configure

#! /bin/sh

COQC=$(which coqc)
if [ $"x$COQC" = x ]
then
    echo "coqc not found"
    exit 1
fi


COQ_VERSION=$("$COQC" -v | head -n 1 | sed 's/^[^0-9]*\([0-9\.]*\) .*$/\1/')
echo Found Coq $COQ_VERSION
COQ_MAJOR=$(echo "$COQ_VERSION" | sed 's/\..*$//')
COQ_MINOR=$(echo "$COQ_VERSION" | sed 's/[^.]*\.\([^\.]*\).*$/\1/')

if [ $COQ_MAJOR -ge 8 ] 
then
    if [ $COQ_MAJOR -gt 8 -o $COQ_MINOR -gt 13 ]
    then
        echo '!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!'
        echo '!!                                                                             !!'
        echo '!!  Coq 8.14 introduced a regression: https://github.com/coq/coq/issues/15067  !!'
        echo '!!  Until that is fixed, the build will fail. Using Coq 8.13.2 is recommended. !!'
        echo '!!                                                                             !!'
        echo '!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!'
    fi
fi


GHC=$(which ghc)
if [ x$(which "$GHC") = x ]
then
    echo "ghc not found"
    exit 1
fi

ALEX=$(which alex)
if [ x$(which "$ALEX") = x ]
then
    echo "alex not found"
    exit 1
fi

HAPPY=$(which happy)
if [ x$(which "$HAPPY") = x ]
then
    echo "happy not found"
    exit 1
fi

# echo "coqc:  $COQC"
# echo "ghc:   $GHC"
# echo "alex:  $ALEX"
# echo "happy: $HAPPY"

coq_makefile -f _CoqProject -o Makefile