$ cat device/samsung/dreamlte/AndroidProducts.mk; . ./build/envsetup.sh ; print_lunch_menu;

$ cat devicesamsungdreamlteAndroidProducts.mk; . .buildenvsetup.sh ; print_lunch_menu;

$ cat device/samsung/dreamlte/AndroidProducts.mk
#
# Copyright (C) 2019 The LineageOS Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

PRODUCT_MAKEFILES := \
    $(LOCAL_DIR)/lineage_dreamlte.mk

COMMON_LUNCH_CHOICES := \
    lineage_dreamlte-eng \
    lineage_dreamlte-user \
    lineage_dreamlte-userdebug \

$ . ./build/envsetup.sh ; print_lunch_menu

You're building on Linux

Lunch menu... pick a combo:
     1. aosp_arm-eng
     2. aosp_arm64-eng
     3. aosp_x86-eng
     4. aosp_x86_64-eng
     5. arm_krait-eng
     6. arm_v7_v8-eng
     7. armv8-eng
     8. armv8_kryo385-eng
     9. lineage_dreamlte-eng
     10. lineage_dreamlte-user
     11. lineage_dreamlte-userdebug
     12. silvermont-eng