diff options
Diffstat (limited to 'share/cmake-3.18/Modules/Internal/CMakeCheckCompilerFlag.cmake')
-rw-r--r-- | share/cmake-3.18/Modules/Internal/CMakeCheckCompilerFlag.cmake | 158 |
1 files changed, 0 insertions, 158 deletions
diff --git a/share/cmake-3.18/Modules/Internal/CMakeCheckCompilerFlag.cmake b/share/cmake-3.18/Modules/Internal/CMakeCheckCompilerFlag.cmake deleted file mode 100644 index 9c8dfb6..0000000 --- a/share/cmake-3.18/Modules/Internal/CMakeCheckCompilerFlag.cmake +++ /dev/null @@ -1,158 +0,0 @@ -# Distributed under the OSI-approved BSD 3-Clause License. See accompanying -# file Copyright.txt or https://cmake.org/licensing for details. - -#[=[ - -NOTE: This function is used internally by CMake. Projects should not include - this file directly. - -The cmake_check_compiler_flag() function can be used to compile and link a -source file to check whether a specific compiler or linker flag is supported. -The function does not use the try_compile() command so as to avoid infinite -recursion. It may not work for all platforms or toolchains, the caller is -responsible for ensuring it is only called in valid situations. - - cmake_check_compiler_flag(<lang> <flag> <result> - [SRC_EXT <ext>] [COMMAND_PATTERN <pattern>] - [FAIL_REGEX <regex> ...] - [OUTPUT_VARIABLE <output>]) - -Parameters: - <lang> - Language to check. - <flag> - The flag to add to the compile/link command line. - <result> - Boolean output variable. It will be stored in the cache as an - internal variable and if true, will cause future tests that assign - to that variable to be bypassed. - -Optional parameters: - SRC_EXT - Overrides the extension of the source file used for the - check. Defaults are 'c' (C), 'cxx' (CXX), 'F' (Fortran). - COMMAND_PATTERN - Pattern to be used for the command line. The default is - '<FLAG> -o <OUTPUT> <SOURCE>' - FAIL_REGEX - List of additional regular expressions that, if matched by - the output, give a failed result for the check. A common - set of regular expressions will be included in addition to - those given by FAIL_REGEX. - OUTPUT_VARIABLE - Set <output> variable with details about any error. -#]=] - -include_guard(GLOBAL) -include(CMakeCheckCompilerFlagCommonPatterns) - -function(CMAKE_CHECK_COMPILER_FLAG lang flag result) - # Cache results between runs similar to check_<lang>_source_compiles() - if(DEFINED ${result}) - return() - endif() - - set(comment "Is the '${flag}' option(s) supported") - string(REPLACE ";" " " comment "${comment}") - - if (NOT lang MATCHES "^(C|CXX|Fortran|ASM)$") - # other possible languages are not supported - # log message to keep trace of this problem... - file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log - "Function 'CMAKE_CHECK_COMPILER_FLAG' called with unsupported language: ${lang}\n") - set(${result} FALSE CACHE INTERNAL ${comment}) - return() - endif() - if (lang STREQUAL "ASM") - # assume ASM compiler is a multi-language compiler, so supports C language as well - set(check_lang C) - else() - set(check_lang ${lang}) - endif() - - cmake_parse_arguments(CCCF "" "SRC_EXT;COMMAND_PATTERN;OUTPUT_VARIABLE" "FAIL_REGEX" ${ARGN}) - - if (NOT CCCF_COMMAND_PATTERN) - set (CCCF_COMMAND_PATTERN "<FLAG> -o <OUTPUT> <SOURCE>") - endif() - - list (APPEND CCCF_FAIL_REGEX "argument unused during compilation") # clang - if (check_lang STREQUAL "C") - list(APPEND CCCF_FAIL_REGEX - "command line option .