#!/bin/sh
#set -x
# helps bootstrapping am-utils, when checked out from CVS
# requires GNU autoconf and GNU automake
# this is not meant to go into the distributions
# Erez Zadok <ezk@cs.columbia.edu>

validateversion() {
    local v="$(autoreconf --version 2>&1 | head -1)"
    case "$v" in
    *2.69)	;;
    *)		echo "am-utils requires autoconf 2.69, you have:"
		echo "	$v"
		exit 1;;
    esac
}

# test cwd
test -f ../amd/amd.c && cd ..
if [ ! -f amd/amd.c ]; then
    echo "Must run $0 from the top level source directory."
    exit 1
fi

# validate macros directory and some macro files
if [ ! -d m4/macros ]; then
    echo No m4/macros directory found!
    exit 1
fi
if [ ! -f m4/macros/HEADER ]; then
    echo No m4/macros/HEADER file found!
    exit 1
fi

# remove any remaining autom4te.cache directory
rm -fr autom4te.cache autom4te-*.cache

# generate acinclude.m4 file
echo "AMU: prepare acinclude.m4..."
test -f acinclude.m4 && mv -f acinclude.m4 acinclude.m4.old
(cd m4/macros
 for i in HEADER *.m4; do
     cat $i
     echo
     echo
 done
 cat TRAILER
) > acinclude.m4

# generate the rest of the scripts
echo "AMU: autoreconf..."
validateversion
if autoreconf -f -i; then
    :
else
    echo "autoreconf command failed.  fix errors and rerun $0."
    exit 2
fi

# save timestamp
echo "AMU: save timestamp..."
echo timestamp > stamp-h.in

exit 0