^CMake Deprecation Warning at SourceProperty-CMP0070-OLD.cmake:[0-9]+ \(cmake_policy\):
  The OLD behavior for policy CMP0070 will be removed from a future version
  of CMake.

  The cmake-policies\(7\) manual explains that the OLD behaviors of all
  policies are deprecated and that a policy should be set to OLD only under
  specific short-term circumstances.  Projects should be ported to the NEW
  behavior and not rely on setting a policy to OLD.
Call Stack \(most recent call first\):
  CMakeLists.txt:[0-9]+ \(include\)
+
CMake Error at SourceProperty-CMP0070-OLD.cmake:[0-9]+ \(target_sources\):
  Cannot find source file:

.*\/relative-output-OLD\.c

  Tried extensions ([^
]+
)+Call Stack \(most recent call first\):
  CMakeLists.txt:[0-9]+ \(include\)
+
CMake Generate step failed.  Build files cannot be regenerated correctly.$