Initial commit. Write build system.

1 files changed, 169 insertions, 0 deletions

diff --git a/configure b/configure
new file mode 100755
index 0000000..0eefd30
--- /dev/null
+++ b/configure
@@ -0,0 +1,169 @@
+#! /bin/sh
+#
+# opkhelper
+# configure
+# Configuration script to generate Makefile.
+#
+# Copyright (C) 2012 Patrick "P. J." McDermott
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+PACKAGE='opkhelper'
+VERSION='0.1.0'
+
+print_usage()
+{
+	printf 'Usage: %s [OPTION]...\n' "$1"
+}
+
+print_help()
+{
+	cat <<EOF
+\`configure' configures ${PACKAGE} ${VERSION} to adapt to ONE kind of system.
+
+$(print_usage "${1}")
+
+Configuration:
+  -h, --help            display this help and exit
+  -V, --version         display version information and exit
+  -q, --quiet           do not print \`checking ...' messages
+      --srcdir=SRCDIR   find the scripts in SRCDIR
+                        default: configure dir
+
+Installation directories:
+  --prefix=PREFIX       install files under PREFIX
+                        default: /usr/local
+  --sbindir=SBINDIR     install scripts in SBINDIR
+                        default: PREFIX/sbin
+EOF
+}
+
+print_version()
+{
+	cat <<EOF
+${PACKAGE} ${VERSION} configure
+Not generated by GNU Autoconf
+
+Copyright (C) 2012 Patrick "P. J." McDermott
+License: GNU GPL version 3 or later <http://www.gnu.org/licenses/gpl.html>.
+This configure script is free software: you can redistribute and/or modify it.
+There is NO WARRANTY, to the extent permitted by law.
+EOF
+}
+
+opts=$(getopt -n "${0}" -o 'hVq' -l 'help,version,quiet' \
+	-l 'srcdir:,prefix:,sbindir:' -- "${@}")
+if [ ${?} -ne 0 ]; then
+	print_usage "${0}" >&2
+	exit 1;
+fi
+eval set -- "${opts}"
+while true; do
+	case "${1}" in
+		-h|--help)
+			print_help "${0}"
+			exit 0
+			;;
+		-V|--version)
+			print_version
+			exit 0
+			;;
+		-q|--quiet)
+			QUIET=true
+			shift
+			;;
+		--srcdir)
+			SRCDIR="${2}"
+			shift 2
+			;;
+		--prefix)
+			PREFIX="${2}"
+			shift 2
+			;;
+		--sbindir)
+			# Leave PREFIX unexpanded for now, in case it isn't set yet.
+			SBINDIR="\${PREFIX}/${2}"
+			shift 2
+			;;
+		--)
+			shift
+			break
+			;;
+		*)
+			print_usage "${0}" >&2
+			exit 1
+			;;
+	esac
+done
+
+if [ -z "${QUIET}" ]; then
+	QUIET=false
+fi
+
+if [ -z "${SRCDIR}" ]; then
+	SRCDIR=$(dirname "${0}")
+fi
+if [ -z "${PREFIX}" ]; then
+	PREFIX=/usr/local
+fi
+if [ -z "${SBINDIR}" ]; then
+	SBINDIR=${PREFIX}/sbin
+fi
+# Expand PREFIX if it's there.
+eval "SBINDIR=${SBINDIR}"
+
+find_dependency()
+{
+	dep=${1}
+	var=${2}
+	shift 2
+
+	${QUIET} || printf 'checking for %s... ' "${dep}"
+
+	while [ ${#} -gt 0 ]; do
+		if [ -f "${1}/${dep}" ]; then
+			${QUIET} || printf '%s/%s\n' "${1}" "${dep}"
+			eval "${var}=${1}/${dep}"
+			return 0
+		fi
+		shift
+	done
+
+	${QUIET} || printf 'not found\n'
+	missing_dependencies=true
+	return 1
+}
+
+missing_dependencies=false
+
+find_dependency sh SHELL /bin
+find_dependency install INSTALL /usr/bin
+
+if ${missing_dependencies}; then
+	printf '\nSome dependencies could not be found.\n'
+	printf 'Please make sure all dependencies are installed and try again.\n\n'
+	exit 1
+fi
+
+sed_script="
+s&@shell@&${SHELL}&
+s&@install@&${INSTALL} -c&
+s&@srcdir@&${SRCDIR}&
+s&@prefix@&${PREFIX}&
+s&@sbindir@&${SBINDIR}&"
+
+# Replace configuration variables in Makefile.in
+sed "$sed_script" ${SRCDIR}/Makefile.in > Makefile
+
+printf '\nConfiguration complete!\n\n'