anchor.diff:   && wget -qO- https://nodejs.org/dist/v$NODE_VER/node-v$NODE_VER.tar.gz | tar zxf - \
    && cd node-v$NODE_VER \
    && ./configure --prefix=/usr \
  - && make -j$NB_CORES && make install \
  + && make -j$NB_CORES && make install && make clean \
    && paxctl -cm /usr/bin/node \
    && npm install -g npm@$NPM_VER \
  - && find /usr/lib/node_modules/npm -name test -o -name .bin -type d \
  - | xargs rm -rf \
  + && find /usr/lib/node_modules/npm -name test -o -name .bin -type d | xargs rm -rf \
  + && strip -s /usr/bin/node \
    && apk del \
       git \
       make \
  
positive.code:     linux-headers \
      paxctl \
      grep \
      binutils-gold \
      ca-certificates \
   && rm -rf \
  
negative.code:     paxctl \
      libgcc \
      libstdc++ \
      binutils \
      binutils-gold \
      ca-certificates \
   && NB_CORES=`getconf _NPROCESSORS_CONF` \
  