** Also affects: unity (Ubuntu)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1644062

Title:
  googletest 1.8.0-2 (on zesty) breaks existing builds [add_library
  cannot create target "gmock" ...]

Status in Mir:
  Fix Committed
Status in Mir 0.25 series:
  Fix Committed
Status in cmake-extras package in Ubuntu:
  Fix Released
Status in content-hub package in Ubuntu:
  In Progress
Status in googletest package in Ubuntu:
  Won't Fix
Status in mir package in Ubuntu:
  Triaged
Status in unity package in Ubuntu:
  New

Bug description:
  After upgrading to 1.8.0-2 (from 1.7.0-4), our previously-working
  builds break:

  CMake Error at /usr/src/googletest/googletest/cmake/internal_utils.cmake:149 
(add_library):
     add_library cannot create target "gmock" because another target with the
     same name already exists.  The existing target is a static library created
     in source directory "/usr/src/googletest/googlemock".  See documentation
     for policy CMP0002 for more details.
   Call Stack (most recent call first):
     /usr/src/googletest/googletest/cmake/internal_utils.cmake:172 
(cxx_library_with_type)
     /usr/src/gmock/CMakeLists.txt:84 (cxx_library)


   CMake Error at /usr/src/googletest/googletest/cmake/internal_utils.cmake:149 
(add_library):
     add_library cannot create target "gmock_main" because another target with
     the same name already exists.  The existing target is a static library
     created in source directory "/usr/src/googletest/googlemock".  See
     documentation for policy CMP0002 for more details.
   Call Stack (most recent call first):
     /usr/src/googletest/googletest/cmake/internal_utils.cmake:172 
(cxx_library_with_type)
     /usr/src/gmock/CMakeLists.txt:89 (cxx_library)


   CMake Error at /usr/src/gmock/CMakeLists.txt:106 (install):
     install TARGETS given target "gmock" which does not exist in this
     directory.

  The CMakeLists.txt in our project that triggers this error does this:

  set(old_cxx_flags ${CMAKE_CXX_FLAGS})
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g -Wno-old-style-cast 
-Wno-missing-field-initializers")
  find_package(GMock)
  set(CMAKE_CXX_FLAGS ${old_cxx_flags})

  This used to work fine, but no breaks on zesty.

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