Differential D17278 Diff 46611 cmake/modules/FindClang.cmake

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cmake/modules/FindClang.cmake

1# Detect Clang libraries 1​# Detect Clang libraries
2# 2​#
3# Defines the following variables: 3​# Defines the following variables:
4# CLANG_FOUND - True if Clang was found 4​# CLANG_FOUND - True if Clang was found
5# CLANG_INCLUDE_DIRS - Where to find Clang includes 5​# CLANG_INCLUDE_DIRS - Where to find Clang includes
6# CLANG_LIBRARY_DIRS - Where to find Clang libraries 6​# CLANG_LIBRARY_DIRS - Where to find Clang libraries
7​# CLANG_BUILTIN_DIR - Where to find Clang builtin includes
7# 8​#
8# CLANG_LIBCLANG_LIB - Libclang C library 9​# CLANG_CLANG_LIB - Libclang C library
9# 10​#
10# CLANG_CLANGFRONTEND_LIB - Clang Frontend (C++) Library 11​# CLANG_CLANGFRONTEND_LIB - Clang Frontend (C++) Library
11# CLANG_CLANGDRIVER_LIB - Clang Driver (C++) Library 12​# CLANG_CLANGDRIVER_LIB - Clang Driver (C++) Library
12# ... 13​# ...
13# 14​#
14# CLANG_LIBS - All the Clang C++ libraries 15​# CLANG_LIBS - All the Clang C++ libraries
15# 16​#
16# Uses the same include and library paths detected by FindLLVM.cmake 17​# Uses the same include and library paths detected by FindLLVM.cmake
17# 18​#
18# See http://clang.llvm.org/docs/InternalsManual.html for full list of libraries 19​# See http://clang.llvm.org/docs/InternalsManual.html for full list of libraries
19 20​
20#============================================================================= 21​#=============================================================================
21# Copyright 2014-2015 Kevin Funk <kfunk@kde.org> 22​# Copyright 2014-2015 Kevin Funk <kfunk@kde.org>
22# 23​#
23# Distributed under the OSI-approved BSD License (the "License"); 24​# Distributed under the OSI-approved BSD License (the "License");
24# see accompanying file Copyright.txt for details. 25​# see accompanying file Copyright.txt for details.
25# 26​#
26# This software is distributed WITHOUT ANY WARRANTY; without even the 27​# This software is distributed WITHOUT ANY WARRANTY; without even the
27# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 28​# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
28# See the License for more information. 29​# See the License for more information.
29 30​
30#============================================================================= 31​#=============================================================================
31 32​
32set(KNOWN_VERSIONS 6.0 5.0 4.0 3.9 3.8) 33​set(KNOWN_VERSIONS 8 7 6.0 5.0 4.0 3.9 3.8)
33 34​
34foreach(version ${KNOWN_VERSIONS}) 35​foreach(version ${KNOWN_VERSIONS})
35 if (LLVM_DIR OR (DEFINED Clang_FIND_VERSION AND Clang_FIND_VERSION VERSION_GREATER version)) 36​ if (LLVM_DIR OR (DEFINED Clang_FIND_VERSION AND Clang_FIND_VERSION VERSION_GREATER version))
36 break() 37​ break()
37 endif () 38​ endif ()
38 39​
39 if (${Clang_FIND_REQUIRED}) 40​ if (${Clang_FIND_REQUIRED})
40 find_package(LLVM ${version} REQUIRED) 41​ find_package(LLVM ${version} REQUIRED)
41 else () 42​ else ()
42 find_package(LLVM ${version}) 43​ find_package(LLVM ${version})
43 endif () 44​ endif ()
44endforeach() 45​endforeach()
45 46​
46set(CLANG_FOUND FALSE) 47​set(CLANG_FOUND FALSE)
47 48​
