#!/bin/sh
#
# Regenerate the autotools build system (configure, Makefile.in, config.h.in,
# libtool, the aux scripts) from configure.ac and the Makefile.am files.
#
# Run this once after a fresh git clone, before ./configure. Release tarballs
# (made with "make dist") already ship these files, so people building from a
# tarball do not need autotools and do not run this.
#
# Requires: autoconf, automake, libtool (the autoreconf toolchain).

set -e

# shellcheck disable=SC1007  # "CDPATH= cd" is a deliberate empty-CDPATH prefix.
srcdir=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
cd "$srcdir"

if ! command -v autoreconf >/dev/null 2>&1; then
    echo "bootstrap: autoreconf not found; install autoconf, automake and libtool" >&2
    echo "           (or build from a release tarball, which ships ./configure)" >&2
    exit 1
fi

exec autoreconf -fi "$@"