* is valid for .* but not for C") # GNU - elseif(check_lang STREQUAL "CXX") - list(APPEND CCCF_FAIL_REGEX - "command line option .* is valid for .* but not for C\\+\\+") # GNU - elseif(check_lang STREQUAL "Fortran") - list(APPEND CCCF_FAIL_REGEX - "command line option .* is valid for .* but not for Fortran") # GNU - endif() - - # Add patterns for common errors - check_compiler_flag_common_patterns(COMPILER_FLAG_COMMON_PATTERNS) - foreach(arg IN LISTS COMPILER_FLAG_COMMON_PATTERNS) - if(arg MATCHES "^FAIL_REGEX$") - continue() - endif() - list(APPEND CCCF_FAIL_REGEX "${arg}") - endforeach() - - if(NOT CCCF_SRC_EXT) - if (check_lang STREQUAL "C") - set(CCCF_SRC_EXT c) - elseif(check_lang STREQUAL "CXX") - set(CCCF_SRC_EXT cxx) - elseif(check_lang STREQUAL "Fortran") - set(CCCF_SRC_EXT F) - endif() - endif() - - if (CCCF_OUTPUT_VARIABLE) - unset(${CCCF_OUTPUT_VARIABLE} PARENT_SCOPE) - endif() - - # Compute the directory in which to run the test. - set(COMPILER_FLAG_DIR "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp") - # Compute source and output files. - set(COMPILER_FLAG_SRC - "${COMPILER_FLAG_DIR}/CompilerFlag${lang}.${CCCF_SRC_EXT}") - if(check_lang STREQUAL "Fortran") - file(WRITE "${COMPILER_FLAG_SRC}" - " program simple\n end program simple\n") - else() - file(WRITE "${COMPILER_FLAG_SRC}" "int main (void)\n{ return 0; }\n") - endif() - get_filename_component(COMPILER_FLAG_EXE "${COMPILER_FLAG_SRC}" NAME_WE) - string(APPEND COMPILER_FLAG_EXE "${CMAKE_EXECUTABLE_SUFFIX}") - - # Build command line - separate_arguments(CCCF_COMMAND_PATTERN UNIX_COMMAND - "${CCCF_COMMAND_PATTERN}") - list(TRANSFORM CCCF_COMMAND_PATTERN REPLACE "<SOURCE>" "${COMPILER_FLAG_SRC}") - list(TRANSFORM CCCF_COMMAND_PATTERN REPLACE "<OUTPUT>" "${COMPILER_FLAG_EXE}") - list(TRANSFORM CCCF_COMMAND_PATTERN REPLACE "<FLAG>" "${flag}") - - execute_process( - COMMAND "${CMAKE_COMMAND}" -E env LC_ALL=C LC_MESSAGES=C LANG=C - "${CMAKE_${lang}_COMPILER}" ${CCCF_COMMAND_PATTERN} - WORKING_DIRECTORY "${COMPILER_FLAG_DIR}" - OUTPUT_VARIABLE COMPILER_FLAG_OUTPUT - ERROR_VARIABLE COMPILER_FLAG_OUTPUT - RESULT_VARIABLE COMPILER_FLAG_RESULT) - - # Record result in the cache so we can avoid re-testing every CMake run - if (COMPILER_FLAG_RESULT) - set(${result} FALSE CACHE INTERNAL ${comment}) - else() - foreach(regex IN LISTS CCCF_FAIL_REGEX) - if(COMPILER_FLAG_OUTPUT MATCHES "${regex}") - set(${result} FALSE CACHE INTERNAL ${comment}) - endif() - endforeach() - endif() - if (DEFINED ${result}) - file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log - "Determining if the ${flag} option " - "is supported for ${lang} language failed with the following output:\n" - "${COMPILER_FLAG_OUTPUT}\n") - if (CCCF_OUTPUT_VARIABLE) - set(${CCCF_OUTPUT_VARIABLE} "${COMPILER_FLAG_OUTPUT}" PARENT_SCOPE) - endif() - return() - endif() - - set(${result} TRUE CACHE INTERNAL ${comment}) -endfunction() |