android_project:build:mod:buildprop [CVPCS Android Wiki]

In this section you will be told to open files, and be given a few lines of code with a + sign to indicate what to add and where to each file(much like a github commit.)

when adding the lines to the file you will add the line noted with the plus(+) sign, but not the plus sign itself.

cd ~/android/system/build/core
gedit product.mk

in the file that opens Ctrl+f and search for on of the lines above, or below, the + sign, and insert the line marked with the + sign in the correct position.

  _product_var_list := \
+     PRODUCT_BUILD_PROP_OVERRIDES \
      PRODUCT_NAME \

save and close the file

cd ~/android/system/build/core
gedit product_config.mk

once again, search for the position of the lines to be inserted, and insert the lines marked by a + sign.

Be sure to keep formatting consistent with all other similar lines or there is a good chance you will break something

 PRODUCT_PROPERTY_OVERRIDES := \
         $(strip $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_PROPERTY_OVERRIDES))
+PRODUCT_BUILD_PROP_OVERRIDES := \
+        $(strip $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_BUILD_PROP_OVERRIDES))
+
 # Should we use the default resources or add any product specific overlays
 PRODUCT_PACKAGE_OVERLAYS := \

save and close the file

cd ~/android/system/build/core
gedit Makefile

Same as before find where the line needs to be added and add it.

          TARGET_CPU_ABI2="$(TARGET_CPU_ABI2)" \
+         $(PRODUCT_BUILD_PROP_OVERRIDES) \
  bash $(BUILDINFO_SH) > $@

save and exit the file.

congratulations, the BUILD_PROP_OVERRIDES that are located in the vendor setup will now be inserted into your build this preventing the need for the build.prop to be modified when running 'make otapackage'