From f0a26203e7ce856ccf7c12c2c1c9d13e5c3ad939 Mon Sep 17 00:00:00 2001 From: Saleem Abdulrasool Date: Fri, 15 Jul 2016 00:49:42 +0000 Subject: libc++abi: add a top level option for using CompilerRT Add an option to opt into compiler-rt instead of libgcc. This option defaults to OFF to avoid a behaviour change. It is not possible to mix and match different runtime libraries. Disabling this requires that libc++ is built accordingly. This knob is particularly useful for targets that are GCC by default (i.e. Linux). git-svn-id: https://llvm.org/svn/llvm-project/libcxxabi/trunk@275505 91177308-0d34-0410-b5e6-96231b3b80d8 --- cmake/config-ix.cmake | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'cmake') 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) -- cgit v1.2.3