| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # to you 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. |
| # |
| # Sets COMPILER_FAMILY to 'clang' or 'gcc' or 'msvc' |
| # Sets COMPILER_VERSION to the version |
| if(NOT MSVC) |
| set(COMPILER_GET_VERSION_SWITCH "-v") |
| endif() |
| |
| execute_process(COMMAND "${CMAKE_CXX_COMPILER}" ${COMPILER_GET_VERSION_SWITCH} |
| OUTPUT_VARIABLE COMPILER_VERSION_FULL |
| ERROR_VARIABLE COMPILER_VERSION_FULL) |
| message(STATUS "Compiler id: ${CMAKE_CXX_COMPILER_ID}") |
| string(TOLOWER "${COMPILER_VERSION_FULL}" COMPILER_VERSION_FULL_LOWER) |
| |
| if(MSVC) |
| set(COMPILER_FAMILY "msvc") |
| if ("${COMPILER_VERSION_FULL}" MATCHES ".*Microsoft \\(R\\) C/C\\+\\+ Optimizing Compiler Version 19.*x64") |
| string(REGEX REPLACE ".*Optimizing Compiler Version ([0-9]+\\.[0-9]+\\.[0-9]+\\.[0-9]+).*" "\\1" |
| COMPILER_VERSION "${COMPILER_VERSION_FULL}") |
| elseif(NOT "${COMPILER_VERSION_FULL}" STREQUAL "") |
| message(FATAL_ERROR "Not supported MSVC compiler:\n${COMPILER_VERSION_FULL}\n" |
| "Supported MSVC versions: Visual Studio 2015 2017 x64") |
| endif() |
| |
| # clang on Linux and Mac OS X before 10.9 |
| elseif("${COMPILER_VERSION_FULL}" MATCHES ".*clang version.*") |
| set(COMPILER_FAMILY "clang") |
| string(REGEX REPLACE ".*clang version ([0-9]+\\.[0-9]+).*" "\\1" |
| COMPILER_VERSION "${COMPILER_VERSION_FULL}") |
| # clang on Mac OS X 10.9 and later |
| elseif("${COMPILER_VERSION_FULL}" MATCHES ".*based on LLVM.*") |
| set(COMPILER_FAMILY "clang") |
| string(REGEX REPLACE ".*based on LLVM ([0-9]+\\.[0.9]+).*" "\\1" |
| COMPILER_VERSION "${COMPILER_VERSION_FULL}") |
| |
| # clang on Mac OS X, XCode 7+. |
| elseif("${COMPILER_VERSION_FULL}" MATCHES ".*clang-.*") |
| set(COMPILER_FAMILY "clang") |
| |
| # gcc |
| elseif("${COMPILER_VERSION_FULL_LOWER}" MATCHES ".*gcc[ -]version.*") |
| set(COMPILER_FAMILY "gcc") |
| string(REGEX REPLACE ".*gcc[ -]version ([0-9\\.]+).*" "\\1" |
| COMPILER_VERSION "${COMPILER_VERSION_FULL_LOWER}") |
| else() |
| message(FATAL_ERROR "Unknown compiler. Version info:\n${COMPILER_VERSION_FULL}") |
| endif() |
| message("Selected compiler ${COMPILER_FAMILY} ${COMPILER_VERSION}") |