[libcxx] r243574 - Recommit r243503 "[libcxx] Cleanup CMake configuration and integrate with LLVM"

Eric Fiselier eric at efcs.ca
Wed Jul 29 14:55:29 PDT 2015


Would you be able to supply the logs?
On Jul 29, 2015 5:50 PM, "Kostya Serebryany" <kcc at google.com> wrote:

> I am seeing build failure when trying to run "ninja check-msan":
>
> [39/58] Performing configure step for 'libcxx_msan-with-call'
> FAILED: cd
> /usr/local/google/home/kcc/llvm-gcc-build/projects/compiler-rt/lib/msan/libcxx_msan-with-call/src/libcxx_msan-with-call-build
> && /usr/bin/cmake -P
> /usr/local/google/home/kcc/llvm-gcc-build/projects/compiler-rt/lib/msan/tests/../libcxx_msan-with-call/src/libcxx_msan-with-call-stamp/libcxx_msan-with-call-configure.cmake
> && /usr/bin/cmake -E touch
> /usr/local/google/home/kcc/llvm-gcc-build/projects/compiler-rt/lib/msan/tests/../libcxx_msan-with-call/src/libcxx_msan-with-call-stamp/libcxx_msan-with-call-configure
> CMake Error at
> /usr/local/google/home/kcc/llvm-gcc-build/projects/compiler-rt/lib/msan/libcxx_msan-with-call/src/libcxx_msan-with-call-stamp/libcxx_msan-with-call-configure.cmake:16
> (message):
>   Command failed: 1
>
>    '/usr/bin/cmake'
> '-DCMAKE_C_COMPILER=/usr/local/google/home/kcc/llvm-gcc-build/./bin/clang'
> '-DCMAKE_CXX_COMPILER=/usr/local/google/home/kcc/llvm-gcc-build/./bin/clang'
> '-DCMAKE_C_FLAGS= -fsanitize=memory -fsanitize-memory-track-origins
> -Wno-pedantic -fsanitize=memory -fsanitize-memory-track-origins
> -Wno-pedantic -mllvm -msan-instrumentation-with-call-threshold=0'
> '-DCMAKE_CXX_FLAGS= -fsanitize=memory -fsanitize-memory-track-origins
> -Wno-pedantic -fsanitize=memory -fsanitize-memory-track-origins
> -Wno-pedantic -mllvm -msan-instrumentation-with-call-threshold=0'
> '-DCMAKE_BUILD_TYPE=Release'
> '-DCMAKE_INSTALL_PREFIX:PATH=/usr/local/google/home/kcc/llvm-gcc-build/projects/compiler-rt/lib/msan/tests/../libcxx_msan-with-call'
> '-GNinja' '/usr/local/google/home/kcc/llvm/projects/libcxx'
>
>   See also
>
>
> /usr/local/google/home/kcc/llvm-gcc-build/projects/compiler-rt/lib/msan/tests/../libcxx_msan-with-call/src/libcxx_msan-with-call-stamp/libcxx_msan-with-call-configure-*.log
>
>
> Looks like this is the only change that might have caused this.
>
> On Wed, Jul 29, 2015 at 2:07 PM, Eric Fiselier <eric at efcs.ca> wrote:
>
>> Author: ericwf
>> Date: Wed Jul 29 16:07:28 2015
>> New Revision: 243574
>>
>> URL: http://llvm.org/viewvc/llvm-project?rev=243574&view=rev
>> Log:
>> Recommit r243503 "[libcxx] Cleanup CMake configuration and integrate with
>> LLVM"
>>
>> This change was reverted in r243550 because it broke clang-format builds
>> (see PR24306).
>>
>> This patch recommits a fixed version of the original.
>>
>> Added:
>>     libcxx/trunk/cmake/Modules/FindLLVM.cmake
>>     libcxx/trunk/cmake/Modules/HandleLibcxxFlags.cmake
>> Modified:
>>     libcxx/trunk/CMakeLists.txt
>>     libcxx/trunk/cmake/Modules/HandleLibCXXABI.cmake
>>     libcxx/trunk/cmake/config-ix.cmake
>>     libcxx/trunk/lib/CMakeLists.txt
>>     libcxx/trunk/test/CMakeLists.txt
>>     libcxx/trunk/test/lit.site.cfg.in
>>     libcxx/trunk/www/index.html
>>
>> Modified: libcxx/trunk/CMakeLists.txt
>> URL:
>> http://llvm.org/viewvc/llvm-project/libcxx/trunk/CMakeLists.txt?rev=243574&r1=243573&r2=243574&view=diff
>>
>> ==============================================================================
>> --- libcxx/trunk/CMakeLists.txt (original)
>> +++ libcxx/trunk/CMakeLists.txt Wed Jul 29 16:07:28 2015
>> @@ -3,13 +3,16 @@
>>
>>  #===============================================================================
>>  # Setup Project
>>
>>  #===============================================================================
>> -
>> -project(libcxx CXX C)
>>  cmake_minimum_required(VERSION 2.8)
>>
>>  if(POLICY CMP0042)
>>    cmake_policy(SET CMP0042 NEW) # Set MACOSX_RPATH=YES by default
>>  endif()
>> +if(POLICY CMP0022)
>> +  cmake_policy(SET CMP0022 NEW) # Required when interacting with LLVM
>> and Clang
>> +endif()
>> +
>> +project(libcxx CXX C)
>>
>>  set(PACKAGE_NAME libcxx)
>>  set(PACKAGE_VERSION trunk-svn)
>> @@ -30,52 +33,90 @@ MACRO_ENSURE_OUT_OF_SOURCE_BUILD(
>>   build directory and run 'cmake /path/to/${PROJECT_NAME} [options]'
>> there."
>>   )
>>
>> -if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
>> -  set(LIBCXX_LIBDIR_SUFFIX "" CACHE STRING
>> -      "Define suffix of library directory name (32/64)")
>> -
>> -  set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY
>> ${CMAKE_BINARY_DIR}/lib${LIBCXX_LIBDIR_SUFFIX})
>> -  set(CMAKE_LIBRARY_OUTPUT_DIRECTORY
>> ${CMAKE_BINARY_DIR}/lib${LIBCXX_LIBDIR_SUFFIX})
>> -
>> -  set(LIBCXX_BUILT_STANDALONE 1)
>> -else()
>> -  set(LIBCXX_LIBDIR_SUFFIX ${LLVM_LIBDIR_SUFFIX})
>> -endif()
>> +# Find the required bits of LLVM
>> +include(FindLLVM)
>>
>>
>>  #===============================================================================
>>  # Setup CMake Options
>>
>>  #===============================================================================
>>
>> -# Define options.
>> -option(LIBCXX_ENABLE_EXCEPTIONS "Use exceptions." ON)
>> -option(LIBCXX_ENABLE_RTTI "Use run time type information." ON)
>> +# Basic options
>> ---------------------------------------------------------------
>>  option(LIBCXX_ENABLE_ASSERTIONS "Enable assertions independent of build
>> mode." ON)
>> -option(LIBCXX_ENABLE_PEDANTIC "Compile with pedantic enabled." ON)
>> -option(LIBCXX_ENABLE_WERROR "Fail and stop if a warning is triggered."
>> OFF)
>> -option(LIBCXX_ENABLE_CXX1Y "Enable -std=c++1y and use of c++1y language
>> features if the compiler supports it." OFF)
>>  option(LIBCXX_ENABLE_SHARED "Build libc++ as a shared library." ON)
>> +
>> +set(LIBCXX_LIBDIR_SUFFIX "${LLVM_LIBDIR_SUFFIX}" CACHE STRING
>> +    "Define suffix of library directory name (32/64)")
>> +option(LIBCXX_INSTALL_HEADERS "Install the libc++ headers." ON)
>> +option(LIBCXX_INSTALL_SUPPORT_HEADERS "Install libc++ support headers."
>> ON)
>> +
>> +# ABI Library options
>> ---------------------------------------------------------
>> +set(LIBCXX_CXX_ABI "${LIBCXX_CXX_ABI}" CACHE STRING
>> +    "Specify C++ ABI library to use." FORCE)
>> +set(CXXABIS none libcxxabi libcxxrt libstdc++ libsupc++)
>> +set_property(CACHE LIBCXX_CXX_ABI PROPERTY STRINGS ;${CXXABIS})
>> +
>> +option(LIBCXX_ENABLE_STATIC_ABI_LIBRARY "Statically link the ABI
>> library" OFF)
>> +
>> +# Build libc++abi with libunwind. We need this option to determine
>> whether to
>> +# link with libunwind or libgcc_s while running the test cases.
>> +option(LIBCXXABI_USE_LLVM_UNWINDER "Build and use the LLVM unwinder."
>> OFF)
>> +
>> +# Target options
>> --------------------------------------------------------------
>> +option(LIBCXX_BUILD_32_BITS "Build 32 bit libc++." OFF)
>> +set(LIBCXX_SYSROOT "" CACHE STRING "Use alternate sysroot.")
>> +set(LIBCXX_GCC_TOOLCHAIN "" CACHE STRING "Use alternate GCC toolchain.")
