anchor.diff:          php${PHP_VERSION_MAJOR}-zlib \
           wget \
           yaml \
  -    && adduser -D  -g '' -s /sbin/nologin -u 1000 docker \
  +    ## xdebug
  +    && apk --no-cache --update add \
  +        --repository http://dl-cdn.alpinelinux.org/alpine/edge/community/ \
  +        php${PHP_VERSION_MAJOR}-xdebug \
       ## composer
       && wget -q -O - https://getcomposer.org/installer \
            | php --  --install-dir=/usr/local/bin --filename=composer \
  -    ## xdebug
  +    ## build pecl package
       && apk --no-cache add --virtual .builddeps \
           autoconf \
           automake \
  
positive.code: 
  ENV PHP_VERSION           ${VERSION}
  ENV PHP_VERSION_MAJOR     5
  ENV PECL_XDEBUG_VERSION   2.4.1
  ENV PECL_YAML_VERSION     1.3.0
  
  RUN set -x \
  
negative.code:     && git clone https://github.com/jokkedk/webgrind \
      && cd webgrind \
      && rm -rf .git \
      && apk del .builddeps \
      ## user
      && adduser -D  -g '' -s /sbin/nologin -u 1000 docker \
      
  COPY bin/*  /usr/local/bin/
  COPY etc/php-fpm.conf  /etc/php${PHP_VERSION_MAJOR}/
  
  