anchor.diff:          --with-threads
   
   RUN \
  -    # Start compiling, testing and installing.
       cd /tmp/build/nginx/nginx-${NGINX_VERSION} && \
  +    # Start compiling and installing.
       make build && \
       make modules && \
       make install
  
positive.code:     tar -xvzf nginx-${NGINX_VERSION}.tar.gz
  
  RUN \
      # Run configuration.
      cd /tmp/build/nginx/nginx-${NGINX_VERSION} && \
      ./configure \
          --with-file-aio \
          --with-http_gunzip_module \
  
negative.code:     # Install tools, required for building.
      apt-get update && \
      apt-get install -y \
          # In general...
          build-essential \
          curl \
  
          # For Nginx
          libssl-dev \
          libpcre3-dev && \
  
      # Prepare for building.
      mkdir -p /tmp/build
  