anchor.diff:          pkgconf \
           re2c \
           xz \
  -        zlib-dev
  +        zlib-dev \
  +        upx@community
   
   RUN mkdir -p $PHP_INI_DIR/conf.d \
       && mkdir -p /usr/src/php \
  
positive.code:     && make -j "$(getconf _NPROCESSORS_ONLN)" \
      && make install \
      && { find /usr/local/bin /usr/local/sbin -type f -perm +0111 -exec strip --strip-all '{}' + || true; } \
      && make clean
  
  
  # Clean slate
  
negative.code: RUN set -euxo pipefail
  
  # Requirements
  RUN echo '@community http://dl-cdn.alpinelinux.org/alpine/edge/community' >> /etc/apk/repositories \
      && apk --update add --no-cache \
          autoconf \
          curl-dev \
          file \
  