1# If we are not building as a part of LLVM, build Clang as an 2# standalone project, using LLVM as an external library: 3if( CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR ) 4 project(Clang) 5 cmake_minimum_required(VERSION 2.8) 6 7 set(CLANG_PATH_TO_LLVM_SOURCE "" CACHE PATH 8 "Path to LLVM source code. Not necessary if using an installed LLVM.") 9 set(CLANG_PATH_TO_LLVM_BUILD "" CACHE PATH 10 "Path to the directory where LLVM was built or installed.") 11 12 if( CLANG_PATH_TO_LLVM_SOURCE ) 13 if( NOT EXISTS "${CLANG_PATH_TO_LLVM_SOURCE}/cmake/config-ix.cmake" ) 14 message(FATAL_ERROR "Please set CLANG_PATH_TO_LLVM_SOURCE to the root directory of LLVM source code.") 15 else() 16 get_filename_component(LLVM_MAIN_SRC_DIR ${CLANG_PATH_TO_LLVM_SOURCE} 17 ABSOLUTE) 18 list(APPEND CMAKE_MODULE_PATH "${LLVM_MAIN_SRC_DIR}/cmake/modules") 19 endif() 20 endif() 21 22 if( NOT EXISTS "${CLANG_PATH_TO_LLVM_BUILD}/bin/tblgen${CMAKE_EXECUTABLE_SUFFIX}" ) 23 # Looking for bin/Debug/tblgen is a complete hack. How can we get 24 # around this? 25 if( NOT EXISTS "${CLANG_PATH_TO_LLVM_BUILD}/bin/Debug/tblgen${CMAKE_EXECUTABLE_SUFFIX}" ) 26 message(FATAL_ERROR "Please set CLANG_PATH_TO_LLVM_BUILD to a directory containing a LLVM build.") 27 endif() 28 endif() 29 30 list(APPEND CMAKE_MODULE_PATH "${CLANG_PATH_TO_LLVM_BUILD}/share/llvm/cmake") 31 32 get_filename_component(PATH_TO_LLVM_BUILD ${CLANG_PATH_TO_LLVM_BUILD} 33 ABSOLUTE) 34 35 include(AddLLVM) 36 include(TableGen) 37 include("${CLANG_PATH_TO_LLVM_BUILD}/share/llvm/cmake/LLVMConfig.cmake") 38 include(HandleLLVMOptions) 39 40 set(PACKAGE_VERSION "${LLVM_PACKAGE_VERSION}") 41 42 set(LLVM_MAIN_INCLUDE_DIR "${LLVM_MAIN_SRC_DIR}/include") 43 set(LLVM_BINARY_DIR ${CMAKE_BINARY_DIR}) 44 45 set(CMAKE_INCLUDE_CURRENT_DIR ON) 46 include_directories("${PATH_TO_LLVM_BUILD}/include" "${LLVM_MAIN_INCLUDE_DIR}") 47 link_directories("${PATH_TO_LLVM_BUILD}/lib") 48 49 if( EXISTS "${CLANG_PATH_TO_LLVM_BUILD}/bin/tblgen${CMAKE_EXECUTABLE_SUFFIX}" ) 50 set(LLVM_TABLEGEN_EXE "${PATH_TO_LLVM_BUILD}/bin/tblgen") 51 else() 52 # FIXME: This is an utter hack. 53 set(LLVM_TABLEGEN_EXE "${PATH_TO_LLVM_BUILD}/bin/Debug/tblgen") 54 endif() 55 56 set( CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin ) 57 set( CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib ) 58 set( CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib ) 59 60 set( CLANG_BUILT_STANDALONE 1 ) 61endif() 62 63set(CLANG_RESOURCE_DIR "" CACHE STRING 64 "Relative directory from the Clang binary to its resource files.") 65 66set(C_INCLUDE_DIRS "" CACHE STRING 67 "Colon separated list of directories clang will search for headers.") 68 69set(CLANG_VENDOR "" CACHE STRING 70 "Vendor-specific text for showing with version information.") 71 72if( CLANG_VENDOR ) 73 add_definitions( -DCLANG_VENDOR="${CLANG_VENDOR} " ) 74endif() 75 76set(CLANG_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}) 77set(CLANG_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}) 78 79if( CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR AND NOT MSVC_IDE ) 80 message(FATAL_ERROR "In-source builds are not allowed. CMake would overwrite " 81"the makefiles distributed with LLVM. Please create a directory and run cmake " 82"from there, passing the path to this source directory as the last argument. " 83"This process created