handle/make/*: unified main() function

Signed-off-by: Leah Rowe <leah@libreboot.org>

include/make.sh

@@ -0,0 +1,30 @@
+# SPDX-License-Identifier: GPL-3.0-or-later
+# SPDX-FileCopyrightText: 2023 Leah Rowe <leah@libreboot.org>
+
+main()
+{
+	while getopts b:m:u:c:x: option
+	do
+		_flag="${1}"
+		case "${1}" in
+		-b) mode="all" ;;
+		-u) mode="oldconfig" ;;
+		-m) mode="menuconfig" ;;
+		-c) mode="distclean" ;;
+		-x) mode="crossgcc-clean" ;;
+		*) fail "Invalid option" ;;
+		esac
+		shift; project="${OPTARG}"; shift
+	done
+	[ -z "${mode}" ] && fail "mode not given (-m, -u, -b, -c or -x)"
+	[ -z "${project}" ] && fail "project name not specified"
+
+	handle_dependencies $@
+	handle_targets
+}
+
+fail()
+{
+	[ -z "${codedir}" ] || ./handle make file -c "${codedir}" || :
+	err "${1}"
+}