[CMake] Add support for selecting which c++ abi library to use.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@169036 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/CMakeLists.txt b/CMakeLists.txt
index ca8ad57..0f7941c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -39,6 +39,11 @@
option(LIBCXX_ENABLE_CXX0X "Enable -std=c++0x and use of c++0x language features if the compiler supports it." ON)
option(LIBCXX_ENABLE_SHARED "Build libc++ as a shared library." ON)
+set(CXXABIS none libcxxabi libcxxrt libsupc++)
+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})
+
#===============================================================================
# Configure System
#===============================================================================
@@ -58,6 +63,54 @@
)
set(LIBCXX_TARGET_TRIPLE ${LIBCXX_TARGET_TRIPLE} CACHE STRING "Target triple.")
+if (${LIBCXX_CXX_ABI} STREQUAL "libsupc++")
+ set(LIBCXX_LIBSUPCXX_INCLUDE_PATHS "" CACHE STRINGS
+ "Paths to libsupc++ include directories. Separate by system separator")
+ set(LIBCXX_CXX_ABI_LIBRARIES stdc++)
+ set(LIBCXX_LIBSUPCXX_FILES
+ cxxabi.h
+ bits/c++config.h
+ bits/os_defines.h
+ bits/cpu_defines.h
+ bits/cxxabi_tweaks.h
+ bits/cxxabi_forced.h
+ )
+ set(LIBCXX_LIBSUPCXX_FILE_PATHS)
+ foreach(path ${LIBCXX_LIBSUPCXX_FILES})
+ set(found FALSE)
+ foreach(incpath ${LIBCXX_LIBSUPCXX_INCLUDE_PATHS})
+ if (EXISTS "${incpath}/${path}")
+ set(found TRUE)
+ get_filename_component(dstdir ${path} PATH)
+ get_filename_component(file ${path} NAME)
+ add_custom_command(
+ OUTPUT "${CMAKE_BINARY_DIR}/include/${dstdir}/${file}"
+ COMMAND ${CMAKE_COMMAND} -E copy_if_different
+ "${incpath}/${path}"
+ "${CMAKE_BINARY_DIR}/include/${dstdir}"
+ MAIN_DEPENDENCY "${incpath}/${path}"
+ )
+ list(APPEND LIBCXX_CXX_ABI_DEPS
+ "${CMAKE_BINARY_DIR}/include/${dstdir}/${file}")
+ endif()
+ endforeach()
+ if (NOT found)
+ message(FATAL_ERROR "Failed to find ${path}")
+ endif()
+ endforeach()
+ add_custom_target(supcxx_headers DEPENDS ${LIBCXX_CXX_ABI_DEPS})
+ set(LIBCXX_CXX_ABI_DEPS supcxx_headers)
+ include_directories("${CMAKE_BINARY_DIR}/include")
+ install(DIRECTORY "${CMAKE_BINARY_DIR}/include/"
+ DESTINATION include/c++/v1
+ FILES_MATCHING
+ PATTERN "*"
+ )
+elseif (${LIBCXX_CXX_ABI} NOT STREQUAL "none")
+ message(FATAL_ERROR
+ "Currently only none and libsupc++ are supported for c++ abi.")
+endif ()
+
# Configure compiler.
include(config-ix)