### Debian native
true \
  && PKGS_TO_ADD="curl git make gcc ca-certificates libc6-dev cmake autoconf automake libtool m4" \
  && SUDO=sudo \
  && PKGINIT="$SUDO apt update" \
  && PKGADD="$SUDO apt install -y --no-install-recommends" \
  && PKGCLEAN="$SUDO apt clean" \
  && HOST= \
  && true


### Alpine mingw cross
true \
  && PKGS_TO_ADD="git make mingw-w64-gcc curl tar cmake autoconf automake libtool m4" \
  && SUDO="/home/$USER/.local/bin/sudo" \
  && PKGINIT=true \
  && PKGADD="$SUDO apk add" \
  && PKGCLEAN="$SUDO apk clean" \
  && HOST=x86_64-w64-mingw32 \
  && true


## Generic
true \
  && PCRE_VERSION="8.45" \
  && CACHE_DIR="/var/tmp" \
  && true


## Make
true \
  && if test -n "$(ls -A)"; then true \
     && printf '\n  It is recommended to run this script in an empty dir.\n\n' \
     && false \
     ;fi \
  && PCRE_URL="https://sourceforge.net/projects/pcre/files/pcre/${PCRE_VERSION:?}/pcre-${PCRE_VERSION:?}.tar.gz/download" \
  && PCRE_SRCTGZ="${CACHE_DIR:?}/pcre-${PCRE_VERSION:?}.tgz" \
  && PCRE_BINTGZ="${PCRE_SRCTGZ%.*}-bin.tgz" \
  && if test -n "$HOST"; then HOST_="${HOST:?}-" ;fi \
  && ${PKGINIT:?} && ${PKGADD:?} $PKGS_TO_ADD \
  && printf '\n  Download Dependency Sources\n\n' \
  && if test ! -e "${PCRE_SRCTGZ:?}"; then true \
     && echo "Download ${PCRE_URL:?}" \
     && curl -sSLo "${PCRE_SRCTGZ:?}" "${PCRE_URL:?}" \
     ;fi \
  && if test ! -e "${PCRE_BINTGZ:?}"; then (true \
     && printf '\n  Build curl\n\n' \
     && tar xf "${PCRE_SRCTGZ:?}" \
     && cd "pcre-${PCRE_VERSION:?}" \
     && ./configure --prefix="$PWD/build/usr_local" --host=$HOST --disable-cpp --enable-utf \
     && make clean && make -j$(nproc) && make install \
     && (cd build/usr_local \
        && rm -rf lib/libpcre.la lib/pkgconfig lib/libpcreposix.la bin/pcre-config \
        && tar --owner=0 --group=0 -czf "${PCRE_BINTGZ:?}" * \
        && md5sum -b "${PCRE_BINTGZ:?}" > "${PCRE_BINTGZ:?}.md5" \
        ) \
     && cd .. && rm -rf "pcre-${PCRE_VERSION:?}" \
     );fi \
  && printf '\n  DONE\n\n'


## Install
true \
  && $SUDO tar -C "${INSTALL_ROOT:?}" -xzf "${PCRE_BINTGZ:?}" \
  && true