Adds a gtest_disable_pthreads CMake option; also fixes an include order problem in the cmake script.
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zhanyong.wan
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e5974e3f43
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9c48242258
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@ -1,8 +1,5 @@
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########################################################################
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# Experimental CMake build script for Google Test.
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#
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# Consider this a prototype. It will change drastically. For now,
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# this is only for people on the cutting edge.
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# CMake build script for Google Test.
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#
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# To run the tests for Google Test itself on Linux, use 'make test' or
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# ctest. You can select which tests to run using 'ctest -R regex'.
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@ -23,6 +20,9 @@ option(gtest_build_tests "Build all of gtest's own tests." OFF)
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option(gtest_build_samples "Build gtest's sample programs." OFF)
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option(gtest_disable_pthreads "Disable uses of pthreads in gtest." OFF)
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# Defines pre_project_set_up_hermetic_build() and set_up_hermetic_build().
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include(cmake/hermetic_build.cmake OPTIONAL)
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if (COMMAND pre_project_set_up_hermetic_build)
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@ -46,10 +46,10 @@ if (COMMAND set_up_hermetic_build)
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set_up_hermetic_build()
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endif()
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# Defines functions and variables used by Google Test.
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# Define helper functions and macros used by Google Test.
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include(cmake/internal_utils.cmake)
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fix_default_settings() # Defined in internal_utils.cmake.
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config_compiler_and_linker() # Defined in internal_utils.cmake.
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# Where Google Test's .h files can be found.
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include_directories(
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@ -1,13 +1,22 @@
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# NOTE: This file can be included both into Google Test's and Google Mock's
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# build scripts, so actions and functions defined here need to be
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# idempotent.
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# Defines functions and macros useful for building Google Test and
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# Google Mock.
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#
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# Note:
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#
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# - This file will be run twice when building Google Mock (once via
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# Google Test's CMakeLists.txt, and once via Google Mock's).
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# Therefore it shouldn't have any side effects other than defining
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# the functions and macros.
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#
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# - The functions/macros defined in this file may depend on Google
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# Test and Google Mock's option() definitions, and thus must be
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# called *after* the options have been defined.
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# Defines CMAKE_USE_PTHREADS_INIT and CMAKE_THREAD_LIBS_INIT.
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find_package(Threads)
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# macro is required here, as inside a function string() will update
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# variables only at the function scope.
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macro(fix_default_settings)
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# Tweaks CMake's default compiler/linker settings to suit Google Test's needs.
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#
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# This must be a macro(), as inside a function string() can only
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# update variables in the function scope.
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macro(fix_default_compiler_settings_)
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if (MSVC)
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# For MSVC, CMake sets certain flags to defaults we want to override.
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# This replacement code is taken from sample in the CMake Wiki at
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@ -33,62 +42,69 @@ macro(fix_default_settings)
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endif()
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endmacro()
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# Defines the compiler/linker flags used to build gtest. You can
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# tweak these definitions to suit your need. A variable's value is
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# empty before it's explicitly assigned to.
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# Defines the compiler/linker flags used to build Google Test and
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# Google Mock. You can tweak these definitions to suit your need. A
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# variable's value is empty before it's explicitly assigned to.
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macro(config_compiler_and_linker)
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if (NOT gtest_disable_pthreads)
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# Defines CMAKE_USE_PTHREADS_INIT and CMAKE_THREAD_LIBS_INIT.
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find_package(Threads)
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endif()
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if (MSVC)
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# Newlines inside flags variables break CMake's NMake generator.
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# TODO(vladl@google.com): Add -RTCs and -RTCu to debug builds.
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set(cxx_base_flags "-GS -W4 -WX -wd4127 -wd4251 -wd4275 -nologo -J -Zi")
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set(cxx_base_flags "${cxx_base_flags} -D_UNICODE -DUNICODE -DWIN32 -D_WIN32")
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set(cxx_base_flags "${cxx_base_flags} -DSTRICT -DWIN32_LEAN_AND_MEAN")
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set(cxx_exception_flags "-EHsc -D_HAS_EXCEPTIONS=1")
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set(cxx_no_exception_flags "-D_HAS_EXCEPTIONS=0")
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set(cxx_no_rtti_flags "-GR-")
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elseif (CMAKE_COMPILER_IS_GNUCXX)
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set(cxx_base_flags "-Wall -Wshadow")
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set(cxx_exception_flags "-fexceptions")
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set(cxx_no_exception_flags "-fno-exceptions")
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# Until version 4.3.2, GCC doesn't define a macro to indicate
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# whether RTTI is enabled. Therefore we define GTEST_HAS_RTTI
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# explicitly.
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set(cxx_no_rtti_flags "-fno-rtti -DGTEST_HAS_RTTI=0")
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set(cxx_strict_flags "-Wextra")
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elseif (CMAKE_CXX_COMPILER_ID STREQUAL "SunPro")
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set(cxx_exception_flags "-features=except")
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# Sun Pro doesn't provide macros to indicate whether exceptions and
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# RTTI are enabled, so we define GTEST_HAS_* explicitly.
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set(cxx_no_exception_flags "-features=no%except -DGTEST_HAS_EXCEPTIONS=0")
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set(cxx_no_rtti_flags "-features=no%rtti -DGTEST_HAS_RTTI=0")
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elseif (CMAKE_CXX_COMPILER_ID STREQUAL "VisualAge" OR
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CMAKE_CXX_COMPILER_ID STREQUAL "XL")
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# CMake 2.8 changes Visual Age's compiler ID to "XL".
