anchor.diff:  		make \
   		pkg-config \
   		re2c
  -ENV SECP256K1_COMMIT=fa3301713549d118e57ebe6551d062903ddd6b63
  +ENV SECP256K1_REPO="$BUILD_SECP256K1_REPO"
  +ENV SECP256K1_COMMIT="$BUILD_SECP256K1_COMMIT"
   ENV PHP_INI_DIR /usr/local/etc/php
   ENV PHP_CFLAGS="-fstack-protector-strong -fpic -fpie -O2"
   ENV PHP_CPPFLAGS="$PHP_CFLAGS"
   ENV PHP_LDFLAGS="-Wl,-O1 -Wl,--hash-style=both -pie"
  +ENV SECP256K1_CONFIGURE_FLAGS="--enable-benchmark=no --enable-tests=no --enable-experimental --enable-module-ecdh --enable-module-recovery --enable-module-schnorrsig"
   ENV GPG_KEYS="$BUILD_GPG_KEYS"
   ENV PHP_VERSION="$BUILD_PHP_VERSION"
   ENV PHP_URL="https://secure.php.net/get/php-$PHP_VERSION.tar.xz/from/this/mirror"
  
positive.code: ARG BUILD_CHECK_SIGNATURE=true
  ARG BUILD_CUSTOM_URL=''
  ARG BUILD_REPO_URL=''
  
  ENV PHPIZE_DEPS \
  		autoconf \
  
negative.code: #    && php -d phar.readonly=0 generate-phpt/gtPackage.php \
  #    && cd /
  
  RUN cd / && git clone $SECP256K1_REPO \
      && cd secp256k1 && git checkout $SECP256K1_COMMIT \
      && ./autogen.sh \
      && ./configure $SECP256K1_CONFIGURE_FLAGS \
      && make && make install && ldconfig
  
  ADD scripts/coverage.sh /usr/bin
  