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[libc++abi] Ensure custom libc++ header paths are honoured during libc++abi build 

This is necessary for standalone builds where the libc++ in use has a
custom configuration set up inside __config_site -- one needs to build
libc++abi against the installed headers of libc++ (which are properly
configured) instead of the ones inside libcxx/include.

See https://reviews.llvm.org/rGe619e9d#927848 for details.
This commit is contained in:
Louis Dionne 2020-06-15 13:20:04 -04:00
parent 32f1a909b8
commit e54828ad47
1 changed files with 3 additions and 5 deletions
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8
libcxxabi/CMakeLists.txt
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@ -126,13 +126,11 @@ if (NOT LIBCXXABI_ENABLE_SHARED AND NOT LIBCXXABI_ENABLE_STATIC)
message(FATAL_ERROR "libc++abi must be built as either a shared or static library.")
endif()
set(LIBCXXABI_LIBCXX_PATH "${CMAKE_CURRENT_LIST_DIR}/../libcxx")
set(LIBCXXABI_LIBCXX_INCLUDES "${LIBCXXABI_LIBCXX_PATH}/include")
set(LIBCXXABI_LIBCXX_PATH "${CMAKE_CURRENT_LIST_DIR}/../libcxx" CACHE PATH
"Specify path to libc++ source." FORCE)
"Specify path to libc++ source.")
set(LIBCXXABI_LIBCXX_INCLUDES "${LIBCXXABI_LIBCXX_PATH}/include" CACHE PATH
"Specify path to libc++ includes." FORCE)
"Specify path to libc++ includes.")
message(STATUS "Libc++abi will be using libc++ includes from ${LIBCXXABI_LIBCXX_INCLUDES}")
option(LIBCXXABI_HERMETIC_STATIC_LIBRARY
"Do not export any symbols from the static library." OFF)