#!/bin/bash

# We change dir since the later utilities assume to work in the project dir
cd $(0%*/*)

# make sure autoconf is up-to-date
setglobal ac_ver = $[autoconf --version | head -n 1 | awk '{print $NF}]
setglobal ac_maj = $[echo $ac_ver|sed 's/\..*//]
setglobal ac_min = $[echo $ac_ver|sed 's/.*\.//]
if [[ $ac_maj -lt 2 ]] {
    echo Min autoconf version is 2.57
    exit 1
} elif [[ $ac_maj -eq 2 && $ac_min -lt 57 ]] {
    echo Min autoconf version is 2.57
    exit 1
}

# make sure automake is up-to-date
setglobal am_ver = $[automake --version | head -n 1 | awk '{print $NF}]
setglobal am_maj = $[echo $am_ver|sed 's/\..*//]
setglobal am_min = $[echo $am_ver|sed 's/[^\.]*\.\([^\.]*\)\.*.*/\1/]
setglobal am_sub = $[echo $am_ver|sed 's/[^\.]*\.[^\.]*\.*//]
if [[ $am_maj -lt 1 ]] {
    echo Min automake version is 1.6.3
    exit 1
} elif [[ $am_maj -eq 1 && $am_min -lt 6 ]] {
    echo "automake version is too old:$am_maj.$am_min.$am_sub < required 1.6.3"
    exit 1
} elif [[ $am_maj -eq 1 && $am_min -eq 6 && $am_sub -lt 3 ]] {
    echo "automake version is too old:$am_maj.$am_min.$am_sub < required 1.6.3"
    exit 1
}

# make sure libtool is up-to-date
setglobal lt_ver = $[libtool --version | head -n 1 | awk '{print $4}]
setglobal lt_maj = $[echo $lt_ver|sed 's/\..*//]
setglobal lt_min = $[echo $lt_ver|sed 's/[^\.]*\.\([^\.]*\)\.*.*/\1/]
setglobal lt_sub = $[echo $lt_ver|sed 's/[^\.]*\.[^\.]*\.*//]
if [[ $lt_maj -lt 1 ]] {
    echo Min libtool version is 1.4.2
    exit 1
} elif [[ $lt_maj -eq 1 && $lt_min -lt 4 ]] {
    echo "libtool version is too old:$lt_maj.$lt_min.$lt_sub < required 1.4.2"
    exit 1
} elif [[ $lt_maj -eq 1 && $lt_min -eq 4 && $lt_sub -lt 2 ]] {
    echo "libtool version is too old:$lt_maj.$lt_min.$lt_sub < required 1.4.2"
    exit 1
}

# cleanup
find . '(' -name Makefile.in -o -name aclocal.m4 -o -name autom4te.cache -o -name configure -o -name aclocal.m4 ')' -exec 'r'm -rf {} ';' -prune

aclocal -I config && \
libtoolize --force --copy && \
autoheader && \
automake --foreign --add-missing --copy && \
autoconf