>> +
>> +# Feature options
>> -------------------------------------------------------------
>> +option(LIBCXX_ENABLE_EXCEPTIONS "Use exceptions." ON)
>> +option(LIBCXX_ENABLE_RTTI "Use run time type information." ON)
>>  option(LIBCXX_ENABLE_GLOBAL_FILESYSTEM_NAMESPACE "Build libc++ with
>> support for the global filesystem namespace." ON)
>>  option(LIBCXX_ENABLE_STDIN "Build libc++ with support for
>> stdin/std::cin." ON)
>>  option(LIBCXX_ENABLE_STDOUT "Build libc++ with support for
>> stdout/std::cout." ON)
>>  option(LIBCXX_ENABLE_THREADS "Build libc++ with support for threads." ON)
>>  option(LIBCXX_ENABLE_THREAD_UNSAFE_C_FUNCTIONS "Build libc++ with
>> support for thread-unsafe C functions" ON)
>> -option(LIBCXX_BUILD_32_BITS "Build 32 bit libc++" OFF)
>>  option(LIBCXX_ENABLE_MONOTONIC_CLOCK
>>    "Build libc++ with support for a monotonic clock.
>>     This option may only be used when LIBCXX_ENABLE_THREADS=OFF." ON)
>> -option(LIBCXX_INSTALL_HEADERS "Install the libc++ headers." ON)
>> -option(LIBCXX_INSTALL_SUPPORT_HEADERS "Install libc++ support headers."
>> ON)
>> +
>> +# Misc options
>> ----------------------------------------------------------------
>> +option(LIBCXX_ENABLE_PEDANTIC "Compile with pedantic enabled." ON)
>> +option(LIBCXX_ENABLE_WERROR "Fail and stop if a warning is triggered."
>> OFF)
>> +
>>  option(LIBCXX_GENERATE_COVERAGE "Enable generating code coverage." OFF)
>>  set(LIBCXX_COVERAGE_LIBRARY "" CACHE STRING
>> -       "The Profile-rt library used to build with code coverage")
>> -option(LIBCXX_ENABLE_STATIC_ABI_LIBRARY "Statically link the ABI
>> library" OFF)
>> -set(LIBCXX_SYSROOT "" CACHE STRING "Use alternate sysroot.")
>> -set(LIBCXX_GCC_TOOLCHAIN "" CACHE STRING "Use alternate GCC toolchain.")
>> -if (LIBCXX_BUILT_STANDALONE)
>> -  set(LLVM_USE_SANITIZER "" CACHE STRING
>> -      "Define the sanitizer used to build the library and tests")
>> +    "The Profile-rt library used to build with code coverage")
>> +
>>
>> +#===============================================================================
>> +# Check option configurations
>>
>> +#===============================================================================
>> +
>> +# Ensure LIBCXX_ENABLE_MONOTONIC_CLOCK is set to ON only when
>> +# LIBCXX_ENABLE_THREADS is on.
>> +if(LIBCXX_ENABLE_THREADS AND NOT LIBCXX_ENABLE_MONOTONIC_CLOCK)
>> +  message(FATAL_ERROR "LIBCXX_ENABLE_MONOTONIC_CLOCK can only be set to
>> OFF"
>> +                      " when LIBCXX_ENABLE_THREADS is also set to OFF.")
>> +endif()
>> +
>> +# Ensure LLVM_USE_SANITIZER is not specified when
>> LIBCXX_GENERATE_COVERAGE
>> +# is ON.
>> +if (LLVM_USE_SANITIZER AND LIBCXX_GENERATE_COVERAGE)
>> +  message(FATAL_ERROR "LLVM_USE_SANITIZER cannot be used with
>> LIBCXX_GENERATE_COVERAGE")
>> +endif()
>> +
>> +# Set LIBCXX_BUILD_32_BITS to (LIBCXX_BUILD_32_BITS OR
>> LLVM_BUILD_32_BITS)
>> +# and check that we can build with 32 bits if requested.
>> +if (CMAKE_SIZEOF_VOID_P EQUAL 8 AND NOT WIN32)
>> +  if (LIBCXX_BUILD_32_BITS OR LLVM_BUILD_32_BITS)
>> +    if (NOT LLVM_BUILD_32_BITS) # Don't duplicate the output from LLVM
>> +      message(STATUS "Building 32 bits executables and libraries.")
>> +    endif()
>> +    set(LIBCXX_BUILD_32_BITS ON CACHE BOOL "" FORCE)
>> +  endif()
>> +elseif(LIBCXX_BUILD_32_BITS)
>> +  message(FATAL_ERROR "LIBCXX_BUILD_32_BITS=ON is not supported on this
>> platform.")
>>  endif()
>>
>> +# Check that this option is not enabled on Apple and emit a usage
>> warning.
>>  if (LIBCXX_ENABLE_STATIC_ABI_LIBRARY)
>>    if (APPLE)
>>      message(FATAL_ERROR "LIBCXX_ENABLE_STATIC_ABI_LIBRARY is not
>> supported on OS X")
>> @@ -84,27 +125,6 @@ if (LIBCXX_ENABLE_STATIC_ABI_LIBRARY)
>>    endif()
>>  endif()
>>
>> -set(CXXABIS none libcxxabi libcxxrt libstdc++ libsupc++)
>> -if (NOT LIBCXX_CXX_ABI)
>> -  if (NOT DEFINED LIBCXX_BUILT_STANDALONE AND
>> -      IS_DIRECTORY "${CMAKE_SOURCE_DIR}/projects/libcxxabi")
>> -    set(LIBCXX_CXX_ABI_LIBNAME "libcxxabi")
>> -    set(LIBCXX_CXX_ABI_INCLUDE_PATHS
>> "${CMAKE_SOURCE_DIR}/projects/libcxxabi/include")
>> -    set(LIBCXX_CXX_ABI_INTREE 1)
>> -  else ()
>> -    set(LIBCXX_CXX_ABI_LIBNAME "none")
>> -  endif ()
>> -else ()
>> -  set(LIBCXX_CXX_ABI_LIBNAME "${LIBCXX_CXX_ABI}")
>> -endif ()
>> -set(LIBCXX_CXX_ABI "${LIBCXX_CXX_ABI}" CACHE STRING
>> -    "Specify C++ ABI library to use." FORCE)
>> -set_property(CACHE LIBCXX_CXX_ABI PROPERTY STRINGS ;${CXXABIS})
>> -
>> -# Build libc++abi with libunwind. We need this option to determine
>> whether to
>> -# link with libunwind or libgcc_s while running the test cases.
>> -option(LIBCXXABI_USE_LLVM_UNWINDER "Build and use the LLVM unwinder."
>> OFF)
>> -
>>
>>  #===============================================================================
>>  # Configure System
>>
>>  #===============================================================================
>> @@ -114,234 +134,113 @@ set(LIBCXX_SOURCE_DIR  ${CMAKE_CURRENT_S
>>  set(LIBCXX_BINARY_DIR  ${CMAKE_CURRENT_BINARY_DIR})
>>  set(LIBCXX_LIBRARY_DIR ${CMAKE_BINARY_DIR}/lib${LIBCXX_LIBDIR_SUFFIX})
>>
>> +set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${LIBCXX_LIBRARY_DIR})
>> +set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${LIBCXX_LIBRARY_DIR})
>> +
>>  # Declare libc++ configuration variables.
>>  # They are intended for use as follows:
>>  # LIBCXX_CXX_FLAGS: General flags for both the compiler and linker.
>>  # LIBCXX_COMPILE_FLAGS: Compile only flags.
>>  # LIBCXX_LINK_FLAGS: Linker only flags.
>> -set(LIBCXX_CXX_FLAGS "")
>>  set(LIBCXX_COMPILE_FLAGS "")
>>  set(LIBCXX_LINK_FLAGS "")
>> +set(LIBCXX_LIBRARIES "")
>>
>>  # Configure compiler.
>>  include(config-ix)
>> -# Configure ABI library
>> -include(HandleLibCXXABI)
>> +
>>  # Configure coverage options.
>>  if (LIBCXX_GENERATE_COVERAGE)
>>    include(CodeCoverage)
>>    set(CMAKE_BUILD_TYPE "COVERAGE" CACHE STRING "" FORCE)
>>  endif()
>>
>> +string(TOUPPER "${CMAKE_BUILD_TYPE}" uppercase_CMAKE_BUILD_TYPE)
>> +
>>
>>  #===============================================================================
>>  # Setup Compiler Flags
>>
>>  #===============================================================================
>>
>> -# Get required flags.
>> -# On all systems the system c++ standard library headers need to be
>> excluded.
>> -if (MSVC)
>> -  # MSVC only has -X, which disables all default includes; including the
>> crt.
>> -  # Thus, we do nothing and hope we don't accidentally include any of
>> the C++
>> -  # headers.
>> -else()
>> -  if (LIBCXX_HAS_NOSTDINCXX_FLAG)
>> -    list(APPEND LIBCXX_COMPILE_FLAGS -nostdinc++)
>> -    string(REPLACE "-stdlib=libc++" "" CMAKE_CXX_FLAGS
>> "${CMAKE_CXX_FLAGS}")
>> -    string(REPLACE "-stdlib=libstdc++" "" CMAKE_CXX_FLAGS
>> "${CMAKE_CXX_FLAGS}")
>> -  endif()
>> -  # If c++1y has been enabled then attempt to use it. Fail if it is no
>> supported
>> -  # by the compiler. Otherwise choose c++11 and ensure the compiler
>> supports it.