the file `CMakeCache.txt' and the directory " 84"`CMakeFiles'. Please delete them.") 85endif() 86 87if( NOT CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR ) 88 file(GLOB_RECURSE 89 tablegenned_files_on_include_dir 90 "${CLANG_SOURCE_DIR}/include/clang/*.inc") 91 if( tablegenned_files_on_include_dir ) 92 message(FATAL_ERROR "Apparently there is a previous in-source build, " 93"probably as the result of running `configure' and `make' on " 94"${CLANG_SOURCE_DIR}. This may cause problems. The suspicious files are:\n" 95"${tablegenned_files_on_include_dir}\nPlease clean the source directory.") 96 endif() 97endif() 98 99# Compute the Clang version from the LLVM version. 100string(REGEX MATCH "[0-9]+\\.[0-9]+(\\.[0-9]+)?" CLANG_VERSION 101 ${PACKAGE_VERSION}) 102message(STATUS "Clang version: ${CLANG_VERSION}") 103 104string(REGEX REPLACE "([0-9]+)\\.[0-9]+(\\.[0-9]+)?" "\\1" CLANG_VERSION_MAJOR 105 ${CLANG_VERSION}) 106string(REGEX REPLACE "[0-9]+\\.([0-9]+)(\\.[0-9]+)?" "\\1" CLANG_VERSION_MINOR 107 ${CLANG_VERSION}) 108if (${CLANG_VERSION} MATCHES "[0-9]+\\.[0-9]+\\.[0-9]+") 109 set(CLANG_HAS_VERSION_PATCHLEVEL 1) 110 string(REGEX REPLACE "[0-9]+\\.[0-9]+\\.([0-9]+)" "\\1" CLANG_VERSION_PATCHLEVEL 111 ${CLANG_VERSION}) 112else() 113 set(CLANG_HAS_VERSION_PATCHLEVEL 0) 114endif() 115 116# Configure the Version.inc file. 117configure_file( 118 ${CMAKE_CURRENT_SOURCE_DIR}/include/clang/Basic/Version.inc.in 119 ${CMAKE_CURRENT_BINARY_DIR}/include/clang/Basic/Version.inc) 120 121# Add appropriate flags for GCC 122if (LLVM_COMPILER_IS_GCC_COMPATIBLE) 123 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-common -Woverloaded-virtual -Wcast-qual -fno-strict-aliasing -pedantic -Wno-long-long -Wall -W -Wno-unused-parameter -Wwrite-strings") 124endif () 125 126if (APPLE) 127 set(CMAKE_MODULE_LINKER_FLAGS "-Wl,-flat_namespace -Wl,-undefined -Wl,suppress") 128endif () 129 130configure_file( 131 ${CLANG_SOURCE_DIR}/include/clang/Config/config.h.cmake 132 ${CLANG_BINARY_DIR}/include/clang/Config/config.h) 133 134include(LLVMParseArguments) 135 136function(clang_tablegen) 137 # Syntax: 138 # clang_tablegen output-file [tablegen-arg ...] SOURCE source-file 139 # [[TARGET cmake-target-name] [DEPENDS extra-dependency ...]] 140 # 141 # Generates a custom command for invoking tblgen as 142 # 143 # tblgen source-file -o=output-file tablegen-arg ... 144 # 145 # and, if cmake-target-name is provided, creates a custom target for 146 # executing the custom command depending on output-file. It is 147 # possible to list more files to depend after DEPENDS. 148 149 parse_arguments( CTG "SOURCE;TARGET;DEPENDS" "" ${ARGN} ) 150 151 if( NOT CTG_SOURCE ) 152 message(FATAL_ERROR "SOURCE source-file required by clang_tablegen") 153 endif() 154 155 set( LLVM_TARGET_DEFINITIONS ${CTG_SOURCE} ) 156 tablegen( ${CTG_DEFAULT_ARGS} ) 157 158 list( GET CTG_DEFAULT_ARGS 0 output_file ) 159 if( CTG_TARGET ) 160 add_custom_target( ${CTG_TARGET} DEPENDS ${output_file} ${CTG_DEPENDS} ) 161 set_target_properties( ${CTG_TARGET} PROPERTIES FOLDER "Clang tablegenning") 162 endif() 163endfunction(clang_tablegen) 164 165macro(add_clang_library name) 166 llvm_process_sources(srcs ${ARGN}) 167 if(MSVC_IDE OR XCODE) 168 string( REGEX MATCHALL "/[^/]+" split_path ${CMAKE_CURRENT_SOURCE_DIR}) 169 list( GET split_path -1 dir) 170 file( GLOB_RECURSE