48if (LLVM_FOUND AND LLVM_LIBRARY_DIRS) 49​if (LLVM_FOUND AND LLVM_LIBRARY_DIRS)
49 macro(FIND_AND_ADD_CLANG_LIB _libname_) 50​ macro(FIND_AND_ADD_CLANG_LIB _libname_)
50 string(TOUPPER ${_libname_} _prettylibname_) 51​ string(TOUPPER ${_libname_} _prettylibname_)
51 find_library(CLANG_${_prettylibname_}_LIB NAMES ${_libname_} HINTS ${LLVM_LIBRARY_DIRS}) 52​ find_library(CLANG_${_prettylibname_}_LIB NAMES ${_libname_} HINTS ${LLVM_LIBRARY_DIRS} ${ARGN})
52 if(CLANG_${_prettylibname_}_LIB) 53​ if (CLANG_${_prettylibname_}_LIB)
53 set(CLANG_LIBS ${CLANG_LIBS} ${CLANG_${_prettylibname_}_LIB}) 54​ set(CLANG_LIBS ${CLANG_LIBS} ${CLANG_${_prettylibname_}_LIB})
54 endif() 55​ endif()
55 endmacro(FIND_AND_ADD_CLANG_LIB) 56​ endmacro(FIND_AND_ADD_CLANG_LIB)
56 57​
58​ FIND_AND_ADD_CLANG_LIB(clangFrontend)
59​
57 # note: On Windows there's 'libclang.dll' instead of 'clang.dll' -> search for 'libclang', too 60​ # note: On Windows there's 'libclang.dll' instead of 'clang.dll' -> search for 'libclang', too
58 find_library(CLANG_LIBCLANG_LIB NAMES clang libclang HINTS ${LLVM_LIBRARY_DIRS}) # LibClang: high-level C interface 61​ FIND_AND_ADD_CLANG_LIB(clang NAMES clang libclang) # LibClang: high-level C interface
59 62​
60 FIND_AND_ADD_CLANG_LIB(clangFrontend) ​
61 FIND_AND_ADD_CLANG_LIB(clangDriver) 63​ FIND_AND_ADD_CLANG_LIB(clangDriver)
62 FIND_AND_ADD_CLANG_LIB(clangCodeGen) 64​ FIND_AND_ADD_CLANG_LIB(clangCodeGen)
63 FIND_AND_ADD_CLANG_LIB(clangSema) 65​ FIND_AND_ADD_CLANG_LIB(clangSema)
64 FIND_AND_ADD_CLANG_LIB(clangChecker) 66​ FIND_AND_ADD_CLANG_LIB(clangChecker)
65 FIND_AND_ADD_CLANG_LIB(clangAnalysis) 67​ FIND_AND_ADD_CLANG_LIB(clangAnalysis)
66 FIND_AND_ADD_CLANG_LIB(clangRewriteFrontend) 68​ FIND_AND_ADD_CLANG_LIB(clangRewriteFrontend)
67 FIND_AND_ADD_CLANG_LIB(clangRewrite) 69​ FIND_AND_ADD_CLANG_LIB(clangRewrite)
68 FIND_AND_ADD_CLANG_LIB(clangAST) 70​ FIND_AND_ADD_CLANG_LIB(clangAST)
69 FIND_AND_ADD_CLANG_LIB(clangParse) 71​ FIND_AND_ADD_CLANG_LIB(clangParse)
70 FIND_AND_ADD_CLANG_LIB(clangLex) 72​ FIND_AND_ADD_CLANG_LIB(clangLex)
71 FIND_AND_ADD_CLANG_LIB(clangBasic) 73​ FIND_AND_ADD_CLANG_LIB(clangBasic)
72 FIND_AND_ADD_CLANG_LIB(clangARCMigrate) 74​ FIND_AND_ADD_CLANG_LIB(clangARCMigrate)
73 FIND_AND_ADD_CLANG_LIB(clangEdit) 75​ FIND_AND_ADD_CLANG_LIB(clangEdit)
74 FIND_AND_ADD_CLANG_LIB(clangFrontendTool) 76​ FIND_AND_ADD_CLANG_LIB(clangFrontendTool)
75 FIND_AND_ADD_CLANG_LIB(clangRewrite) ​
76 FIND_AND_ADD_CLANG_LIB(clangSerialization) 77​ FIND_AND_ADD_CLANG_LIB(clangSerialization)
77 FIND_AND_ADD_CLANG_LIB(clangTooling) 78​ FIND_AND_ADD_CLANG_LIB(clangTooling)
78 FIND_AND_ADD_CLANG_LIB(clangStaticAnalyzerCheckers) 79​ FIND_AND_ADD_CLANG_LIB(clangStaticAnalyzerCheckers)
79 FIND_AND_ADD_CLANG_LIB(clangStaticAnalyzerCore) 80​ FIND_AND_ADD_CLANG_LIB(clangStaticAnalyzerCore)
80 FIND_AND_ADD_CLANG_LIB(clangStaticAnalyzerFrontend) 81​ FIND_AND_ADD_CLANG_LIB(clangStaticAnalyzerFrontend)
81 FIND_AND_ADD_CLANG_LIB(clangSema) ​
82 FIND_AND_ADD_CLANG_LIB(clangRewriteCore) 82​ FIND_AND_ADD_CLANG_LIB(clangRewriteCore)
83endif() 83​endif()
84 84​
85if(CLANG_LIBS OR CLANG_LIBCLANG_LIB) 85​if(CLANG_LIBS OR CLANG_CLANG_LIB)
86 set(CLANG_FOUND TRUE) 86​ set(CLANG_FOUND TRUE)
87else() 87​else()