>> -  if (LIBCXX_ENABLE_CXX1Y)
>> -    if (LIBCXX_HAS_STDCXX1Y_FLAG)
>> -      set(LIBCXX_STD_VERSION c++1y)
>> -    else()
>> -      message(FATAL_ERROR "c++1y was enabled but the compiler does not
>> support it.")
>> -    endif()
>> -  else()
>> -    if (LIBCXX_HAS_STDCXX11_FLAG)
>> -      set(LIBCXX_STD_VERSION c++11)
>> -    else()
>> -      message(FATAL_ERROR "c++11 is required by libc++ but is not
>> supported by the compiler")
>> -    endif()
>> -  endif()
>> -  # LIBCXX_STD_VERSION should always be set at this point.
>> -  list(APPEND LIBCXX_CXX_FLAGS "-std=${LIBCXX_STD_VERSION}")
>> -endif()
>> +include(HandleLibCXXABI) # Steup the ABI library flags
>>
>> -macro(append_if list condition var)
>> -  if (${condition})
>> -    list(APPEND ${list} ${var})
>> -  endif()
>> -endmacro()
>> +# Include macros for adding and removing libc++ flags.
>> +include(HandleLibcxxFlags)
>>
>> -# Get warning flags
>> -# Disable the system header pragma.
>> -add_definitions(-D_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
>> -if (NOT MSVC)
>> -  append_if(LIBCXX_COMPILE_FLAGS LIBCXX_HAS_WALL_FLAG -Wall)
>> -  list(APPEND LIBCXX_COMPILE_FLAGS -Werror=return-type)
>> +# Remove flags that may have snuck in.
>> +remove_flags(-DNDEBUG -UNDEBUG -D_DEBUG
>> +             -stdlib=libc++ -stdlib=libstdc++ -lc++abi -m32)
>> +
>> +# Required flags
>> ==============================================================
>> +add_compile_flags_if_supported(-std=c++11)
>> +if (NOT MSVC AND NOT LIBCXX_SUPPORTS_STD_EQ_CXX11_FLAG)
>> +  message(FATAL_ERROR "C++11 is required but the compiler does not
>> support -std=c++11")
>>  endif()
>>
>> -append_if(LIBCXX_COMPILE_FLAGS LIBCXX_HAS_W_FLAG -W)
>> -append_if(LIBCXX_COMPILE_FLAGS LIBCXX_HAS_WNO_UNUSED_PARAMETER_FLAG
>> -Wno-unused-parameter)
>> -append_if(LIBCXX_COMPILE_FLAGS LIBCXX_HAS_WWRITE_STRINGS_FLAG
>> -Wwrite-strings)
>> -append_if(LIBCXX_COMPILE_FLAGS LIBCXX_HAS_WNO_LONG_LONG_FLAG
>> -Wno-long-long)
>> +# On all systems the system c++ standard library headers need to be
>> excluded.
>> +# MSVC only has -X, which disables all default includes; including the
>> crt.
>> +# Thus, we do nothing and hope we don't accidentally include any of the
>> C++
>> +# headers
>> +add_compile_flags_if_supported(-nostdinc++)
>> +
>> +# Target flags
>> ================================================================
>> +add_flags_if(LIBCXX_BUILD_32_BITS -m32)
>> +add_flags_if(LIBCXX_TARGET_TRIPLE "-target ${LIBCXX_TARGET_TRIPLE}")
>> +add_flags_if(LIBCXX_SYSROOT "--sysroot ${LIBCXX_SYSROOT}")
>> +add_flags_if(LIBCXX_GCC_TOOLCHAIN "-gcc-toolchain
>> ${LIBCXX_GCC_TOOLCHAIN}")
>> +
>> +# Warning flags
>> ===============================================================
>> +add_definitions(-D_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
>> +add_compile_flags_if_supported(
>> +    -Wall -W -Wwrite-strings
>> +    -Wno-unused-parameter -Wno-long-long
>> +    -Werror=return-type)
>>  if (LIBCXX_ENABLE_WERROR)
>> -  append_if(LIBCXX_COMPILE_FLAGS LIBCXX_HAS_WERROR_FLAG -Werror)
>> -  append_if(LIBCXX_COMPILE_FLAGS LIBCXX_HAS_WX_FLAG -WX)
>> -else()
>> -  append_if(LIBCXX_COMPILE_FLAGS LIBCXX_HAS_WNO_ERROR_FLAG -Wno-error)
>> -  append_if(LIBCXX_COMPILE_FLAGS LIBCXX_HAS_NO_WX_FLAG -WX-)
>> +  add_compile_flags_if_supported(-Werror)
>> +  add_compile_flags_if_supported(-WX)
>>  endif()
>>  if (LIBCXX_ENABLE_PEDANTIC)
>> -  append_if(LIBCXX_COMPILE_FLAGS LIBCXX_HAS_PEDANTIC_FLAG -pedantic)
>> +  add_compile_flags_if_supported(-pedantic)
>>  endif()
>>
>> -# Get feature flags.
>> -# Exceptions
>> +# Exception flags
>> =============================================================
>>  if (LIBCXX_ENABLE_EXCEPTIONS)
>>    # Catches C++ exceptions only and tells the compiler to assume that
>> extern C
>>    # functions never throw a C++ exception.
>> -  append_if(LIBCXX_CXX_FLAGS LIBCXX_HAS_EHSC_FLAG -EHsc)
>> +  add_compile_flags_if_supported(-EHsc)
>>  else()
>> -  list(APPEND LIBCXX_CXX_FLAGS -D_LIBCPP_NO_EXCEPTIONS)
>> -  append_if(LIBCXX_CXX_FLAGS LIBCXX_HAS_NO_EHS_FLAG -EHs-)
>> -  append_if(LIBCXX_CXX_FLAGS LIBCXX_HAS_NO_EHA_FLAG -EHa-)
>> -  append_if(LIBCXX_CXX_FLAGS LIBCXX_HAS_FNO_EXCEPTIONS_FLAG
>> -fno-exceptions)
>> +  add_definitions(-D_LIBCPP_NO_EXCEPTIONS)
>> +  add_compile_flags_if_supported(-EHs- -EHa-)
>> +  add_compile_flags_if_supported(-fno-exceptions)
>>  endif()
>> -# RTTI
>> +
>> +# RTTI flags
>> ==================================================================
>>  if (NOT LIBCXX_ENABLE_RTTI)
>> -  list(APPEND LIBCXX_CXX_FLAGS -D_LIBCPP_NO_RTTI)
>> -  append_if(LIBCXX_CXX_FLAGS LIBCXX_HAS_NO_GR_FLAG -GR-)
>> -  append_if(LIBCXX_CXX_FLAGS LIBCXX_HAS_FNO_RTTI_FLAG -fno-rtti)
>> +  add_definitions(-D_LIBCPP_NO_RTTI)
>> +  add_compile_flags_if_supported(-GR-)
>> +  add_compile_flags_if_supported(-fno-rtti)
>>  endif()
>> -# Assert
>> -string(TOUPPER "${CMAKE_BUILD_TYPE}" uppercase_CMAKE_BUILD_TYPE)
>> +
>> +# Assertion flags
>> =============================================================
>> +define_if(LIBCXX_ENABLE_ASSERTIONS -UNDEBUG)
>> +define_if_not(LIBCXX_ENABLE_ASSERTIONS -DNDEBUG)
>>  if (LIBCXX_ENABLE_ASSERTIONS)
>>    # MSVC doesn't like _DEBUG on release builds. See PR 4379.
>> -  if (NOT MSVC)
>> -    list(APPEND LIBCXX_COMPILE_FLAGS -D_DEBUG)
>> -  endif()
>> -  # On Release builds cmake automatically defines NDEBUG, so we
>> -  # explicitly undefine it:
>> -  if (uppercase_CMAKE_BUILD_TYPE STREQUAL "RELEASE")
>> -    list(APPEND LIBCXX_COMPILE_FLAGS -UNDEBUG)
>> -  endif()
>> -else()
>> -  if (NOT uppercase_CMAKE_BUILD_TYPE STREQUAL "RELEASE")
>> -    list(APPEND LIBCXX_COMPILE_FLAGS -DNDEBUG)
>> -  endif()
>> -endif()
>> -# Static library
>> -if (NOT LIBCXX_ENABLE_SHARED)
>> -  list(APPEND LIBCXX_COMPILE_FLAGS -D_LIBCPP_BUILD_STATIC)
>> -endif()
>> -
>> -if (CMAKE_SIZEOF_VOID_P EQUAL 8 AND NOT WIN32)
>> -  if (LIBCXX_BUILD_32_BITS)
>> -    message(STATUS "Building 32 bits executables and libraries.")
>> -    list(APPEND LIBCXX_CXX_FLAGS "-m32")
>> -  endif()
>> -elseif(LIBCXX_BUILD_32_BITS)
>> -  message(FATAL_ERROR "LIBCXX_BUILD_32_BITS=ON is not supported on this
>> platform.")
>> -endif()
>> -# This is the _ONLY_ place where add_definitions is called.
