3f640ef3d2
This commit reworks the LLVM/Clang/LLD discovery process for CMake. The
biggest changes are that:
1. We search for LLVM from most preferred directory to least, skipping
any `llvm-config` that is the wrong version, or that doesn't
support the requested link mode ("static" or "shared").
2. `ZIG_PREFER_CLANG_CPP_DYLIB` has been renamed to `ZIG_SHARED_LLVM`,
to better align with `ZIG_STATIC_LLVM`.
3. We only search for LLVM in the same directory alongside LLVM.
4. LLVM's link mode is forwarded to Clang, so that we can look for the
appropriate shared/static libraries.
5. We use `--link-static` when querying `--system-libs` from llvm-config,
so that this will include libz and other dependencies for
statically linking LLD
68 lines
2.1 KiB
CMake
68 lines
2.1 KiB
CMake
# Copyright (c) 2016 Andrew Kelley
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# This file is MIT licensed.
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# See http://opensource.org/licenses/MIT
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# CLANG_FOUND
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# CLANG_INCLUDE_DIRS
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# CLANG_LIBRARIES
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# CLANG_LIBDIRS
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#TODO: FIXME
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find_path(CLANG_INCLUDE_DIRS NAMES clang/Frontend/ASTUnit.h
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HINTS ${LLVM_INCLUDE_DIRS}
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NO_DEFAULT_PATH # Only look for clang next to LLVM
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)
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if(${LLVM_LINK_MODE} STREQUAL "shared")
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find_library(CLANG_LIBRARIES
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NAMES
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libclang-cpp.so.14
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clang-cpp-14.0
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clang-cpp140
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clang-cpp
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NAMES_PER_DIR
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HINTS "${LLVM_LIBDIRS}"
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NO_DEFAULT_PATH # Only look for Clang next to LLVM
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)
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else()
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macro(FIND_AND_ADD_CLANG_LIB _libname_)
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string(TOUPPER ${_libname_} _prettylibname_)
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find_library(CLANG_${_prettylibname_}_LIB NAMES ${_libname_} NAMES_PER_DIR
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HINTS "${LLVM_LIBDIRS}"
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NO_DEFAULT_PATH # Only look for Clang next to LLVM
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)
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if(CLANG_${_prettylibname_}_LIB)
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set(CLANG_LIBRARIES ${CLANG_LIBRARIES} ${CLANG_${_prettylibname_}_LIB})
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endif()
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endmacro(FIND_AND_ADD_CLANG_LIB)
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FIND_AND_ADD_CLANG_LIB(clangFrontendTool)
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FIND_AND_ADD_CLANG_LIB(clangCodeGen)
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FIND_AND_ADD_CLANG_LIB(clangFrontend)
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FIND_AND_ADD_CLANG_LIB(clangDriver)
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FIND_AND_ADD_CLANG_LIB(clangSerialization)
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FIND_AND_ADD_CLANG_LIB(clangSema)
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FIND_AND_ADD_CLANG_LIB(clangStaticAnalyzerFrontend)
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FIND_AND_ADD_CLANG_LIB(clangStaticAnalyzerCheckers)
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FIND_AND_ADD_CLANG_LIB(clangStaticAnalyzerCore)
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FIND_AND_ADD_CLANG_LIB(clangAnalysis)
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FIND_AND_ADD_CLANG_LIB(clangASTMatchers)
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FIND_AND_ADD_CLANG_LIB(clangAST)
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FIND_AND_ADD_CLANG_LIB(clangParse)
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FIND_AND_ADD_CLANG_LIB(clangSema)
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FIND_AND_ADD_CLANG_LIB(clangBasic)
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FIND_AND_ADD_CLANG_LIB(clangEdit)
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FIND_AND_ADD_CLANG_LIB(clangLex)
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FIND_AND_ADD_CLANG_LIB(clangARCMigrate)
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FIND_AND_ADD_CLANG_LIB(clangRewriteFrontend)
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FIND_AND_ADD_CLANG_LIB(clangRewrite)
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FIND_AND_ADD_CLANG_LIB(clangCrossTU)
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FIND_AND_ADD_CLANG_LIB(clangIndex)
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FIND_AND_ADD_CLANG_LIB(clangToolingCore)
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endif()
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(clang DEFAULT_MSG CLANG_LIBRARIES CLANG_INCLUDE_DIRS)
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mark_as_advanced(CLANG_INCLUDE_DIRS CLANG_LIBRARIES CLANG_LIBDIRS)
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