SHELL := /usr/bin/env bash -euo pipefail

stdlib:
# (I don't know how to add comments inside a multiline rule, so all comments go first)
# Use `+` to use the Make jobserver with `leanmake` for parallelized builds
# In the case of stage 0.5, we simply hardlink .olean files and libInit.a from stage 0 (but not libleancpp.a,
# which is different from stage 0).
# Otherwise, we build the library with `leanmake`. We rebuild it (`MORE_DEPS`) whenever the compiler has changed.
	+if [ ${STAGE} == 0.5 ]; then\
    mkdir -p "${LIB}/lean";\
    cp -rf $$(find "${PREV_STAGE}/lib/lean" -mindepth 1 -maxdepth 1 -not -name libleancpp.a) "${LIB}/lean";\
  else\
    "${LEAN_BIN}/leanmake" lib\
      PKG=Init\
      "OUT=${LIB}"\
      "LIB_OUT=${LIB}/lean"\
      "OLEAN_OUT=${LIB}/lean"\
      "LEANC_OPTS=${LEANC_OPTS}"\
      "MORE_DEPS=${LEAN_BIN}/lean${CMAKE_EXECUTABLE_SUFFIX}";\
    "${LEAN_BIN}/leanmake" lib\
      PKG=Std\
      "OUT=${LIB}"\
      "LIB_OUT=${LIB}/lean"\
      "OLEAN_OUT=${LIB}/lean"\
      "LEANC_OPTS=${LEANC_OPTS}"\
      "MORE_DEPS=${LEAN_BIN}/lean${CMAKE_EXECUTABLE_SUFFIX}";\
    "${LEAN_BIN}/leanmake" lib\
      PKG=Lean\
      "OUT=${LIB}"\
      "LIB_OUT=${LIB}/lean"\
      "OLEAN_OUT=${LIB}/lean"\
      "LEANC_OPTS=${LEANC_OPTS}"\
      "MORE_DEPS=${LEAN_BIN}/lean${CMAKE_EXECUTABLE_SUFFIX}";\
  fi