>> -if (MSVC)
>> -  add_definitions(-D_CRT_SECURE_NO_WARNINGS)
>> -endif()
>> -
>> -# LIBCXX_ENABLE_GLOBAL_FILESYSTEM_NAMESPACE configuration
>> -if (NOT LIBCXX_ENABLE_GLOBAL_FILESYSTEM_NAMESPACE)
>> -  add_definitions(-D_LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE)
>> -endif()
>> -
>> -# LIBCXX_ENABLE_STDIN configuration
>> -if (NOT LIBCXX_ENABLE_STDIN)
>> -  add_definitions(-D_LIBCPP_HAS_NO_STDIN)
>> -endif()
>> -
>> -# LIBCXX_ENABLE_STDOUT configuration
>> -if (NOT LIBCXX_ENABLE_STDOUT)
>> -  add_definitions(-D_LIBCPP_HAS_NO_STDOUT)
>> -endif()
>> -
>> -# LIBCXX_ENABLE_THREADS configuration
>> -if (NOT LIBCXX_ENABLE_THREADS)
>> -  add_definitions(-D_LIBCPP_HAS_NO_THREADS)
>> -  if (NOT LIBCXX_ENABLE_MONOTONIC_CLOCK)
>> -    add_definitions(-D_LIBCPP_HAS_NO_MONOTONIC_CLOCK)
>> -  endif()
>> -# Ensure LIBCXX_ENABLE_MONOTONIC_CLOCK is set to ON.
>> -elseif(NOT LIBCXX_ENABLE_MONOTONIC_CLOCK)
>> -  message(FATAL_ERROR "LIBCXX_ENABLE_MONOTONIC_CLOCK can only be set to
>> OFF"
>> -                      " when LIBCXX_ENABLE_THREADS is also set to OFF.")
>> -endif()
>> -
>> -# LIBCXX_ENABLE_THREAD_UNSAFE_C_FUNCTIONS configuration
>> -if (NOT LIBCXX_ENABLE_THREAD_UNSAFE_C_FUNCTIONS)
>> -  add_definitions(-D_LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS)
>> -endif()
>> -
>> -# Configure for sanitizers. If LIBCXX_BUILT_STANDALONE then we have to do
>> -# the flag translation ourselves. Othewise LLVM's CMakeList.txt will
>> handle it.
>> -if (LIBCXX_BUILT_STANDALONE)
>> -  # NOTE: LLVM_USE_SANITIZER checks for a UNIX like system instead of
>> MSVC.
>> -  # But we don't have LLVM_ON_UNIX so checking for MSVC is the best we
>> can do.
>> -  if (LLVM_USE_SANITIZER AND NOT MSVC)
>> -    append_if(LIBCXX_CXX_FLAGS LIBCXX_HAS_FNO_OMIT_FRAME_POINTER_FLAG
>> -              "-fno-omit-frame-pointer")
>> -    if (NOT uppercase_CMAKE_BUILD_TYPE STREQUAL "DEBUG" AND
>> -        NOT uppercase_CMAKE_BUILD_TYPE STREQUAL "RELWITHDEBINFO")
>> -      append_if(LIBCXX_CXX_FLAGS LIBCXX_HAS_GLINE_TABLES_ONLY_FLAG
>> -                "-gline-tables-only")
>> -    endif()
>> -    if (LLVM_USE_SANITIZER STREQUAL "Address")
>> -      list(APPEND LIBCXX_CXX_FLAGS "-fsanitize=address")
>> -    elseif (LLVM_USE_SANITIZER MATCHES "Memory(WithOrigins)?")
>> -      list(APPEND LIBCXX_CXX_FLAGS "-fsanitize=memory")
>> -      if (LLVM_USE_SANITIZER STREQUAL "MemoryWithOrigins")
>> -        list(APPEND LIBCXX_CXX_FLAGS "-fsanitize-memory-track-origins")
>> -      endif()
>> -    elseif (LLVM_USE_SANITIZER STREQUAL "Undefined")
>> -      list(APPEND LIBCXX_CXX_FLAGS
>> -          "-fsanitize=undefined -fno-sanitize=vptr,function
>> -fno-sanitize-recover")
>> -    elseif (LLVM_USE_SANITIZER STREQUAL "Thread")
>> -      list(APPEND LIBCXX_CXX_FLAGS "-fsanitize=thread")
>> -    else()
>> -      message(WARNING "Unsupported value of LLVM_USE_SANITIZER:
>> ${LLVM_USE_SANITIZER}")
>> -    endif()
>> -  elseif(MSVC)
>> -    message(WARNING "LLVM_USE_SANITIZER is not supported with MSVC")
>> -  endif()
>> -endif()
>> -
>> -append_if(LIBCXX_CXX_FLAGS LIBCXX_TARGET_TRIPLE
>> -          "-target ${LIBCXX_TARGET_TRIPLE}")
>> -
>> -append_if(LIBCXX_CXX_FLAGS LIBCXX_SYSROOT "--sysroot ${LIBCXX_SYSROOT}")
>> -append_if(LIBCXX_CXX_FLAGS LIBCXX_GCC_TOOLCHAIN
>> -          "-gcc-toolchain ${LIBCXX_GCC_TOOLCHAIN}")
>> -
>> -if (LLVM_USE_SANITIZER AND LIBCXX_GENERATE_COVERAGE)
>> -  message(FATAL_ERROR "LLVM_USE_SANITIZER cannot be used with
>> LIBCXX_GENERATE_COVERAGE")
>> +  define_if_not(MSVC -D_DEBUG)
>>  endif()
>>
>> -string(REPLACE ";" " " LIBCXX_CXX_FLAGS "${LIBCXX_CXX_FLAGS}")
>> -set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${LIBCXX_CXX_FLAGS}")
>> +# Feature flags
>> ===============================================================
>> +define_if(MSVC -D_CRT_SECURE_NO_WARNINGS)
>> +define_if_not(LIBCXX_ENABLE_GLOBAL_FILESYSTEM_NAMESPACE
>> -D_LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE)
>> +define_if_not(LIBCXX_ENABLE_STDIN -D_LIBCPP_HAS_NO_STDIN)
>> +define_if_not(LIBCXX_ENABLE_STDOUT -D_LIBCPP_HAS_NO_STDOUT)
>> +define_if_not(LIBCXX_ENABLE_THREADS -D_LIBCPP_HAS_NO_THREADS)
>> +define_if_not(LIBCXX_ENABLE_MONOTONIC_CLOCK
>> -D_LIBCPP_HAS_NO_MONOTONIC_CLOCK)
>> +define_if_not(LIBCXX_ENABLE_THREAD_UNSAFE_C_FUNCTIONS
>> -D_LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS)
>>
>>
>>  #===============================================================================
>> -# Setup Source Code
>> +# Setup Source Code And Tests
>>
>>  #===============================================================================
>> -
>>  include_directories(include)
>>  add_subdirectory(include)
>> -
>> -# Add source code. This also contains all of the logic for deciding
>> linker flags
>> -# soname, etc...
>>  add_subdirectory(lib)
>> -
>>
>> -#===============================================================================
>> -# Setup Tests
>>
>> -#===============================================================================
>> -
>>  add_subdirectory(test)
>>
>> Added: libcxx/trunk/cmake/Modules/FindLLVM.cmake
>> URL:
>> http://llvm.org/viewvc/llvm-project/libcxx/trunk/cmake/Modules/FindLLVM.cmake?rev=243574&view=auto
>>
>> ==============================================================================
>> --- libcxx/trunk/cmake/Modules/FindLLVM.cmake (added)
>> +++ libcxx/trunk/cmake/Modules/FindLLVM.cmake Wed Jul 29 16:07:28 2015
>> @@ -0,0 +1,81 @@
>> +
>> +if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
>> +  # Rely on llvm-config.
>> +  set(CONFIG_OUTPUT)
>> +  find_program(LLVM_CONFIG "llvm-config")
>> +  if(DEFINED LLVM_PATH)
>> +    set(LLVM_INCLUDE_DIR ${LLVM_INCLUDE_DIR} CACHE PATH "Path to
>> llvm/include")
>> +    set(LLVM_PATH ${LLVM_PATH} CACHE PATH "Path to LLVM source tree")
>> +    set(LLVM_MAIN_SRC_DIR ${LLVM_PATH})
>> +    set(LLVM_CMAKE_PATH "${LLVM_PATH}/cmake/modules")
>> +  elseif(LLVM_CONFIG)
>> +    message(STATUS "Found LLVM_CONFIG as ${LLVM_CONFIG}")
>> +    set(CONFIG_COMMAND ${LLVM_CONFIG}
>> +      "--includedir"
>> +      "--prefix"
>> +      "--src-root")
>> +    execute_process(
>> +      COMMAND ${CONFIG_COMMAND}
>> +      RESULT_VARIABLE HAD_ERROR
>> +      OUTPUT_VARIABLE CONFIG_OUTPUT
>> +    )
>> +    if(NOT HAD_ERROR)
>> +      string(REGEX REPLACE
>> +        "[ \t]*[\r\n]+[ \t]*" ";"
>> +        CONFIG_OUTPUT ${CONFIG_OUTPUT})
>> +    else()
>> +      string(REPLACE ";" " " CONFIG_COMMAND_STR "${CONFIG_COMMAND}")
>> +      message(STATUS "${CONFIG_COMMAND_STR}")
>> +      message(FATAL_ERROR "llvm-config failed with status ${HAD_ERROR}")
>> +    endif()
>> +
>> +    list(GET CONFIG_OUTPUT 0 INCLUDE_DIR)
>> +    list(GET CONFIG_OUTPUT 1 LLVM_OBJ_ROOT)
>> +    list(GET CONFIG_OUTPUT 2 MAIN_SRC_DIR)
>> +
>> +    set(LLVM_INCLUDE_DIR ${INCLUDE_DIR} CACHE PATH "Path to
>> llvm/include")
>> +    set(LLVM_BINARY_DIR ${LLVM_OBJ_ROOT} CACHE PATH "Path to LLVM build
>> tree")
>> +    set(LLVM_MAIN_SRC_DIR ${MAIN_SRC_DIR} CACHE PATH "Path to LLVM
>> source tree")
>> +    set(LLVM_CMAKE_PATH "${LLVM_BINARY_DIR}/share/llvm/cmake")
>> +  else()
>> +    message(FATAL_ERROR "llvm-config not found and LLVM_MAIN_SRC_DIR not
>> defined. "
>> +                        "Reconfigure with
>> -DLLVM_CONFIG=path/to/llvm-config "
>> +                        "or -DLLVM_PATH=path/to/llvm-source-root.")
