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# Find the native LLVM includes and library
#
# LLVM_INCLUDE_DIR - where to find llvm include files
# LLVM_LIBRARY_DIR - where to find llvm libs
# LLVM_CFLAGS - llvm compiler flags
# LLVM_LDFLAGS - llvm linker flags
# LLVM_MODULE_LIBS - list of llvm libs for working with modules.
# LLVM_FOUND - True if llvm found.
if (LLVM_INSTALL_DIR)
find_program(LLVM_CONFIG_EXECUTABLE
NAMES llvm-config-37 llvm-config-3.7 llvm-config-36 llvm-config-3.6 llvm-config-38 llvm-config-3.8 llvm-config-39 llvm-config-3.9 llvm-config llvm-config-35 llvm-config-3.5 llvm-config-34 llvm-config-3.4
DOC "llvm-config executable"
PATHS ${LLVM_INSTALL_DIR} NO_DEFAULT_PATH)
else (LLVM_INSTALL_DIR)
find_program(LLVM_CONFIG_EXECUTABLE
NAMES llvm-config-37 llvm-config-3.7 llvm-config-36 llvm-config-3.6 llvm-config-38 llvm-config-3.8 llvm-config-39 llvm-config-3.9 llvm-config llvm-config-35 llvm-config-3.5 llvm-config-34 llvm-config-3.4
DOC "llvm-config executable")
endif (LLVM_INSTALL_DIR)
if (LLVM_CONFIG_EXECUTABLE)
message(STATUS "LLVM llvm-config found at: ${LLVM_CONFIG_EXECUTABLE}")
else (LLVM_CONFIG_EXECUTABLE)
message(FATAL_ERROR "Could NOT find LLVM executable, please add -DLLVM_INSTALL_DIR=/path/to/llvm-config/ in cmake command")
endif (LLVM_CONFIG_EXECUTABLE)
execute_process(
COMMAND ${LLVM_CONFIG_EXECUTABLE} --version
OUTPUT_VARIABLE LLVM_VERSION
OUTPUT_STRIP_TRAILING_WHITESPACE
)
string(REGEX REPLACE "([0-9])\\.([0-9]*).*" "\\1\\2" LLVM_VERSION_NODOT ${LLVM_VERSION})
string(REGEX REPLACE "([0-9])\\.([0-9]*).*" "\\1.\\2" LLVM_VERSION_NOPATCH ${LLVM_VERSION})
if (LLVM_FIND_VERSION_MAJOR AND LLVM_FIND_VERSION_MINOR)
SET(LLVM_FIND_VERSION_NODOT "${LLVM_FIND_VERSION_MAJOR}${LLVM_FIND_VERSION_MINOR}")
if (LLVM_VERSION_NODOT VERSION_LESS LLVM_FIND_VERSION_NODOT)
message(FATAL_ERROR "imcompatible LLVM version ${LLVM_VERSION} required ${LLVM_FIND_VERSION}")
else (LLVM_VERSION_NODOT VERSION_LESS LLVM_FIND_VERSION_NODOT)
if (LLVM_VERSION_NODOT VERSION_EQUAL LLVM_FIND_VERSION_NODOT)
message(STATUS "find stable LLVM version ${LLVM_VERSION}")
else (LLVM_VERSION_NODOT VERSION_EQUAL LLVM_FIND_VERSION_NODOT)
message(STATUS "find unstable LLVM version ${LLVM_VERSION}")
endif (LLVM_VERSION_NODOT VERSION_EQUAL LLVM_FIND_VERSION_NODOT)
add_definitions("-DLLVM_${LLVM_VERSION_NODOT}")
endif (LLVM_VERSION_NODOT VERSION_LESS LLVM_FIND_VERSION_NODOT)
endif (LLVM_FIND_VERSION_MAJOR AND LLVM_FIND_VERSION_MINOR)
if (LLVM_INSTALL_DIR)
find_program(CLANG_EXECUTABLE
