zig/cmake/Findllvm.cmake
Andrew Kelley 7843c96df8
build: make sure LLVM is exactly correct
* check the version to be the correct major version
 * ensure that it has all the default targets enabled
2019-02-07 12:18:01 -05:00

120 lines
3.7 KiB
CMake

# Copyright (c) 2014 Andrew Kelley
# This file is MIT licensed.
# See http://opensource.org/licenses/MIT
# LLVM_FOUND
# LLVM_INCLUDE_DIRS
# LLVM_LIBRARIES
# LLVM_LIBDIRS
find_program(LLVM_CONFIG_EXE
NAMES llvm-config-7 llvm-config-7.0 llvm-config70 llvm-config
PATHS
"/mingw64/bin"
"/c/msys64/mingw64/bin"
"c:/msys64/mingw64/bin"
"C:/Libraries/llvm-7.0.0/bin")
if ("${LLVM_CONFIG_EXE}" STREQUAL "LLVM_CONFIG_EXE-NOTFOUND")
message(FATAL_ERROR "unable to find llvm-config")
endif()
execute_process(
COMMAND ${LLVM_CONFIG_EXE} --version
OUTPUT_VARIABLE LLVM_CONFIG_VERSION
OUTPUT_STRIP_TRAILING_WHITESPACE)
if("${LLVM_CONFIG_VERSION}" VERSION_LESS 7)
message(FATAL_ERROR "expected LLVM 7.x but found ${LLVM_CONFIG_VERSION}")
endif()
if("${LLVM_CONFIG_VERSION}" VERSION_EQUAL 8)
message(FATAL_ERROR "expected LLVM 7.x but found ${LLVM_CONFIG_VERSION}")
endif()
if("${LLVM_CONFIG_VERSION}" VERSION_GREATER 8)
message(FATAL_ERROR "expected LLVM 7.x but found ${LLVM_CONFIG_VERSION}")
endif()
execute_process(
COMMAND ${LLVM_CONFIG_EXE} --targets-built
OUTPUT_VARIABLE LLVM_TARGETS_BUILT_SPACES
OUTPUT_STRIP_TRAILING_WHITESPACE)
string(REPLACE " " ";" LLVM_TARGETS_BUILT "${LLVM_TARGETS_BUILT_SPACES}")
function(NEED_TARGET TARGET_NAME)
list (FIND LLVM_TARGETS_BUILT "${TARGET_NAME}" _index)
if (${_index} EQUAL -1)
message(FATAL_ERROR "LLVM is missing target ${TARGET_NAME}. Zig requires LLVM to be built with all default targets enabled.")
endif()
endfunction(NEED_TARGET)
NEED_TARGET("AArch64")
NEED_TARGET("AMDGPU")
NEED_TARGET("ARM")
NEED_TARGET("BPF")
NEED_TARGET("Hexagon")
NEED_TARGET("Lanai")
NEED_TARGET("Mips")
NEED_TARGET("MSP430")
NEED_TARGET("NVPTX")
NEED_TARGET("PowerPC")
NEED_TARGET("Sparc")
NEED_TARGET("SystemZ")
NEED_TARGET("X86")
NEED_TARGET("XCore")
if(NOT(CMAKE_BUILD_TYPE STREQUAL "Debug") OR ZIG_STATIC)
execute_process(
COMMAND ${LLVM_CONFIG_EXE} --libfiles --link-static
OUTPUT_VARIABLE LLVM_LIBRARIES_SPACES
OUTPUT_STRIP_TRAILING_WHITESPACE)
string(REPLACE " " ";" LLVM_LIBRARIES "${LLVM_LIBRARIES_SPACES}")
execute_process(
COMMAND ${LLVM_CONFIG_EXE} --system-libs --link-static
OUTPUT_VARIABLE LLVM_SYSTEM_LIBS_SPACES
OUTPUT_STRIP_TRAILING_WHITESPACE)
string(REPLACE " " ";" LLVM_SYSTEM_LIBS "${LLVM_SYSTEM_LIBS_SPACES}")
execute_process(
COMMAND ${LLVM_CONFIG_EXE} --libdir --link-static
OUTPUT_VARIABLE LLVM_LIBDIRS_SPACES
OUTPUT_STRIP_TRAILING_WHITESPACE)
string(REPLACE " " ";" LLVM_LIBDIRS "${LLVM_LIBDIRS_SPACES}")
endif()
if(NOT LLVM_LIBRARIES)
execute_process(
COMMAND ${LLVM_CONFIG_EXE} --libs
OUTPUT_VARIABLE LLVM_LIBRARIES_SPACES
OUTPUT_STRIP_TRAILING_WHITESPACE)
string(REPLACE " " ";" LLVM_LIBRARIES "${LLVM_LIBRARIES_SPACES}")
execute_process(
COMMAND ${LLVM_CONFIG_EXE} --system-libs
OUTPUT_VARIABLE LLVM_SYSTEM_LIBS_SPACES
OUTPUT_STRIP_TRAILING_WHITESPACE)
string(REPLACE " " ";" LLVM_SYSTEM_LIBS "${LLVM_SYSTEM_LIBS_SPACES}")
execute_process(
COMMAND ${LLVM_CONFIG_EXE} --libdir
OUTPUT_VARIABLE LLVM_LIBDIRS_SPACES
OUTPUT_STRIP_TRAILING_WHITESPACE)
string(REPLACE " " ";" LLVM_LIBDIRS "${LLVM_LIBDIRS_SPACES}")
endif()
execute_process(
COMMAND ${LLVM_CONFIG_EXE} --includedir
OUTPUT_VARIABLE LLVM_INCLUDE_DIRS
OUTPUT_STRIP_TRAILING_WHITESPACE)
set(LLVM_LIBRARIES ${LLVM_LIBRARIES} ${LLVM_SYSTEM_LIBS})
if(NOT LLVM_LIBRARIES)
find_library(LLVM_LIBRARIES NAMES LLVM LLVM-7 LLVM-7.0)
endif()
link_directories("${CMAKE_PREFIX_PATH}/lib")
link_directories("${LLVM_LIBDIRS}")
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(LLVM DEFAULT_MSG LLVM_LIBRARIES LLVM_INCLUDE_DIRS)
mark_as_advanced(LLVM_INCLUDE_DIRS LLVM_LIBRARIES LLVM_LIBDIRS)