>> +  endif()
>> +
>> +  if (NOT EXISTS ${LLVM_MAIN_SRC_DIR})
>> +    message(FATAL_ERROR "Not found: ${LLVM_MAIN_SRC_DIR}")
>> +  endif()
>> +
>> +  if(NOT EXISTS ${LLVM_CMAKE_PATH})
>> +    message(FATAL_ERROR "Not found: ${LLVM_CMAKE_PATH}")
>> +  endif()
>> +
>> +  list(APPEND CMAKE_MODULE_PATH "${LLVM_CMAKE_PATH}")
>> +  list(APPEND CMAKE_MODULE_PATH "${LLVM_MAIN_SRC_DIR}/cmake/modules")
>> +
>> +
>> +  if(LLVM_LIT)
>> +    # Define the default arguments to use with 'lit', and an option for
>> the user
>> +    # to override.
>> +    set(LIT_ARGS_DEFAULT "-sv --show-xfail --show-unsupported")
>> +    if (MSVC OR XCODE)
>> +      set(LIT_ARGS_DEFAULT "${LIT_ARGS_DEFAULT} --no-progress-bar")
>> +    endif()
>> +    set(LLVM_LIT_ARGS "${LIT_ARGS_DEFAULT}" CACHE STRING "Default
>> options for lit")
>> +
>> +    # On Win32 hosts, provide an option to specify the path to the
>> GnuWin32 tools.
>> +    if( WIN32 AND NOT CYGWIN )
>> +      set(LLVM_LIT_TOOLS_DIR "" CACHE PATH "Path to GnuWin32 tools")
>> +    endif()
>> +  else()
>> +    set(LLVM_INCLUDE_TESTS OFF)
>> +  endif()
>> +
>> +  include(AddLLVM) # Include the LLVM CMake functions.
>> +  include(HandleLLVMOptions)
>> +  set(LIBCXX_BUILT_STANDALONE 1)
>> +else()
>> +  set(LLVM_MAIN_SRC_DIR "${CMAKE_SOURCE_DIR}" CACHE PATH "Path to LLVM
>> source tree")
>> +  set(LLVM_LIT "${CMAKE_SOURCE_DIR}/utils/lit/lit.py")
>> +endif()
>>
>> Modified: libcxx/trunk/cmake/Modules/HandleLibCXXABI.cmake
>> URL:
>> http://llvm.org/viewvc/llvm-project/libcxx/trunk/cmake/Modules/HandleLibCXXABI.cmake?rev=243574&r1=243573&r2=243574&view=diff
>>
>> ==============================================================================
>> --- libcxx/trunk/cmake/Modules/HandleLibCXXABI.cmake (original)
>> +++ libcxx/trunk/cmake/Modules/HandleLibCXXABI.cmake Wed Jul 29 16:07:28
>> 2015
>> @@ -58,6 +58,21 @@ macro(setup_abi_lib abidefines abilib ab
>>
>>  endmacro()
>>
>> +# Setup the default options if LIBCXX_CXX_ABI is not specified.
>> +if (NOT LIBCXX_CXX_ABI)
>> +  if (NOT DEFINED LIBCXX_BUILT_STANDALONE AND
>> +      IS_DIRECTORY "${CMAKE_SOURCE_DIR}/projects/libcxxabi")
>> +    set(LIBCXX_CXX_ABI_LIBNAME "libcxxabi")
>> +    set(LIBCXX_CXX_ABI_INCLUDE_PATHS
>> "${CMAKE_SOURCE_DIR}/projects/libcxxabi/include")
>> +    set(LIBCXX_CXX_ABI_INTREE 1)
>> +  else ()
>> +    set(LIBCXX_CXX_ABI_LIBNAME "none")
>> +  endif ()
>> +else ()
>> +  set(LIBCXX_CXX_ABI_LIBNAME "${LIBCXX_CXX_ABI}")
>> +endif ()
>> +
>> +# Configure based on the selected ABI library.
>>  if ("${LIBCXX_CXX_ABI_LIBNAME}" STREQUAL "libstdc++" OR
>>      "${LIBCXX_CXX_ABI_LIBNAME}" STREQUAL "libsupc++")
>>    set(_LIBSUPCXX_INCLUDE_FILES
>>
>> Added: libcxx/trunk/cmake/Modules/HandleLibcxxFlags.cmake
>> URL:
>> http://llvm.org/viewvc/llvm-project/libcxx/trunk/cmake/Modules/HandleLibcxxFlags.cmake?rev=243574&view=auto
>>
>> ==============================================================================
>> --- libcxx/trunk/cmake/Modules/HandleLibcxxFlags.cmake (added)
>> +++ libcxx/trunk/cmake/Modules/HandleLibcxxFlags.cmake Wed Jul 29
>> 16:07:28 2015
>> @@ -0,0 +1,147 @@
>> +# HandleLibcxxFlags - A set of macros used to setup the flags used to
>> compile
>> +# and link libc++. These macros add flags to the following CMake
>> variables.
>> +# - LIBCXX_COMPILE_FLAGS: flags used to compile libc++
>> +# - LIBCXX_LINK_FLAGS: flags used to link libc++
>> +# - LIBCXX_LIBRARIES: libraries to link libc++ to.
>> +
>> +include(CheckCXXCompilerFlag)
>> +
>> +unset(add_flag_if_supported)
>> +
>> +# Mangle the name of a compiler flag into a valid CMake identifier.
>> +# Ex: --std=c++11 -> STD_EQ_CXX11
>> +macro(mangle_name str output)
>> +  string(STRIP "${str}" strippedStr)
>> +  string(REGEX REPLACE "^/" "" strippedStr "${strippedStr}")
>> +  string(REGEX REPLACE "^-+" "" strippedStr "${strippedStr}")
>> +  string(REGEX REPLACE "-+$" "" strippedStr "${strippedStr}")
>> +  string(REPLACE "-" "_" strippedStr "${strippedStr}")
>> +  string(REPLACE "=" "_EQ_" strippedStr "${strippedStr}")
>> +  string(REPLACE "+" "X" strippedStr "${strippedStr}")
>> +  string(TOUPPER "${strippedStr}" ${output})
>> +endmacro()
>> +
>> +# Remove a list of flags from all CMake variables that affect compile
>> flags.
>> +# This can be used to remove unwanted flags specified on the command line
>> +# or added in other parts of LLVM's cmake configuration.
>> +macro(remove_flags)
>> +  foreach(var ${ARGN})
>> +    string(REPLACE "${var}" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
>> +    string(REPLACE "${var}" "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
>> +    string(REPLACE "${var}" "" CMAKE_EXE_LINKER_FLAGS
>> "${CMAKE_EXE_LINKER_FLAGS}")
>> +    string(REPLACE "${var}" "" CMAKE_SHARED_LINKER_FLAGS
>> "${CMAKE_SHARED_LINKER_FLAGS}")
>> +    string(REPLACE "${var}" "" CMAKE_SHARED_MODULE_FLAGS
>> "${CMAKE_SHARED_MODULE_FLAGS}")
>> +    remove_definitions(${var})
>> +  endforeach()
>> +endmacro(remove_flags)
>> +
>> +# Add a macro definition if condition is true.
>> +macro(define_if condition def)
>> +  if (${condition})
>> +    add_definitions(${def})
>> +  endif()
>> +endmacro()
>> +
>> +# Add a macro definition if condition is not true.
>> +macro(define_if_not condition def)
>> +  if (NOT ${condition})
>> +    add_definitions(${def})
>> +  endif()
>> +endmacro()
>> +
>> +# Add a specified list of flags to both 'LIBCXX_COMPILE_FLAGS' and
>> +# 'LIBCXX_LINK_FLAGS'.
>> +macro(add_flags)
>> +  foreach(value ${ARGN})
>> +    list(APPEND LIBCXX_COMPILE_FLAGS ${value})
>> +    list(APPEND LIBCXX_LINK_FLAGS ${value})
>> +  endforeach()
>> +endmacro()
>> +
>> +# If the specified 'condition' is true then add a list of flags to both
>> +# 'LIBCXX_COMPILE_FLAGS' and 'LIBCXX_LINK_FLAGS'.
