From 787066e57ef86c9ffb3dbe71de56350b46160d7d Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pj@pehjota.net>
Date: Mon, 01 Sep 2014 09:55:38 -0400
Subject: build: Get host arch and plat

---
(limited to 'lib/cmd')

diff --git a/lib/cmd/build.sh b/lib/cmd/build.sh
index a7af6b9..843e5f2 100644
--- a/lib/cmd/build.sh
+++ b/lib/cmd/build.sh
@@ -23,9 +23,16 @@ use chroot
 use rand
 use package
 
+cmd_build_old_opkbuild=
+cmd_build_opkbuild_package=
+cmd_build_opkbuild_version=
+
 cmd_build_main()
 {
 	local root=
+	local opkbuild_plat_opt=
+	local arch=
+	local plat=
 	local first_arg=
 	local prev_arg=
 	local arg=
@@ -42,6 +49,30 @@ cmd_build_main()
 	root="${1}"
 	shift 1
 
+	# opkbuild's platform option will be changing from -P to -p.  Detect
+	# either, depending on the version of opkbuild installed.
+	cmd_build_old_opkbuild=true
+	parse_control "${root}/var/lib/opkg/status" \
+		cmd_build_opkbuild_field_cb cmd_build_opkbuild_para_cb \
+		'Package Version'
+	if ${cmd_build_old_opkbuild}; then
+		opkbuild_plat_opt='P'
+	else
+		opkbuild_plat_opt='p'
+	fi
+	arch="$(cat "${root}/etc/proteanos_arch")"
+	plat="$(cat "${root}/etc/proteanos_plat")"
+	while getopts "a:${opkbuild_plat_opt}:" opt 2>/dev/null; do
+		case "${opt}" in
+			a)
+				arch="${OPTARG}"
+				;;
+			${opkbuild_plat_opt})
+				plat="${OPTARG}"
+				;;
+		esac
+	done
+
 	first_arg=true
 	prev_arg=
 	for arg in "${@}"; do
@@ -104,6 +135,40 @@ cmd_build_main()
 	rmdir "${root}${dir}"
 }
 
+cmd_build_opkbuild_field_cb()
+{
+	local name="${1}"
+	local value="${2}"
+
+	case "${name}" in
+		Package)
+			cmd_build_opkbuild_package="${value}"
+			;;
+		Version)
+			cmd_build_opkbuild_version="${value}"
+			;;
+	esac
+
+	return 0
+}
+
+cmd_build_opkbuild_para_cb()
+{
+	if [ "x${cmd_build_opkbuild_package}" = 'xopkbuild' ]; then
+		case "${cmd_build_opkbuild_version}" in
+			3.0.0~beta[3-5]-*)
+				cmd_build_old_opkbuild=true
+				;;
+			*)
+				cmd_build_old_opkbuild=false
+				;;
+		esac
+		return 1
+	fi
+
+	return 0
+}
+
 cmd_build_make_deps_pkg()
 {
 	local build_dir="${1}"
--
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