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zig/cmake/Findclang.cmake

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CMake
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fix up msvc stuff to make it work on linux and macos too
2017-09-13 05:17:19 +01:00
# Copyright (c) 2016 Andrew Kelley
# This file is MIT licensed.
# See http://opensource.org/licenses/MIT
# CLANG_FOUND
# CLANG_INCLUDE_DIRS
# CLANG_LIBRARIES
add CLANG_LIBDIRS cmake build variable Mirrors LLVM_LIBDIRS, tells cmake where to look for libclang libraries.
2018-03-17 17:39:58 +00:00
# CLANG_LIBDIRS
fix up msvc stuff to make it work on linux and macos too
2017-09-13 05:17:19 +01:00
simplify cmake logic for finding clang which fixes the build on windows
2020-03-22 21:35:06 +00:00
find_path(CLANG_INCLUDE_DIRS NAMES clang/Frontend/ASTUnit.h
CMake: Improve usage of `llvm-config`, esp. for consistent linking 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
2022-07-16 02:51:41 +01:00
HINTS ${LLVM_INCLUDE_DIRS}
CMake: Search for Clang in CMAKE_LIBRARY_PATH, CMAKE_PREFIX_PATH, and CMAKE_FRAMEWORK_PATH On some systems (esp. systems that use unique hashed file-paths for library-versions like Nix), we can't expect LLVM and Clang to share lib/bin directories. The best we can do is find the matching clang libraries in the CMAKE_LIBRARY_PATH provided by the environment
2022-07-25 18:29:38 +01:00
# Only look for Clang next to LLVM or in { CMAKE_PREFIX_PATH, CMAKE_LIBRARY_PATH, CMAKE_FRAMEWORK_PATH }
NO_SYSTEM_ENVIRONMENT_PATH
NO_CMAKE_SYSTEM_PATH
look for clang-cpp shared lib when it exists See #4799
2020-04-10 03:28:53 +01:00
)
CMake: Improve usage of `llvm-config`, esp. for consistent linking This commit reworks the LLVM/Clang/LLD discovery process for CMake. The biggest changes are that: 1. We search for LLVM from most preferred directory to least, skipping any `llvm-config` that is the wrong version, or that doesn't support the requested link mode ("static" or "shared"). 2. `ZIG_PREFER_CLANG_CPP_DYLIB` has been renamed to `ZIG_SHARED_LLVM`, to better align with `ZIG_STATIC_LLVM`. 3. We only search for LLVM in the same directory alongside LLVM. 4. LLVM's link mode is forwarded to Clang, so that we can look for the appropriate shared/static libraries. 5. We use `--link-static` when querying `--system-libs` from llvm-config, so that this will include libz and other dependencies for statically linking LLD
2022-07-16 02:51:41 +01:00
if(${LLVM_LINK_MODE} STREQUAL "shared")
update cmake, update readme, in response to the dynamic linking fiasco
2020-04-17 23:41:21 +01:00
find_library(CLANG_LIBRARIES
look for clang-cpp shared lib when it exists See #4799
2020-04-10 03:28:53 +01:00
NAMES
update cmake files to LLVM 16
2023-01-26 03:26:14 +00:00
libclang-cpp.so.16
clang-cpp-16.0
clang-cpp160
look for clang-cpp shared lib when it exists See #4799
2020-04-10 03:28:53 +01:00
clang-cpp
CMake: Use NAMES_PER_DIR in all lookups CMake has a surprising default behavior where looking up a library by multiple names gives the name order higher priority than the directory search order. For example, if your system provides "llvm-config-14" and CMAKE_PREFIX_PATH includes "llvm-config", CMake will always end up choosing the system-provided llvm-config-14. This change add NAMES_PER_DIR to request the more sensible behavior: directory search order has higher priority than name order, so CMAKE_PREFIX_PATH always wins over system-provided tools/libraries.
