Merge lp:~michihenning/unity-api/fix-clang-warning into lp:unity-api

[Michi Henning]

Fix warning from clang when building libgtest about unused field.

Fix warning from clang when building libgtest about unused field.

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PASSED: Continuous integration, rev:109
http://jenkins.qa.ubuntu.com/job/unity-api-ci/126/
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review: Approve (continuous-integration)

=== modified file 'test/gtest/libgtest/CMakeLists.txt'
--- test/gtest/libgtest/CMakeLists.txt	2013-05-13 11:39:49 +0000
+++ test/gtest/libgtest/CMakeLists.txt	2013-10-21 04:36:56 +0000
@@ -11,3 +11,8 @@
 )
 
 set_target_properties(gtest PROPERTIES INCLUDE_DIRECTORIES ${GTEST_INCLUDE_DIR})
+
+# Clang complains about unused private field 'pretty_' in gtest-internal-inl.h.
+if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
+    set_target_properties(gtest PROPERTIES COMPILE_FLAGS "-Wno-unused-private-field")
+endif()