[initramfs] Added custom initramfs_install() to skip build-time only packages

build-initramfs.in

@@ -0,0 +1,32 @@
+# --- SDE-COPYRIGHT-NOTE-BEGIN ---
+# This copyright note is auto-generated by ./scripts/Create-CopyPatch.
+#
+# Filename: target/Idunn/build-initramfs.in
+# Copyright (C) 2008 The OpenSDE Project
+#
+# More information can be found in the files COPYING and README.
+#
+# 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; version 2 of the License. A copy of the
+# GNU General Public License can be found in the file COPYING.
+# --- SDE-COPYRIGHT-NOTE-END ---
+
+initramfs_install()
+{
+	local pkg="$1" sandbox="$2" rootfs="$3"
+	shift 3
+
+	case "$pkg" in
+	linux-header|ccache|autoconf|automake|binutils|flex|libtool|)
+		# skip build-time only stuff
+		;;
+	*)
+		# install what is flisted
+		return 0
+		;;
+	esac
+
+	return 1
+}
+