tree 6629dfcdfe32a599fcd9430732029e4bc118c8d8
parent e23a7fdeb4b8174b51f8ffe9ba3cc22f62c3a685
author Tom Finegan <tomfinegan@google.com> 1539881633 -0700
committer Tom Finegan <tomfinegan@google.com> 1539896012 +0000

cmake: Fix aom_pc warning.

- Create the dummy source and add it to the aom_pc target
  to avoid an empty library warning.
- Fix create_dummy_source_file(), which was broken when
  used by callers except add_dummy_source_file_to_target().
  add_dummy_source_file_to_target() worked due to macro
  expansion: The local variable in the macro was the same
  name as the one in the function calling, allowing the
  macro to work without the missing step of assigning the
  dummy source file name to the output variable.

BUG=aomedia:2195

Change-Id: I2a27c9dd521f669b805f046d2538e08ee0f4e2ab