>> +macro(add_flags_if condition)
>> +  if (${condition})
>> +    add_flags(${ARGN})
>> +  endif()
>> +endmacro()
>> +
>> +# Add each flag in the list to LIBCXX_COMPILE_FLAGS and LIBCXX_LINK_FLAGS
>> +# if that flag is supported by the current compiler.
>> +macro(add_flags_if_supported)
>> +  foreach(flag ${ARGN})
>> +      mangle_name("${flag}" flagname)
>> +      check_cxx_compiler_flag("${flag}"
>> "LIBCXX_SUPPORTS_${flagname}_FLAG")
>> +      add_flags_if(LIBCXX_SUPPORTS_${flagname}_FLAG ${flag})
>> +  endforeach()
>> +endmacro()
>> +
>> +# Add a list of flags to 'LIBCXX_COMPILE_FLAGS'.
>> +macro(add_compile_flags)
>> +  foreach(f ${ARGN})
>> +    list(APPEND LIBCXX_COMPILE_FLAGS ${f})
>> +  endforeach()
>> +endmacro()
>> +
>> +# If 'condition' is true then add the specified list of flags to
>> +# 'LIBCXX_COMPILE_FLAGS'
>> +macro(add_compile_flags_if condition)
>> +  if (${condition})
>> +    add_compile_flags(${ARGN})
>> +  endif()
>> +endmacro()
>> +
>> +# For each specified flag, add that flag to 'LIBCXX_COMPILE_FLAGS' if the
>> +# flag is supported by the C++ compiler.
>> +macro(add_compile_flags_if_supported)
>> +  foreach(flag ${ARGN})
>> +      mangle_name("${flag}" flagname)
>> +      check_cxx_compiler_flag("-Werror ${flag}"
>> "LIBCXX_SUPPORTS_${flagname}_FLAG")
>> +      add_compile_flags_if(LIBCXX_SUPPORTS_${flagname}_FLAG ${flag})
>> +  endforeach()
>> +endmacro()
>> +
>> +# Add a list of flags to 'LIBCXX_LINK_FLAGS'.
>> +macro(add_link_flags)
>> +  foreach(f ${ARGN})
>> +    list(APPEND LIBCXX_LINK_FLAGS ${f})
>> +  endforeach()
>> +endmacro()
>> +
>> +# If 'condition' is true then add the specified list of flags to
>> +# 'LIBCXX_LINK_FLAGS'
>> +macro(add_link_flags_if condition)
>> +  if (${condition})
>> +    add_link_flags(${ARGN})
>> +  endif()
>> +endmacro()
>> +
>> +# For each specified flag, add that flag to 'LIBCXX_LINK_FLAGS' if the
>> +# flag is supported by the C++ compiler.
>> +macro(add_link_flags_if_supported)
>> +  foreach(flag ${ARGN})
>> +    mangle_name("${flag}" flagname)
>> +    check_cxx_compiler_flag("${flag}" "LIBCXX_SUPPORTS_${flagname}_FLAG")
>> +    add_link_flags_if(LIBCXX_SUPPORTS_${flagname}_FLAG ${flag})
>> +  endforeach()
>> +endmacro()
>> +
>> +# Add a list of libraries or link flags to 'LIBCXX_LIBRARIES'.
>> +macro(add_library_flags)
>> +  foreach(lib ${ARGN})
>> +    list(APPEND LIBCXX_LIBRARIES ${lib})
>> +  endforeach()
>> +endmacro()
>> +
>> +# if 'condition' is true then add the specified list of libraries and
>> flags
>> +# to 'LIBCXX_LIBRARIES'.
>> +macro(add_library_flags_if condition)
>> +  if(${condition})
>> +    add_library_flags(${ARGN})
>> +  endif()
>> +endmacro()
>> +
>> +# Turn a comma separated CMake list into a space separated string.
>> +macro(split_list listname)
>> +  string(REPLACE ";" " " ${listname} "${${listname}}")
>> +endmacro()
>>
>> Modified: libcxx/trunk/cmake/config-ix.cmake
>> URL:
>> http://llvm.org/viewvc/llvm-project/libcxx/trunk/cmake/config-ix.cmake?rev=243574&r1=243573&r2=243574&view=diff
>>
>> ==============================================================================
>> --- libcxx/trunk/cmake/config-ix.cmake (original)
>> +++ libcxx/trunk/cmake/config-ix.cmake Wed Jul 29 16:07:28 2015
>> @@ -2,23 +2,7 @@ include(CheckLibraryExists)
>>  include(CheckCXXCompilerFlag)
>>
>>  # Check compiler flags
>> -check_cxx_compiler_flag(-std=c++11              LIBCXX_HAS_STDCXX11_FLAG)
>> -check_cxx_compiler_flag(-std=c++1y              LIBCXX_HAS_STDCXX1Y_FLAG)
>> -check_cxx_compiler_flag(-fPIC                   LIBCXX_HAS_FPIC_FLAG)
>> -check_cxx_compiler_flag(-fno-omit-frame-pointer
>> LIBCXX_HAS_FNO_OMIT_FRAME_POINTER_FLAG)
>> -check_cxx_compiler_flag(-nodefaultlibs
>> LIBCXX_HAS_NODEFAULTLIBS_FLAG)
>> -check_cxx_compiler_flag(-nostdinc++
>>  LIBCXX_HAS_NOSTDINCXX_FLAG)
>> -check_cxx_compiler_flag(-Wall                   LIBCXX_HAS_WALL_FLAG)
>> -check_cxx_compiler_flag(-W                      LIBCXX_HAS_W_FLAG)
>> -check_cxx_compiler_flag(-Wno-unused-parameter
>>  LIBCXX_HAS_WNO_UNUSED_PARAMETER_FLAG)
>> -check_cxx_compiler_flag(-Wwrite-strings
>>  LIBCXX_HAS_WWRITE_STRINGS_FLAG)
>> -check_cxx_compiler_flag(-Wno-long-long
>> LIBCXX_HAS_WNO_LONG_LONG_FLAG)
>> -check_cxx_compiler_flag(-pedantic               LIBCXX_HAS_PEDANTIC_FLAG)
>> -check_cxx_compiler_flag(-Werror                 LIBCXX_HAS_WERROR_FLAG)
>> -check_cxx_compiler_flag(-Wno-error
>> LIBCXX_HAS_WNO_ERROR_FLAG)
>> -check_cxx_compiler_flag(-fno-exceptions
>>  LIBCXX_HAS_FNO_EXCEPTIONS_FLAG)
>> -check_cxx_compiler_flag(-fno-rtti               LIBCXX_HAS_FNO_RTTI_FLAG)
>> -check_cxx_compiler_flag(-gline-tables-only
>> LIBCXX_HAS_GLINE_TABLES_ONLY_FLAG)
>> +
>>  check_cxx_compiler_flag(/WX                     LIBCXX_HAS_WX_FLAG)
>>  check_cxx_compiler_flag(/WX-                    LIBCXX_HAS_NO_WX_FLAG)
>>  check_cxx_compiler_flag(/EHsc                   LIBCXX_HAS_EHSC_FLAG)
>> @@ -26,6 +10,7 @@ check_cxx_compiler_flag(/EHs-
>>  check_cxx_compiler_flag(/EHa-                   LIBCXX_HAS_NO_EHA_FLAG)
>>  check_cxx_compiler_flag(/GR-                    LIBCXX_HAS_NO_GR_FLAG)
>>
>> +
>>  # Check libraries
>>  check_library_exists(pthread pthread_create "" LIBCXX_HAS_PTHREAD_LIB)
>>  check_library_exists(c printf "" LIBCXX_HAS_C_LIB)
>>
>> Modified: libcxx/trunk/lib/CMakeLists.txt
>> URL:
>> http://llvm.org/viewvc/llvm-project/libcxx/trunk/lib/CMakeLists.txt?rev=243574&r1=243573&r2=243574&view=diff
>>
>> ==============================================================================
>> --- libcxx/trunk/lib/CMakeLists.txt (original)
>> +++ libcxx/trunk/lib/CMakeLists.txt Wed Jul 29 16:07:28 2015
>> @@ -25,48 +25,23 @@ if (MSVC_IDE OR XCODE)
>>  endif()
>>
>>  if (LIBCXX_ENABLE_SHARED)
>> -  add_library(cxx SHARED
>> -    ${LIBCXX_SOURCES}
>> -    ${LIBCXX_HEADERS}
>> -    )
>> +  add_library(cxx SHARED ${LIBCXX_SOURCES} ${LIBCXX_HEADERS})
>>  else()
>> -  add_library(cxx STATIC
>> -    ${LIBCXX_SOURCES}
>> -    ${LIBCXX_HEADERS}
>> -    )
>> -endif()
>> -
>> -#if LIBCXX_CXX_ABI_LIBRARY_PATH is defined we want to add it to the
>> search path.
>> -if (DEFINED LIBCXX_CXX_ABI_LIBRARY_PATH)
>> -  target_link_libraries(cxx "-L${LIBCXX_CXX_ABI_LIBRARY_PATH}")
>> +  add_library(cxx STATIC ${LIBCXX_SOURCES} ${LIBCXX_HEADERS})
>>  endif()
>>
>>  if (DEFINED LIBCXX_CXX_ABI_DEPS)
>>    add_dependencies(cxx LIBCXX_CXX_ABI_DEPS)
>>  endif()
>>
>> -set(libraries "")
>> -if (LIBCXX_ENABLE_STATIC_ABI_LIBRARY)
>> -    # TODO(ericwf): Remove these GNU specific linker flags and let CMake
>> do the
>> -    # configuration. This will be more portable.