NAMES clang-${LLVM_VERSION_NODOT} clang-${LLVM_VERSION_NOPATCH} clang
PATHS ${LLVM_INSTALL_DIR} NO_DEFAULT_PATH)
find_program(LLVM_AS_EXECUTABLE
NAMES llvm-as-${LLVM_VERSION_NODOT} llvm-as-${LLVM_VERSION_NOPATCH} llvm-as
PATHS ${LLVM_INSTALL_DIR} NO_DEFAULT_PATH)
find_program(LLVM_LINK_EXECUTABLE
NAMES llvm-link-${LLVM_VERSION_NODOT} llvm-link-${LLVM_VERSION_NOPATCH} llvm-link
PATHS ${LLVM_INSTALL_DIR} NO_DEFAULT_PATH)
else (LLVM_INSTALL_DIR)
find_program(CLANG_EXECUTABLE
NAMES clang-${LLVM_VERSION_NODOT} clang-${LLVM_VERSION_NOPATCH} clang)
find_program(LLVM_AS_EXECUTABLE
NAMES llvm-as-${LLVM_VERSION_NODOT} llvm-as-${LLVM_VERSION_NOPATCH} llvm-as)
find_program(LLVM_LINK_EXECUTABLE
NAMES llvm-link-${LLVM_VERSION_NODOT} llvm-link-${LLVM_VERSION_NOPATCH} llvm-link)
endif (LLVM_INSTALL_DIR)
execute_process(
COMMAND ${LLVM_CONFIG_EXECUTABLE} --includedir
OUTPUT_VARIABLE LLVM_INCLUDE_DIR
OUTPUT_STRIP_TRAILING_WHITESPACE
)
execute_process(
COMMAND ${LLVM_CONFIG_EXECUTABLE} --libdir
OUTPUT_VARIABLE LLVM_LIBRARY_DIR
OUTPUT_STRIP_TRAILING_WHITESPACE
)
execute_process(
COMMAND ${LLVM_CONFIG_EXECUTABLE} --cppflags
OUTPUT_VARIABLE LLVM_CFLAGS
OUTPUT_STRIP_TRAILING_WHITESPACE
)
execute_process(
COMMAND ${LLVM_CONFIG_EXECUTABLE} --ldflags
OUTPUT_VARIABLE LLVM_LDFLAGS
OUTPUT_STRIP_TRAILING_WHITESPACE
)
execute_process(
COMMAND ${LLVM_CONFIG_EXECUTABLE} --libs
OUTPUT_VARIABLE LLVM_MODULE_LIBS
OUTPUT_STRIP_TRAILING_WHITESPACE
)
if (LLVM_VERSION_NODOT VERSION_GREATER 34)
execute_process(
COMMAND ${LLVM_CONFIG_EXECUTABLE} --system-libs
OUTPUT_VARIABLE LLVM_SYSTEM_LIBS_ORIG
OUTPUT_STRIP_TRAILING_WHITESPACE
)
if (LLVM_SYSTEM_LIBS_ORIG)
string(REGEX REPLACE " *\n" "" LLVM_SYSTEM_LIBS ${LLVM_SYSTEM_LIBS_ORIG})
endif (LLVM_SYSTEM_LIBS_ORIG)
endif (LLVM_VERSION_NODOT VERSION_GREATER 34)
macro(add_one_lib name)
FIND_LIBRARY(CLANG_LIB
NAMES ${name}
PATHS ${LLVM_LIBRARY_DIR} NO_DEFAULT_PATH)
set(CLANG_LIBRARIES ${CLANG_LIBRARIES} ${CLANG_LIB})
unset(CLANG_LIB CACHE)
endmacro()
#Assume clang lib path same as llvm lib path
add_one_lib("clangCodeGen")
add_one_lib("clangFrontend")
add_one_lib("clangSerialization")
add_one_lib("clangDriver")
add_one_lib("clangSema")
add_one_lib("clangStaticAnalyzerFrontend")
add_one_lib("clangStaticAnalyzerCheckers")
add_one_lib("clangStaticAnalyzerCore")
add_one_lib("clangAnalysis")
add_one_lib("clangEdit")
add_one_lib("clangAST")
add_one_lib("clangParse")
add_one_lib("clangSema")
add_one_lib("clangLex")
add_one_lib("clangBasic")
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