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set(cxx_exception_flags "-qeh")
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set(cxx_no_exception_flags "-qnoeh")
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# Until version 9.0, Visual Age doesn't define a macro to indicate
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# whether RTTI is enabled. Therefore we define GTEST_HAS_RTTI
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# explicitly.
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set(cxx_no_rtti_flags "-qnortti -DGTEST_HAS_RTTI=0")
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endif()
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fix_default_compiler_settings_()
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if (MSVC)
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# Newlines inside flags variables break CMake's NMake generator.
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# TODO(vladl@google.com): Add -RTCs and -RTCu to debug builds.
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set(cxx_base_flags "-GS -W4 -WX -wd4127 -wd4251 -wd4275 -nologo -J -Zi")
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set(cxx_base_flags "${cxx_base_flags} -D_UNICODE -DUNICODE -DWIN32 -D_WIN32")
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set(cxx_base_flags "${cxx_base_flags} -DSTRICT -DWIN32_LEAN_AND_MEAN")
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set(cxx_exception_flags "-EHsc -D_HAS_EXCEPTIONS=1")
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set(cxx_no_exception_flags "-D_HAS_EXCEPTIONS=0")
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set(cxx_no_rtti_flags "-GR-")
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elseif (CMAKE_COMPILER_IS_GNUCXX)
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set(cxx_base_flags "-Wall -Wshadow")
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set(cxx_exception_flags "-fexceptions")
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set(cxx_no_exception_flags "-fno-exceptions")
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# Until version 4.3.2, GCC doesn't define a macro to indicate
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# whether RTTI is enabled. Therefore we define GTEST_HAS_RTTI
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# explicitly.
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set(cxx_no_rtti_flags "-fno-rtti -DGTEST_HAS_RTTI=0")
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set(cxx_strict_flags "-Wextra")
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elseif (CMAKE_CXX_COMPILER_ID STREQUAL "SunPro")
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set(cxx_exception_flags "-features=except")
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# Sun Pro doesn't provide macros to indicate whether exceptions and
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# RTTI are enabled, so we define GTEST_HAS_* explicitly.
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set(cxx_no_exception_flags "-features=no%except -DGTEST_HAS_EXCEPTIONS=0")
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set(cxx_no_rtti_flags "-features=no%rtti -DGTEST_HAS_RTTI=0")
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elseif (CMAKE_CXX_COMPILER_ID STREQUAL "VisualAge" OR
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CMAKE_CXX_COMPILER_ID STREQUAL "XL")
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# CMake 2.8 changes Visual Age's compiler ID to "XL".
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set(cxx_exception_flags "-qeh")
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set(cxx_no_exception_flags "-qnoeh")
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# Until version 9.0, Visual Age doesn't define a macro to indicate
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# whether RTTI is enabled. Therefore we define GTEST_HAS_RTTI
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# explicitly.
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set(cxx_no_rtti_flags "-qnortti -DGTEST_HAS_RTTI=0")
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endif()
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if (CMAKE_USE_PTHREADS_INIT) # The pthreads library is available.
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set(cxx_base_flags "${cxx_base_flags} -DGTEST_HAS_PTHREAD=1")
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endif()
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if (CMAKE_USE_PTHREADS_INIT) # The pthreads library is available and allowed.
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set(cxx_base_flags "${cxx_base_flags} -DGTEST_HAS_PTHREAD=1")
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else()
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set(cxx_base_flags "${cxx_base_flags} -DGTEST_HAS_PTHREAD=0")
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endif()
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# For building gtest's own tests and samples.
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set(cxx_exception "${CMAKE_CXX_FLAGS} ${cxx_base_flags} ${cxx_exception_flags}")
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set(cxx_no_exception
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# For building gtest's own tests and samples.
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set(cxx_exception "${CMAKE_CXX_FLAGS} ${cxx_base_flags} ${cxx_exception_flags}")
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set(cxx_no_exception
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"${CMAKE_CXX_FLAGS} ${cxx_base_flags} ${cxx_no_exception_flags}")
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set(cxx_default "${cxx_exception}")
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set(cxx_no_rtti "${cxx_default} ${cxx_no_rtti_flags}")
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set(cxx_use_own_tuple "${cxx_default} -DGTEST_USE_OWN_TR1_TUPLE=1")
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set(cxx_default "${cxx_exception}")
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set(cxx_no_rtti "${cxx_default} ${cxx_no_rtti_flags}")
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set(cxx_use_own_tuple "${cxx_default} -DGTEST_USE_OWN_TR1_TUPLE=1")
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# For building the gtest libraries.
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set(cxx_strict "${cxx_default} ${cxx_strict_flags}")
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# For building the gtest libraries.
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set(cxx_strict "${cxx_default} ${cxx_strict_flags}")
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endmacro()
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########################################################################
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#
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# Defines the gtest & gtest_main libraries. User tests should link
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# with one of them.
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function(cxx_library_with_type name type cxx_flags)
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@ -108,6 +124,10 @@ function(cxx_library_with_type name type cxx_flags)
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endif()
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endfunction()
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########################################################################
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#
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# Helper functions for creating build targets.
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function(cxx_shared_library name cxx_flags)
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cxx_library_with_type(${name} SHARED "${cxx_flags}" ${ARGN})
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endfunction()
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