2022-07-13 18:36:25 +01:00
NAMES_PER_DIR
CMake: Improve usage of `llvm-config`, esp. for consistent linking 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
2022-07-16 02:51:41 +01:00
HINTS "${LLVM_LIBDIRS}"
CMake: Search for Clang in CMAKE_LIBRARY_PATH, CMAKE_PREFIX_PATH, and CMAKE_FRAMEWORK_PATH On some systems (esp. systems that use unique hashed file-paths for library-versions like Nix), we can't expect LLVM and Clang to share lib/bin directories. The best we can do is find the matching clang libraries in the CMAKE_LIBRARY_PATH provided by the environment
2022-07-25 18:29:38 +01:00
# Only look for Clang next to LLVM or in { CMAKE_PREFIX_PATH, CMAKE_LIBRARY_PATH, CMAKE_FRAMEWORK_PATH }
NO_SYSTEM_ENVIRONMENT_PATH
NO_CMAKE_SYSTEM_PATH
look for clang-cpp shared lib when it exists See #4799
2020-04-10 03:28:53 +01:00
)
CMake: Improve usage of `llvm-config`, esp. for consistent linking 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
2022-07-16 02:51:41 +01:00
else()
look for clang-cpp shared lib when it exists See #4799
2020-04-10 03:28:53 +01:00
macro(FIND_AND_ADD_CLANG_LIB _libname_)
simplify cmake logic for finding clang which fixes the build on windows
2020-03-22 21:35:06 +00:00
string(TOUPPER ${_libname_} _prettylibname_)
CMake: Use NAMES_PER_DIR in all lookups CMake has a surprising default behavior where looking up a library by multiple names gives the name order higher priority than the directory search order. For example, if your system provides "llvm-config-14" and CMAKE_PREFIX_PATH includes "llvm-config", CMake will always end up choosing the system-provided llvm-config-14. This change add NAMES_PER_DIR to request the more sensible behavior: directory search order has higher priority than name order, so CMAKE_PREFIX_PATH always wins over system-provided tools/libraries.
2022-07-13 18:36:25 +01:00
find_library(CLANG_${_prettylibname_}_LIB NAMES ${_libname_} NAMES_PER_DIR
CMake: Improve usage of `llvm-config`, esp. for consistent linking This commit reworks the LLVM/Clang/LLD discovery process for CMake. The biggest changes are that: 1. We search for LLVM from most preferred directory to least, skipping any `llvm-config` that is the wrong version, or that doesn't support the requested link mode ("static" or "shared"). 2. `ZIG_PREFER_CLANG_CPP_DYLIB` has been renamed to `ZIG_SHARED_LLVM`, to better align with `ZIG_STATIC_LLVM`. 3. We only search for LLVM in the same directory alongside LLVM. 4. LLVM's link mode is forwarded to Clang, so that we can look for the appropriate shared/static libraries. 5. We use `--link-static` when querying `--system-libs` from llvm-config, so that this will include libz and other dependencies for statically linking LLD
2022-07-16 02:51:41 +01:00
HINTS "${LLVM_LIBDIRS}"
CMake: Search for Clang in CMAKE_LIBRARY_PATH, CMAKE_PREFIX_PATH, and CMAKE_FRAMEWORK_PATH On some systems (esp. systems that use unique hashed file-paths for library-versions like Nix), we can't expect LLVM and Clang to share lib/bin directories. The best we can do is find the matching clang libraries in the CMAKE_LIBRARY_PATH provided by the environment
2022-07-25 18:29:38 +01:00
# Only look for Clang next to LLVM or in { CMAKE_PREFIX_PATH, CMAKE_LIBRARY_PATH, CMAKE_FRAMEWORK_PATH }
NO_SYSTEM_ENVIRONMENT_PATH
NO_CMAKE_SYSTEM_PATH
look for clang-cpp shared lib when it exists See #4799
2020-04-10 03:28:53 +01:00
)
