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-rw-r--r--CMakeLists.txt4
-rw-r--r--cmake/config-ix.cmake4
2 files changed, 7 insertions, 1 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 00ebdcf..54650eb 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -113,6 +113,7 @@ option(LIBCXXABI_ENABLE_ASSERTIONS "Enable assertions independent of build mode.
option(LIBCXXABI_ENABLE_PEDANTIC "Compile with pedantic enabled." ON)
option(LIBCXXABI_ENABLE_WERROR "Fail and stop if a warning is triggered." OFF)
option(LIBCXXABI_USE_LLVM_UNWINDER "Build and use the LLVM unwinder." OFF)
+option(LIBCXXABI_USE_COMPILER_RT "Use compiler-rt instead of libgcc" OFF)
option(LIBCXXABI_ENABLE_THREADS "Build with threads enabled" ON)
option(LIBCXXABI_HAS_PTHREAD_API "Ignore auto-detection and force use of pthread API" OFF)
option(LIBCXXABI_BUILD_32_BITS "Build 32 bit libc++abi." ${LLVM_BUILD_32_BITS})
@@ -243,6 +244,9 @@ if (LIBCXXABI_HAS_NOSTDINCXX_FLAG)
string(REPLACE "-stdlib=libstdc++" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
endif()
+if (LIBCXXABI_USE_COMPILER_RT)
+ list(APPEND LIBCXXABI_LINK_FLAGS "-rtlib=compiler-rt")
+endif ()
append_if(LIBCXXABI_COMPILE_FLAGS LIBCXXABI_HAS_WERROR_FLAG -Werror=return-type)
diff --git a/cmake/config-ix.cmake b/cmake/config-ix.cmake
index 1d40b2a..baed2db 100644
--- a/cmake/config-ix.cmake
+++ b/cmake/config-ix.cmake
@@ -42,6 +42,8 @@ check_cxx_compiler_flag(/GR- LIBCXXABI_HAS_NO_GR_FLAG)
check_library_exists(c fopen "" LIBCXXABI_HAS_C_LIB)
check_library_exists(dl dladdr "" LIBCXXABI_HAS_DL_LIB)
check_library_exists(pthread pthread_once "" LIBCXXABI_HAS_PTHREAD_LIB)
-check_library_exists(gcc_s __gcc_personality_v0 "" LIBCXXABI_HAS_GCC_S_LIB)
+if (NOT LIBCXXABI_USE_COMPILER_RT)
+ check_library_exists(gcc_s __gcc_personality_v0 "" LIBCXXABI_HAS_GCC_S_LIB)
+endif ()
check_library_exists(c __cxa_thread_atexit_impl ""
LIBCXXABI_HAS_CXA_THREAD_ATEXIT_IMPL)