| cmake_minimum_required(VERSION 2.8) |
| project(CheckCXXCompilerFlag) |
| |
| message(STATUS "CTEST_FULL_OUTPUT (Avoid ctest truncation of output)") |
| set(CMAKE_VERBOSE_MAKEFILE 1) |
| |
| macro(TEST_FAIL value msg) |
| if (${value}) |
| message (SEND_ERROR "Test fail:" ${msg} ${Out} ) |
| endif () |
| endmacro() |
| |
| macro(TEST_PASS value msg) |
| if (NOT ${value}) |
| message (SEND_ERROR "Test fail:" ${msg} ${Out} ) |
| endif () |
| endmacro() |
| |
| if(CMAKE_COMPILER_IS_GNUCXX) |
| exec_program(${CMAKE_C_COMPILER} ARGS --version OUTPUT_VARIABLE _gcc_version_info) |
| string (REGEX MATCH "[345]\\.[0-9]\\.[0-9]" _gcc_version "${_gcc_version_info}") |
| # gcc on mac just reports: "gcc (GCC) 3.3 20030304 ..." without the |
| # patch level, handle this here: |
| if(NOT _gcc_version) |
| string (REGEX REPLACE ".*\\(GCC\\).* ([34]\\.[0-9]) .*" "\\1.0" _gcc_version "${_gcc_version_info}") |
| endif() |
| endif() |
| |
| if(CMAKE_CXX_COMPILER_ID MATCHES Clang) |
| exec_program(${CMAKE_CXX_COMPILER} ARGS --version OUTPUT_VARIABLE _clang_version_info) |
| string (REGEX REPLACE ".*version ([0-9]\\.[0-9]).*" "\\1" _clang_version "${_clang_version_info}") |
| endif() |
| |
| if(CMAKE_CXX_COMPILER_ID MATCHES Intel) |
| exec_program(${CMAKE_CXX_COMPILER} ARGS -V OUTPUT_VARIABLE _intel_version_info) |
| string (REGEX REPLACE ".*Version ([0-9]+(\\.[0-9]+)+).*" "\\1" _intel_version "${_intel_version_info}") |
| endif() |
| |
| message("Platform:\n WIN32: ${WIN32}\n UNIX: ${UNIX}\n APPLE: ${APPLE}\n MINGW: ${MINGW}\n CYGWIN: ${CYGWIN}\n" |
| " MSVC: ${MSVC}\n MSVC60: ${MSVC60}\n MSVC70: ${MSVC70}\n MSVC71: ${MSVC71}\n MSVC80: ${MSVC80}\n MSVC90: ${MSVC90}\n MSVC10: ${MSVC10}\n" |
| " GCC: ${_gcc_version}\n" |
| " Clang: ${_clang_version}\n" |
| " Intel: ${_intel_version}\n" |
| ) |
| |
| include(CheckCXXCompilerFlag) |
| |
| check_cxx_compiler_flag(-fvisibility=hidden HAS_HIDDEN_VISIBILITY) |
| |
| message("HAS_HIDDEN_VISIBILITY: ${HAS_HIDDEN_VISIBILITY}\n\nCOMPILE OUTPUT:\n${OUTPUT}") |
| |
| if(CMAKE_COMPILER_IS_GNUCXX) |
| if(NOT WIN32) |
| # test_pass(HAS_HIDDEN_VISIBILITY "GCC should support hidden visibility, but does not.") |
| endif() |
| else() |
| message("Unhandled Platform") |
| endif() |
| |
| if(CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang") |
| check_cxx_compiler_flag("-x c++" HAVE_X_CXX) |
| if(NOT HAVE_X_CXX) |
| message(FATAL_ERROR "${CMAKE_CXX_COMPILER_ID} compiler flag '-x c++' check failed") |
| endif() |
| endif() |