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

Kostya Serebryany kcc at google.com
Wed Jul 29 14:59:45 PDT 2015


Eric,
If there is no quick fix, will you be able to revert this, please?

On Wed, Jul 29, 2015 at 2:56 PM, Evgenii Stepanov <eugeni.stepanov at gmail.com
> wrote:

> And the log says:
>
> CMake Error at cmake/Modules/FindLLVM.cmake:41 (message):
>   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.
> Call Stack (most recent call first):
>   CMakeLists.txt:37 (include)
>
> On Wed, Jul 29, 2015 at 2:49 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
> >
> >
> >
> > _______________________________________________
> > cfe-commits mailing list
> > cfe-commits at cs.uiuc.edu
> > http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits
> >
>
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