91eeba8d26
Summary: This patch contains the following changes: 1. Require that libc++ can find a LLVM source directory. This is done the same way as `libc++abi` currently does. 2. Cleanup ugly configuration code in CMakeLists.txt by using `add_flags`, `add_flags_if`, and `add_flags_if_supported` macros. The goals for this patch are: 1. Help libc++ be more consistent with how LLVM handles CMake options (see PR23670 PR23671). 2. Make it easier to use sanitizers using the `LLVM_USE_SANITIZER` option. 3. Make libc++'s CMakeLists.txt file easier to understand and change. 4. Move towards allowing libc++ to create Sphinx documentation (see http://efcs.ca/libcxx-docs). 5. Move towards allowing libc++ to use other LLVM utilities such as `not` and `FileCheck`. Reviewers: mclow.lists, jroelofs, danalbert Subscribers: cfe-commits Differential Revision: http://reviews.llvm.org/D11308 git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@243503 91177308-0d34-0410-b5e6-96231b3b80d8
21 lines
832 B
CMake
21 lines
832 B
CMake
include(CheckLibraryExists)
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include(CheckCXXCompilerFlag)
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# Check compiler flags
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check_cxx_compiler_flag(/WX LIBCXX_HAS_WX_FLAG)
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check_cxx_compiler_flag(/WX- LIBCXX_HAS_NO_WX_FLAG)
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check_cxx_compiler_flag(/EHsc LIBCXX_HAS_EHSC_FLAG)
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check_cxx_compiler_flag(/EHs- LIBCXX_HAS_NO_EHS_FLAG)
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check_cxx_compiler_flag(/EHa- LIBCXX_HAS_NO_EHA_FLAG)
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check_cxx_compiler_flag(/GR- LIBCXX_HAS_NO_GR_FLAG)
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# Check libraries
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check_library_exists(pthread pthread_create "" LIBCXX_HAS_PTHREAD_LIB)
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check_library_exists(c printf "" LIBCXX_HAS_C_LIB)
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check_library_exists(m ccos "" LIBCXX_HAS_M_LIB)
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check_library_exists(rt clock_gettime "" LIBCXX_HAS_RT_LIB)
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check_library_exists(gcc_s __gcc_personality_v0 "" LIBCXX_HAS_GCC_S_LIB)
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