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[compiler-rt] Don't use libcxx if it's not enabled by LLVM_ENABLE_PROJECTS

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This fixes sanitizer-x86_64-linux-fuzzer which switched to new layout and not it
can't link as libcxx is always there.
We should support and tests libcxx but still it was unexpected that libfuzzer
ignored LLVM_ENABLE_PROJECTS_USED.

llvm-svn: 370153
This commit is contained in:
Vitaly Buka 2019-08-28 02:41:14 +00:00
parent deeda85f3f
commit acd8499028
1 changed files with 24 additions and 18 deletions
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42
compiler-rt/CMakeLists.txt
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@ -463,24 +463,30 @@ add_subdirectory(include)
option(COMPILER_RT_USE_LIBCXX
"Enable compiler-rt to use libc++ from the source tree" ON)
if(COMPILER_RT_USE_LIBCXX)
foreach(path IN ITEMS ${LLVM_MAIN_SRC_DIR}/projects/libcxx
${LLVM_MAIN_SRC_DIR}/runtimes/libcxx
${LLVM_MAIN_SRC_DIR}/../libcxx
${LLVM_EXTERNAL_LIBCXX_SOURCE_DIR})
if(IS_DIRECTORY ${path})
set(COMPILER_RT_LIBCXX_PATH ${path})
break()
endif()
endforeach()
foreach(path IN ITEMS ${LLVM_MAIN_SRC_DIR}/projects/libcxxabi
${LLVM_MAIN_SRC_DIR}/runtimes/libcxxabi
${LLVM_MAIN_SRC_DIR}/../libcxxabi
${LLVM_EXTERNAL_LIBCXXABI_SOURCE_DIR})
if(IS_DIRECTORY ${path})
set(COMPILER_RT_LIBCXXABI_PATH ${path})
break()
endif()
endforeach()
if(LLVM_ENABLE_PROJECTS_USED)
# Don't use libcxx if LLVM_ENABLE_PROJECTS does not enable it.
set(COMPILER_RT_LIBCXX_PATH ${LLVM_EXTERNAL_LIBCXX_SOURCE_DIR})
set(COMPILER_RT_LIBCXXABI_PATH ${LLVM_EXTERNAL_LIBCXXABI_SOURCE_DIR})
else()
foreach(path IN ITEMS ${LLVM_MAIN_SRC_DIR}/projects/libcxx
${LLVM_MAIN_SRC_DIR}/runtimes/libcxx
${LLVM_MAIN_SRC_DIR}/../libcxx
${LLVM_EXTERNAL_LIBCXX_SOURCE_DIR})
if(IS_DIRECTORY ${path})
set(COMPILER_RT_LIBCXX_PATH ${path})
break()
endif()
endforeach()
foreach(path IN ITEMS ${LLVM_MAIN_SRC_DIR}/projects/libcxxabi
${LLVM_MAIN_SRC_DIR}/runtimes/libcxxabi
${LLVM_MAIN_SRC_DIR}/../libcxxabi
${LLVM_EXTERNAL_LIBCXXABI_SOURCE_DIR})
if(IS_DIRECTORY ${path})
set(COMPILER_RT_LIBCXXABI_PATH ${path})
break()
endif()
endforeach()
endif()
endif()
set(COMPILER_RT_LLD_PATH ${LLVM_MAIN_SRC_DIR}/tools/lld)