>> -    list(APPEND libraries "-Wl,--whole-archive" "-Wl,-Bstatic")
>> -    list(APPEND libraries "${LIBCXX_CXX_ABI_LIBRARY}")
>> -    list(APPEND libraries "-Wl,-Bdynamic" "-Wl,--no-whole-archive")
>> -else()
>> -    list(APPEND libraries "${LIBCXX_CXX_ABI_LIBRARY}")
>> -endif()
>> +#if LIBCXX_CXX_ABI_LIBRARY_PATH is defined we want to add it to the
>> search path.
>> +add_link_flags_if(LIBCXX_CXX_ABI_LIBRARY_PATH
>> "-L${LIBCXX_CXX_ABI_LIBRARY_PATH}")
>>
>> -# Generate library list.
>> -append_if(libraries LIBCXX_HAS_PTHREAD_LIB pthread)
>> -append_if(libraries LIBCXX_HAS_C_LIB c)
>> -append_if(libraries LIBCXX_HAS_M_LIB m)
>> -append_if(libraries LIBCXX_HAS_RT_LIB rt)
>> -append_if(libraries LIBCXX_HAS_GCC_S_LIB gcc_s)
>> +add_library_flags_if(LIBCXX_COVERAGE_LIBRARY
>> "${LIBCXX_COVERAGE_LIBRARY}")
>>
>> -if (LIBCXX_COVERAGE_LIBRARY)
>> -  target_link_libraries(cxx ${LIBCXX_COVERAGE_LIBRARY})
>> -endif()
>> -target_link_libraries(cxx ${libraries})
>> +add_library_flags_if(LIBCXX_ENABLE_STATIC_ABI_LIBRARY
>> "-Wl,--whole-archive" "-Wl,-Bstatic")
>> +add_library_flags("${LIBCXX_CXX_ABI_LIBRARY}")
>> +add_library_flags_if(LIBCXX_ENABLE_STATIC_ABI_LIBRARY "-Wl,-Bdynamic"
>> "-Wl,--no-whole-archive")
>>
>>  if (APPLE AND LLVM_USE_SANITIZER)
>>    if ("${LLVM_USE_SANITIZER}" STREQUAL "Address")
>> @@ -89,15 +64,21 @@ if (APPLE AND LLVM_USE_SANITIZER)
>>      set(LIBCXX_SANITIZER_LIBRARY "${LIBDIR}/${LIBFILE}")
>>      set(LIBCXX_SANITIZER_LIBRARY "${LIBCXX_SANITIZER_LIBRARY}"
>> PARENT_SCOPE)
>>      message(STATUS "Manually linking compiler-rt library:
>> ${LIBCXX_SANITIZER_LIBRARY}")
>> -    target_link_libraries(cxx "${LIBCXX_SANITIZER_LIBRARY}")
>> -    target_link_libraries(cxx "-Wl,-rpath,${LIBDIR}")
>> +    add_library_flags("${LIBCXX_SANITIZER_LIBRARY}")
>> +    add_link_flags("-Wl,-rpath,${LIBDIR}")
>>    endif()
>>  endif()
>>
>> +# Generate library list.
>> +add_library_flags_if(LIBCXX_HAS_PTHREAD_LIB pthread)
>> +add_library_flags_if(LIBCXX_HAS_C_LIB c)
>> +add_library_flags_if(LIBCXX_HAS_M_LIB m)
>> +add_library_flags_if(LIBCXX_HAS_RT_LIB rt)
>> +add_library_flags_if(LIBCXX_HAS_GCC_S_LIB gcc_s)
>>
>>  # Setup flags.
>> -append_if(LIBCXX_COMPILE_FLAGS LIBCXX_HAS_FPIC_FLAG -fPIC)
>> -append_if(LIBCXX_LINK_FLAGS LIBCXX_HAS_NODEFAULTLIBS_FLAG -nodefaultlibs)
>> +add_flags_if_supported(-fPIC)
>> +add_link_flags_if_supported(-nodefaultlibs)
>>
>>  if ( APPLE AND (LIBCXX_CXX_ABI_LIBNAME STREQUAL "libcxxabi" OR
>>                  LIBCXX_CXX_ABI_LIBNAME STREQUAL "none"))
>> @@ -106,8 +87,8 @@ if ( APPLE AND (LIBCXX_CXX_ABI_LIBNAME S
>>    endif()
>>
>>    if ( CMAKE_OSX_DEPLOYMENT_TARGET STREQUAL "10.6" )
>> -    list(APPEND LIBCXX_COMPILE_FLAGS "-U__STRICT_ANSI__")
>> -    list(APPEND LIBCXX_LINK_FLAGS
>> +    add_definitions(-D__STRICT_ANSI__)
>> +    add_link_flags(
>>        "-compatibility_version 1"
>>        "-current_version 1"
>>        "-install_name /usr/lib/libc++.1.dylib"
>> @@ -129,7 +110,7 @@ if ( APPLE AND (LIBCXX_CXX_ABI_LIBNAME S
>>        set (OSX_RE_EXPORT_LINE "/usr/lib/libc++abi.dylib
>> -Wl,-reexported_symbols_list,${CMAKE_CURRENT_SOURCE_DIR}/libc++abi${LIBCXX_LIBCPPABI_VERSION}.exp")
>>      endif()
>>
>> -    list(APPEND LIBCXX_LINK_FLAGS
>> +    add_link_flags(
>>        "-compatibility_version 1"
>>        "-install_name /usr/lib/libc++.1.dylib"
>>
>>  "-Wl,-unexported_symbols_list,${CMAKE_CURRENT_SOURCE_DIR}/libc++unexp.exp"
>> @@ -139,8 +120,9 @@ if ( APPLE AND (LIBCXX_CXX_ABI_LIBNAME S
>>    endif()
>>  endif()
>>
>> -string(REPLACE ";" " " LIBCXX_COMPILE_FLAGS "${LIBCXX_COMPILE_FLAGS}")
>> -string(REPLACE ";" " " LIBCXX_LINK_FLAGS "${LIBCXX_LINK_FLAGS}")
>> +target_link_libraries(cxx ${LIBCXX_LIBRARIES})
>> +split_list(LIBCXX_COMPILE_FLAGS)
>> +split_list(LIBCXX_LINK_FLAGS)
>>
>>  set_target_properties(cxx
>>    PROPERTIES
>>
>> Modified: libcxx/trunk/test/CMakeLists.txt
>> URL:
>> http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/CMakeLists.txt?rev=243574&r1=243573&r2=243574&view=diff
>>
>> ==============================================================================
>> --- libcxx/trunk/test/CMakeLists.txt (original)
>> +++ libcxx/trunk/test/CMakeLists.txt Wed Jul 29 16:07:28 2015
>> @@ -6,84 +6,47 @@ macro(pythonize_bool var)
>>    endif()
>>  endmacro()
>>
>> -set(LIT_EXECUTABLE "" CACHE FILEPATH "Path to LLVM's llvm-lit.")
>> +set(LIBCXX_LIT_VARIANT "libcxx" CACHE STRING
>> +    "Configuration variant to use for LIT.")
>>
>> -if(LIBCXX_BUILT_STANDALONE)
>> -  # Make sure we can use the console pool for recent cmake and ninja >
>> 1.5
>> -  if(CMAKE_VERSION VERSION_LESS 3.1.20141117)
>> -    set(cmake_3_2_USES_TERMINAL)
>> -  else()
>> -    set(cmake_3_2_USES_TERMINAL USES_TERMINAL)
>> -  endif()
>> -else()
>> -  include(FindPythonInterp)
>> -  if(PYTHONINTERP_FOUND)
>> -    set(LIT_EXECUTABLE
>> -        ${PYTHON_EXECUTABLE} ${CMAKE_SOURCE_DIR}/utils/lit/lit.py)
>> -  else()
>> -    message(WARNING "Could not find Python, cannot set LIT_EXECUTABLE.")
>> -  endif()
>> +pythonize_bool(LIBCXX_ENABLE_EXCEPTIONS)
>> +pythonize_bool(LIBCXX_ENABLE_RTTI)
>> +pythonize_bool(LIBCXX_ENABLE_SHARED)
>> +pythonize_bool(LIBCXX_BUILD_32_BITS)
>> +pythonize_bool(LIBCXX_ENABLE_GLOBAL_FILESYSTEM_NAMESPACE)
>> +pythonize_bool(LIBCXX_ENABLE_STDIN)
>> +pythonize_bool(LIBCXX_ENABLE_STDOUT)
>> +pythonize_bool(LIBCXX_ENABLE_THREADS)
>> +pythonize_bool(LIBCXX_ENABLE_THREAD_UNSAFE_C_FUNCTIONS)
>> +pythonize_bool(LIBCXX_ENABLE_MONOTONIC_CLOCK)
>> +pythonize_bool(LIBCXX_GENERATE_COVERAGE)
>> +pythonize_bool(LIBCXXABI_USE_LLVM_UNWINDER)
>> +
>> +# The tests shouldn't link to any ABI library when it has been linked
>> into
>> +# libc++ statically.
