| # Copyright 2014 Cloudera, Inc. |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| # Find LLVM |
| # |
| # It defines the following variables |
| # LLVM_FOUND - True if llvm found. |
| # LLVM_INCLUDE_DIRS - where to find llvm include files |
| # LLVM_LIBRARY_DIRS - where to find llvm libs |
| # LLVM_CFLAGS - llvm compiler flags |
| # LLVM_LDFLAGS - llvm linker flags |
| # LLVM_LIBS - list of llvm libs for working with modules. |
| |
| if(NOT DEFINED CLANG_ROOT) |
| set(CLANG_ROOT $ENV{CLANG_ROOT}) |
| endif() |
| |
| foreach(prog_name llvm-config llvm-config-3.4) |
| find_program(LLVM_CONFIG_EXECUTABLE ${prog_name} DOC "${prog_name} executable" |
| HINTS ${CLANG_ROOT}/bin) |
| if(LLVM_CONFIG_EXECUTABLE) |
| break() |
| endif() |
| endforeach(prog_name) |
| |
| if(LLVM_CONFIG_EXECUTABLE) |
| message(STATUS "LLVM llvm-config found at: ${LLVM_CONFIG_EXECUTABLE}") |
| elseif(LLVM_FIND_REQUIRED) |
| message(FATAL_ERROR "Could NOT find llvm-config executable") |
| endif() |
| |
| execute_process( |
| COMMAND ${LLVM_CONFIG_EXECUTABLE} --version |
| OUTPUT_VARIABLE LLVM_VERSION |
| OUTPUT_STRIP_TRAILING_WHITESPACE |
| ) |
| |
| string(REGEX REPLACE "^([0-9]+)\\.([0-9]+).*" "\\1" LLVM_VERSION_MAJOR |
| "${LLVM_VERSION}") |
| |
| string(REGEX REPLACE "^([0-9]+)\\.([0-9]+).*" "\\2" LLVM_VERSION_MINOR |
| "${LLVM_VERSION}") |
| |
| execute_process( |
| COMMAND ${LLVM_CONFIG_EXECUTABLE} --includedir |
| OUTPUT_VARIABLE LLVM_INCLUDE_DIRS |
| OUTPUT_STRIP_TRAILING_WHITESPACE |
| ) |
| |
| execute_process( |
| COMMAND ${LLVM_CONFIG_EXECUTABLE} --libdir |
| OUTPUT_VARIABLE LLVM_LIBRARY_DIRS |
| 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 ${LLVM_FIND_COMPONENTS} |
| OUTPUT_VARIABLE LLVM_LIBS |
| OUTPUT_STRIP_TRAILING_WHITESPACE |
| ) |
| |
| set(LLVM_FOUND TRUE) |