cmake: allow not finding some clang libs partial revert of aaf99371b22e816a4162391d799b9d22bba21120 because it broke the build for some people
2020-04-12 03:09:17 +01:00
if(CLANG_${_prettylibname_}_LIB)
set(CLANG_LIBRARIES ${CLANG_LIBRARIES} ${CLANG_${_prettylibname_}_LIB})
endif()
look for clang-cpp shared lib when it exists See #4799
2020-04-10 03:28:53 +01:00
endmacro(FIND_AND_ADD_CLANG_LIB)
simplify cmake logic for finding clang which fixes the build on windows
2020-03-22 21:35:06 +00:00
look for clang-cpp shared lib when it exists See #4799
2020-04-10 03:28:53 +01:00
FIND_AND_ADD_CLANG_LIB(clangFrontendTool)
FIND_AND_ADD_CLANG_LIB(clangCodeGen)
FIND_AND_ADD_CLANG_LIB(clangFrontend)
FIND_AND_ADD_CLANG_LIB(clangDriver)
FIND_AND_ADD_CLANG_LIB(clangSerialization)
FIND_AND_ADD_CLANG_LIB(clangSema)
FIND_AND_ADD_CLANG_LIB(clangStaticAnalyzerFrontend)
FIND_AND_ADD_CLANG_LIB(clangStaticAnalyzerCheckers)
FIND_AND_ADD_CLANG_LIB(clangStaticAnalyzerCore)
FIND_AND_ADD_CLANG_LIB(clangAnalysis)
FIND_AND_ADD_CLANG_LIB(clangASTMatchers)
FIND_AND_ADD_CLANG_LIB(clangAST)
FIND_AND_ADD_CLANG_LIB(clangParse)
FIND_AND_ADD_CLANG_LIB(clangSema)
FIND_AND_ADD_CLANG_LIB(clangBasic)
FIND_AND_ADD_CLANG_LIB(clangEdit)
FIND_AND_ADD_CLANG_LIB(clangLex)
FIND_AND_ADD_CLANG_LIB(clangARCMigrate)
FIND_AND_ADD_CLANG_LIB(clangRewriteFrontend)
FIND_AND_ADD_CLANG_LIB(clangRewrite)
FIND_AND_ADD_CLANG_LIB(clangCrossTU)
FIND_AND_ADD_CLANG_LIB(clangIndex)
llvm11: link against libClangToolingCore This is needed to successfully link against llvm, clang, and lld 11.
2020-07-25 01:08:39 +01:00
FIND_AND_ADD_CLANG_LIB(clangToolingCore)
build: add new clang libraries for LLVM 15 upgrade
2022-08-03 01:14:19 +01:00
FIND_AND_ADD_CLANG_LIB(clangExtractAPI)
FIND_AND_ADD_CLANG_LIB(clangSupport)
look for clang-cpp shared lib when it exists See #4799
2020-04-10 03:28:53 +01:00
endif()
fix up msvc stuff to make it work on linux and macos too
2017-09-13 05:17:19 +01:00
build: first pass on geting stage3 building under x64_64-windows-msvc
2022-11-08 07:14:39 +00:00
if (MSVC)
build: simplify llvm-config provided system library parsing - Revert the addition of CLANG_SYSTEM_LIBARIES and LLVM_SYSTEM_LIBRARIES - Change addCMakeLibraryList to parse non-absolute path .lib dependencies as system libraries
2023-01-04 07:18:51 +00:00
set(CLANG_LIBRARIES ${CLANG_LIBRARIES} "version.lib")
build: first pass on geting stage3 building under x64_64-windows-msvc
2022-11-08 07:14:39 +00:00
endif()
fix up msvc stuff to make it work on linux and macos too
2017-09-13 05:17:19 +01:00
include(FindPackageHandleStandardArgs)
cmake: address new warnings from cmake-3.17 Match package-name case from CMakeLists.txt . New warning sample: The package name passed to `find_package_handle_standard_args` (LLVM) does not match the name of the calling package (llvm). This can lead to problems in calling code that expects `find_package` result variables (e.g., `_FOUND`) to follow a certain pattern.
2020-03-25 22:43:28 +00:00
find_package_handle_standard_args(clang DEFAULT_MSG CLANG_LIBRARIES CLANG_INCLUDE_DIRS)
fix up msvc stuff to make it work on linux and macos too
2017-09-13 05:17:19 +01:00
add CLANG_LIBDIRS cmake build variable Mirrors LLVM_LIBDIRS, tells cmake where to look for libclang libraries.
2018-03-17 17:39:58 +00:00
mark_as_advanced(CLANG_INCLUDE_DIRS CLANG_LIBRARIES CLANG_LIBDIRS)
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