>> +if (LIBCXX_ENABLE_STATIC_ABI_LIBRARY)
>> +  set(LIBCXX_CXX_ABI_LIBNAME "none")
>>  endif()
>> -
>> -if (LIT_EXECUTABLE)
>> -  set(LIT_ARGS_DEFAULT "-sv --show-unsupported --show-xfail")
>> -  if (MSVC OR XCODE)
>> -    set(LIT_ARGS_DEFAULT "${LIT_ARGS_DEFAULT} --no-progress-bar")
>> -  endif()
>> -  set(LLVM_LIT_ARGS "${LIT_ARGS_DEFAULT}"
>> -      CACHE STRING "Default options for lit")
>> -  set(LIT_ARGS "${LLVM_LIT_ARGS}")
>> -  separate_arguments(LIT_ARGS)
>> -
>> -  set(LIBCXX_LIT_VARIANT "libcxx" CACHE STRING
>> -      "Configuration variant to use for LIT.")
>> -
>> -  pythonize_bool(LIBCXX_ENABLE_EXCEPTIONS)
>> -  pythonize_bool(LIBCXX_ENABLE_RTTI)
>> -  pythonize_bool(LIBCXX_ENABLE_SHARED)
>> -  pythonize_bool(LIBCXX_BUILD_32_BITS)
>> -  pythonize_bool(LIBCXX_ENABLE_GLOBAL_FILESYSTEM_NAMESPACE)
>> -  pythonize_bool(LIBCXX_ENABLE_STDIN)
>> -  pythonize_bool(LIBCXX_ENABLE_STDOUT)
>> -  pythonize_bool(LIBCXX_ENABLE_THREADS)
>> -  pythonize_bool(LIBCXX_ENABLE_THREAD_UNSAFE_C_FUNCTIONS)
>> -  pythonize_bool(LIBCXX_ENABLE_MONOTONIC_CLOCK)
>> -  pythonize_bool(LIBCXX_GENERATE_COVERAGE)
>> -  pythonize_bool(LIBCXXABI_USE_LLVM_UNWINDER)
>> -
>> -  # The tests shouldn't link to any ABI library when it has been linked
>> into
>> -  # libc++ statically.
>> -  if (LIBCXX_ENABLE_STATIC_ABI_LIBRARY)
>> -    set(LIBCXX_CXX_ABI_LIBNAME "none")
>> -  endif()
>> -  set(LIBCXX_TARGET_INFO "libcxx.test.target_info.LocalTI" CACHE STRING
>> -      "TargetInfo to use when setting up test environment.")
>> -  set(LIBCXX_EXECUTOR "None" CACHE STRING
>> -      "Executor to use when running tests.")
>> -
>> -  set(AUTO_GEN_COMMENT "## Autogenerated by libcxx configuration.\n# Do
>> not edit!")
>> -
>> -  configure_file(
>> -    ${CMAKE_CURRENT_SOURCE_DIR}/lit.site.cfg.in
>> -    ${CMAKE_CURRENT_BINARY_DIR}/lit.site.cfg
>> -    @ONLY)
>> -
>> -  add_custom_target(check-libcxx
>> -    COMMAND ${LIT_EXECUTABLE}
>> -            ${LIT_ARGS}
>> -            ${CMAKE_CURRENT_BINARY_DIR}
>> -    DEPENDS cxx
>> -    COMMENT "Running libcxx tests"
>> -    ${cmake_3_2_USES_TERMINAL})
>> -
>> -  if (LIBCXX_GENERATE_COVERAGE)
>> -    include(CodeCoverage)
>> -    set(output_dir "${CMAKE_CURRENT_BINARY_DIR}/coverage")
>> -    set(capture_dirs
>> "${LIBCXX_LIB_CMAKEFILES_DIR}/cxx.dir/;${CMAKE_CURRENT_BINARY_DIR}")
>> -    set(extract_dirs
>> "${LIBCXX_SOURCE_DIR}/include;${LIBCXX_SOURCE_DIR}/src")
>> -    setup_lcov_test_target_coverage("cxx" "${output_dir}"
>> "${capture_dirs}" "${extract_dirs}")
>> -  endif()
>> -else()
>> -  message(WARNING
>> -          "LIT_EXECUTABLE not set, no check-libcxx target will be
>> available!")
>> +set(LIBCXX_TARGET_INFO "libcxx.test.target_info.LocalTI" CACHE STRING
>> +    "TargetInfo to use when setting up test environment.")
>> +set(LIBCXX_EXECUTOR "None" CACHE STRING
>> +    "Executor to use when running tests.")
>> +
>> +set(AUTO_GEN_COMMENT "## Autogenerated by libcxx configuration.\n# Do
>> not edit!")
>> +
>> +configure_file(
>> +  ${CMAKE_CURRENT_SOURCE_DIR}/lit.site.cfg.in
>> +  ${CMAKE_CURRENT_BINARY_DIR}/lit.site.cfg
>> +  @ONLY)
>> +
>> +add_lit_testsuite(check-libcxx "Running libcxx tests"
>> +  ${CMAKE_CURRENT_BINARY_DIR}
>> +  DEPENDS cxx)
>> +
>> +if (LIBCXX_GENERATE_COVERAGE)
>> +  include(CodeCoverage)
>> +  set(output_dir "${CMAKE_CURRENT_BINARY_DIR}/coverage")
>> +  set(capture_dirs
>> "${LIBCXX_LIB_CMAKEFILES_DIR}/cxx.dir/;${CMAKE_CURRENT_BINARY_DIR}")
>> +  set(extract_dirs
>> "${LIBCXX_SOURCE_DIR}/include;${LIBCXX_SOURCE_DIR}/src")
>> +  setup_lcov_test_target_coverage("cxx" "${output_dir}"
>> "${capture_dirs}" "${extract_dirs}")
>>  endif()
>>
>> Modified: libcxx/trunk/test/lit.site.cfg.in
>> URL:
>> http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/lit.site.cfg.in?rev=243574&r1=243573&r2=243574&view=diff
>>
>> ==============================================================================
>> --- libcxx/trunk/test/lit.site.cfg.in (original)
>> +++ libcxx/trunk/test/lit.site.cfg.in Wed Jul 29 16:07:28 2015
>> @@ -1,6 +1,5 @@
>>  @AUTO_GEN_COMMENT@
>>  config.cxx_under_test           = "@LIBCXX_COMPILER@"
>> -config.std                      = "@LIBCXX_STD_VERSION@"
>>  config.libcxx_src_root          = "@LIBCXX_SOURCE_DIR@"
>>  config.libcxx_obj_root          = "@LIBCXX_BINARY_DIR@"
>>  config.cxx_library_root         = "@LIBCXX_LIBRARY_DIR@"
>>
>> Modified: libcxx/trunk/www/index.html
>> URL:
>> http://llvm.org/viewvc/llvm-project/libcxx/trunk/www/index.html?rev=243574&r1=243573&r2=243574&view=diff
>>
>> ==============================================================================
>> --- libcxx/trunk/www/index.html (original)
>> +++ libcxx/trunk/www/index.html Wed Jul 29 16:07:28 2015
>> @@ -184,26 +184,30 @@
>>
>>    <p>In-tree build:</p>
>>    <ul>
>> +    <li><code>cd where-you-want-to-live</code></li>
>>      <li>Check out libcxx and <a href="http://libcxxabi.llvm.org/
>> ">libcxxabi</a>
>>        into llvm/projects</li>
>> -    <li><code>cd llvm</code></li>
>> +    <li><code>cd where-you-want-to-build</code></li>
>>      <li><code>mkdir build && cd build</code></li>
>> -    <li><code>cmake .. # Linux may require -DCMAKE_C_COMPILER=clang
>> +    <li><code>cmake path/to/llvm # Linux may require
>> -DCMAKE_C_COMPILER=clang
>>          -DCMAKE_CXX_COMPILER=clang++</code></li>
>>      <li><code>make cxx</code></li>
>>    </ul>
>>
>> -  <p>Out-of-tree build:</p>
>> +  <p>Out-of-tree buildc:</p>
>>    <ul>
>> -    <li>Check out libcxx</li>
>> +    <li><code>cd where-you-want-to-live</code></li>
>> +    <li>Check out libcxx and llvm</li>
>>      <li>If not on a Mac, also check out
>>        <a href="http://libcxxabi.llvm.org/">libcxxabi</a></li>
>> -    <li><code>cd libcxx</code></li>
>> +    <li><code>cd where-you-want-to-build</code></li>
>>      <li><code>mkdir build && cd build</code></li>
>> -    <li><code>cmake -DLIBCXX_CXX_ABI=libcxxabi
>> +    <li><code>cmake -DLLVM_PATH=path/to/llvm
>> +        -DLIBCXX_CXX_ABI=libcxxabi
>>          -DLIBCXX_CXX_ABI_INCLUDE_PATHS=path/to/libcxxabi/include
>> -        -DLIT_EXECUTABLE=path/to/llvm/utils/lit/lit.py .. # Linux may
>> require
>> -        -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++</code></li>
>> +        -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++
>> +        path/to/libcxx
>> +    </code></li>
>>      <li><code>make</code></li>
>>    </ul>
>>
>>
>>
>> _______________________________________________
>> cfe-commits mailing list
>> cfe-commits at cs.uiuc.edu
>> http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits
>>
>
>
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