88 message(STATUS "Could not find any Clang libraries in ${LLVM_LIBRARY_DIRS}") 88​ message(STATUS "Could not find any Clang libraries in ${LLVM_LIBRARY_DIRS}")
89endif() 89​endif()
90 90​
91if(CLANG_FOUND) 91​if(CLANG_FOUND)
92 set(CLANG_LIBRARY_DIRS ${LLVM_LIBRARY_DIRS}) 92​ set(CLANG_LIBRARY_DIRS ${LLVM_LIBRARY_DIRS})
93 set(CLANG_INCLUDE_DIRS ${LLVM_INCLUDE_DIRS}) 93​ set(CLANG_INCLUDE_DIRS ${LLVM_INCLUDE_DIRS})
94​ set(CLANG_VERSION ${LLVM_VERSION})
95​
96​ # svn version of clang has a svn suffix "8.0.0svn" but installs the header in "8.0.0", without the suffix
97​ string(REPLACE "svn" "" CLANG_VERSION_CLEAN "${CLANG_VERSION}")
98​
99​ find_path(CLANG_BUILTIN_DIR
100​ # cpuid.h because it is defined in ClangSupport constructor as valid clang builtin dir indicator
101​ NAMES "cpuid.h"
102​ PATHS "${CLANG_LIBRARY_DIRS}"
103​ "${CLANG_INCLUDE_DIRS}"
104​ PATH_SUFFIXES "clang/${CLANG_VERSION}/include"
105​ "../../../clang/${CLANG_VERSION}/include"
106​ "clang/${CLANG_VERSION_CLEAN}/include"
107​ "../../../clang/${CLANG_VERSION_CLEAN}/include"
108​ NO_DEFAULT_PATH
109​ )
110​
111​ if (NOT CLANG_BUILTIN_DIR)
112​ message(FATAL_ERROR "Could not find Clang builtin directory")
113​ endif()
114​ get_filename_component(CLANG_BUILTIN_DIR ${CLANG_BUILTIN_DIR} ABSOLUTE)
94 115​
95 # check whether llvm-config comes from an install prefix 116​ # check whether llvm-config comes from an install prefix
96 execute_process( 117​ execute_process(
97 COMMAND ${LLVM_CONFIG_EXECUTABLE} --src-root 118​ COMMAND ${LLVM_CONFIG_EXECUTABLE} --src-root
98 OUTPUT_VARIABLE _llvmSourceRoot 119​ OUTPUT_VARIABLE _llvmSourceRoot
99 OUTPUT_STRIP_TRAILING_WHITESPACE 120​ OUTPUT_STRIP_TRAILING_WHITESPACE
100 ) 121​ )
101 string(FIND "${LLVM_INCLUDE_DIRS}" "${_llvmSourceRoot}" _llvmIsInstalled) 122​ string(FIND "${LLVM_INCLUDE_DIRS}" "${_llvmSourceRoot}" _llvmIsInstalled)
102 if (NOT _llvmIsInstalled) 123​ if (NOT _llvmIsInstalled)
103 message(STATUS "Detected that llvm-config comes from a build-tree, adding more include directories for Clang") 124​ message(STATUS "Detected that llvm-config comes from a build-tree, adding more include directories for Clang")
104 list(APPEND CLANG_INCLUDE_DIRS 125​ list(APPEND CLANG_INCLUDE_DIRS
105 "${LLVM_INSTALL_PREFIX}/tools/clang/include" # build dir 126​ "${LLVM_INSTALL_PREFIX}/tools/clang/include" # build dir
106 "${_llvmSourceRoot}/tools/clang/include" # source dir 127​ "${_llvmSourceRoot}/tools/clang/include" # source dir
107 ) 128​ )
108 endif() 129​ endif()
109 130​
110 message(STATUS "Found Clang (LLVM version: ${LLVM_VERSION})") 131​ message(STATUS "Found Clang (LLVM version: ${CLANG_VERSION})")
111 message(STATUS " Include dirs: ${CLANG_INCLUDE_DIRS}") 132​ message(STATUS " Include dirs: ${CLANG_INCLUDE_DIRS}")
112 message(STATUS " Clang libraries: ${CLANG_LIBS}") 133​ message(STATUS " Clang libraries: ${CLANG_LIBS}")
113 message(STATUS " Libclang C library: ${CLANG_LIBCLANG_LIB}") 134​ message(STATUS " Libclang C library: ${CLANG_CLANG_LIB}")
135​ message(STATUS " Builtin include dir: ${CLANG_BUILTIN_DIR}")
114else() 136​else()
115 if(Clang_FIND_REQUIRED) 137​ if(Clang_FIND_REQUIRED)
116 message(FATAL_ERROR "Could NOT find Clang") 138​ message(FATAL_ERROR "Could NOT find Clang")
117 endif() 139​ endif()
118endif() 140​endif()