headers 171 ../../../include/clang/StaticAnalyzer${dir}/*.h 172 ../../../include/clang/StaticAnalyzer${dir}/*.td 173 ../../../include/clang/StaticAnalyzer${dir}/*.def 174 ../../include/clang${dir}/*.h 175 ../../include/clang${dir}/*.td 176 ../../include/clang${dir}/*.def) 177 set(srcs ${srcs} ${headers}) 178 endif(MSVC_IDE OR XCODE) 179 if (MODULE) 180 set(libkind MODULE) 181 elseif (SHARED_LIBRARY) 182 set(libkind SHARED) 183 else() 184 set(libkind) 185 endif() 186 add_library( ${name} ${libkind} ${srcs} ) 187 if( LLVM_COMMON_DEPENDS ) 188 add_dependencies( ${name} ${LLVM_COMMON_DEPENDS} ) 189 endif( LLVM_COMMON_DEPENDS ) 190 191 target_link_libraries( ${name} ${LLVM_USED_LIBS} ) 192 llvm_config( ${name} ${LLVM_LINK_COMPONENTS} ) 193 target_link_libraries( ${name} ${LLVM_COMMON_LIBS} ) 194 link_system_libs( ${name} ) 195 196 add_dependencies(${name} ClangDiagnosticCommon) 197 if(MSVC) 198 get_target_property(cflag ${name} COMPILE_FLAGS) 199 if(NOT cflag) 200 set(cflag "") 201 endif(NOT cflag) 202 set(cflag "${cflag} /Za") 203 set_target_properties(${name} PROPERTIES COMPILE_FLAGS ${cflag}) 204 endif(MSVC) 205 install(TARGETS ${name} 206 LIBRARY DESTINATION lib${LLVM_LIBDIR_SUFFIX} 207 ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX}) 208 set_target_properties(${name} PROPERTIES FOLDER "Clang libraries") 209endmacro(add_clang_library) 210 211macro(add_clang_executable name) 212 add_llvm_executable( ${name} ${ARGN} ) 213 set_target_properties(${name} PROPERTIES FOLDER "Clang executables") 214endmacro(add_clang_executable) 215 216include_directories(BEFORE 217 ${CMAKE_CURRENT_BINARY_DIR}/include 218 ${CMAKE_CURRENT_SOURCE_DIR}/include 219 ) 220 221install(DIRECTORY include/ 222 DESTINATION include 223 FILES_MATCHING 224 PATTERN "*.def" 225 PATTERN "*.h" 226 PATTERN ".svn" EXCLUDE 227 ) 228 229install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/include/ 230 DESTINATION include 231 FILES_MATCHING 232 PATTERN "CMakeFiles" EXCLUDE 233 PATTERN "*.inc" 234 ) 235 236add_definitions( -D_GNU_SOURCE -DHAVE_CLANG_CONFIG_H ) 237 238# Clang version information 239set(CLANG_EXECUTABLE_VERSION 240 "${CLANG_VERSION_MAJOR}.${CLANG_VERSION_MINOR}" CACHE STRING 241 "Version number that will be placed into the clang executable, in the form XX.YY") 242set(LIBCLANG_LIBRARY_VERSION 243 "${CLANG_VERSION_MAJOR}.${CLANG_VERSION_MINOR}" CACHE STRING 244 "Version number that will be placed into the libclang library , in the form XX.YY") 245mark_as_advanced(CLANG_EXECUTABLE_VERSION LIBCLANG_LIBRARY_VERSION) 246 247 248option(CLANG_BUILD_EXAMPLES "Build CLANG example programs." OFF) 249if(CLANG_BUILD_EXAMPLES) 250 add_subdirectory(examples) 251endif () 252 253add_subdirectory(include) 254add_subdirectory(lib) 255add_subdirectory(tools) 256add_subdirectory(runtime) 257 258# TODO: docs. 259add_subdirectory(test) 260 261if( LLVM_INCLUDE_TESTS ) 262 if( NOT CLANG_BUILT_STANDALONE ) 263 add_subdirectory(unittests) 264 endif() 265endif() 266 267# Workaround for MSVS10 to avoid the Dialog Hell 268# FIXME: This could be removed with future version of CMake. 269if( CLANG_BUILT_STANDALONE AND MSVC_VERSION EQUAL 1600 ) 270 set(CLANG_SLN_FILENAME "${CMAKE_CURRENT_BINARY_DIR}/Clang.sln") 271 if( EXISTS "${CLANG_SLN_FILENAME}" ) 272 file(APPEND "${CLANG_SLN_FILENAME}" "\n# This should be regenerated!\n") 273 endif() 274endif() 275