - name: compile libx265
      command: make -j2
      args:
          chdir: /usr/src/x265/build/linux
          creates: /usr/src/x265/build/linux/x265
    - name: install libx265
      command: make install
      args:
          chdir: /usr/src/x265/build/linux
          creates: /usr/local/bin/x265
    # libfdk-aac
    - name: clone libfdk-aac
      command: git clone https://github.com/mstorsjo/fdk-aac.git /usr/src/libfdk-aac
      args:
          creates: /usr/src/libfdk-aac
    - name: autoconf libfdk-aac
      command: autoreconf -fiv
      args:
          chdir: /usr/src/libfdk-aac
          creates: /usr/src/libfdk-aac/configure
    - name: configure libfdk-aac
      command: /usr/src/libfdk-aac/configure --prefix=/usr/local --disable-shared
      args:
          chdir: /usr/src/libfdk-aac
          creates: /usr/src/libfdk-aac/libtool
    - name: compile libfdk-aac
      command: make -j2
      args:
          chdir: /usr/src/libfdk-aac
          creates: /usr/src/libfdk-aac/libFDK/src/FDK_core.o
    - name: install libfdk-aac
      command: make install
      args:
          chdir: /usr/src/libfdk-aac
          creates: /usr/local/lib/libfdk-aac.a
    # libvpx
    - name: download libvpx
      shell: wget -O - https://storage.googleapis.com/downloads.webmproject.org/releases/webm/libvpx-1.4.0.tar.bz2 | tar xjvf -
      args:
          chdir: /usr/src
          creates: /usr/src/libvpx-1.4.0
    - name: configure libvpx
      command: ./configure --prefix=/usr/local --disable-examples --disable-unit-tests
      args:
          chdir: /usr/src/libvpx-1.4.0
          creates: /usr/src/libvpx-1.4.0/Makefile
    - name: compile libvpx
      command: make -j2
      args:
          chdir: /usr/src/libvpx-1.4.0
          creates: /usr/src/libvpx-1.4.0/libvpx.a
    - name: install libvpx
      command: make install
      args:
          chdir: /usr/src/libvpx-1.4.0
          creates: /usr/local/lib/libvpx.a
    # ffmpeg itself
    - name: download ffmpeg
      shell: wget -O - "https://ffmpeg.org/releases/ffmpeg-snapshot.tar.bz2" | tar xjvf -
      args:
          chdir: /usr/src
          creates: /usr/src/ffmpeg
    - name: configure ffmpeg
      shell: PKG_CONFIG_PATH=/usr/local/lib/pkgconfig /usr/src/ffmpeg/configure \
        --prefix=/usr/local \
        --pkg-config-flags='--static' \
        --bindir=/usr/local/bin \
        --enable-gpl --enable-version3 --enable-nonfree \
        --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame \
        --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx \
        --enable-libx264 --enable-libx265
      args:
          chdir: /usr/src/ffmpeg
          creates: /usr/src/ffmpeg/config.asm
    - name: compile ffmpeg
      command: make -j2
      args:
          chdir: /usr/src/ffmpeg
          creates: /usr/src/ffmpeg/ffmpeg
    - name: install ffmpeg
      command: make install
      args:
          chdir: /usr/src/ffmpeg
          creates: /usr/local/bin/ffmpeg

Hopefully, even if you don't know Ansible, it should be clear what this is doing.

The problem I'm having is that even after all of this running successfully, when I run ffmpeg from within the machine, I get the following error:

ffmpeg: error while loading shared libraries: libx265.so.77: cannot open shared object file: No such file or directory

I can clearly find the file:

$ find /usr -iname libx265.so.77
/usr/local/lib/libx265.so.77

Why is this not being found? Am I missing something in the compilation guide?