#!/bin/sh
##
##  autogen.sh: auto-generate library build environment tools
##

#   generator tools version sanity check
for spec in \
    "autoconf   --version 4 2.52  2.5*" \
    "shtoolize  -v        3 1.5.4 1.5.*"
do
    set -- $spec
    t="$1"
    o="$2"
    p="$3"
    e="$4"
    a="$5"
    v=`($t $o | head -1 | awk "{ print \\\$$p; }") 2>/dev/null`
    if [ ".$v" = . ]; then
        echo "$0:ERROR: unable to determine version of $t" 1>&2
        exit 1
    fi
    eval "${t}_version=\"$v\""
    case "$v" in
        $e )
            ;;
        $a )
            echo "$0:WARNING: $t version $v still accepted, although expected $e." 1>&2
            ;;
        * )
            echo "$0:ERROR: $t version $e expected, but found $v." 1>&2
            ;;
    esac
done

#   GNU Autoconf generation
echo "GNU Autoconf $autoconf_version -> configure, config.h.in"
autoconf
#autoheader

#   GNU Shtool generation
echo "GNU Shtool $shtoolize_version -> shtool"
shtoolize -q all