Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/cmake/modules/ChooseMSVCCRT.cmake

@@ -1,106 +0,0 @@
-# The macro choose_msvc_crt() takes a list of possible
-# C runtimes to choose from, in the form of compiler flags,
-# to present to the user. (MTd for /MTd, etc)
-#
-# The macro is invoked at the end of the file.
-#
-# CMake already sets CRT flags in the CMAKE_CXX_FLAGS_* and
-# CMAKE_C_FLAGS_* variables by default. To let the user
-# override that for each build type:
-# 1. Detect which CRT is already selected, and reflect this in
-# LLVM_USE_CRT_* so the user can have a better idea of what
-# changes they're making.
-# 2. Replace the flags in both variables with the new flag via a regex.
-# 3. set() the variables back into the cache so the changes
-# are user-visible.
-
-### Helper macros: ###
-macro(make_crt_regex regex crts)
-  set(${regex} "")
-  foreach(crt ${${crts}})
-    # Trying to match the beginning or end of the string with stuff
-    # like [ ^]+ didn't work, so use a bunch of parentheses instead.
-    set(${regex} "${${regex}}|(^| +)/${crt}($| +)")
-  endforeach(crt)
-  string(REGEX REPLACE "^\\|" "" ${regex} "${${regex}}")
-endmacro(make_crt_regex)
-
-macro(get_current_crt crt_current regex flagsvar)
-  # Find the selected-by-CMake CRT for each build type, if any.
-  # Strip off the leading slash and any whitespace.
-  string(REGEX MATCH "${${regex}}" ${crt_current} "${${flagsvar}}")
-  string(REPLACE "/" " " ${crt_current} "${${crt_current}}")
-  string(STRIP "${${crt_current}}" ${crt_current})
-endmacro(get_current_crt)
-
-# Replaces or adds a flag to a variable.
-# Expects 'flag' to be padded with spaces.
-macro(set_flag_in_var flagsvar regex flag)
-  string(REGEX MATCH "${${regex}}" current_flag "${${flagsvar}}")
-  if("${current_flag}" STREQUAL "")
-    set(${flagsvar} "${${flagsvar}}${${flag}}")
-  else()
-    string(REGEX REPLACE "${${regex}}" "${${flag}}" ${flagsvar} "${${flagsvar}}")
-  endif()
-  string(STRIP "${${flagsvar}}" ${flagsvar})
-  # Make sure this change gets reflected in the cache/gui.
-  # CMake requires the docstring parameter whenever set() touches the cache,
-  # so get the existing docstring and re-use that.
-  get_property(flagsvar_docs CACHE ${flagsvar} PROPERTY HELPSTRING)
-  set(${flagsvar} "${${flagsvar}}" CACHE STRING "${flagsvar_docs}" FORCE)
-endmacro(set_flag_in_var)
-
-
-macro(choose_msvc_crt MSVC_CRT)
-  if(LLVM_USE_CRT)
-    message(FATAL_ERROR
-      "LLVM_USE_CRT is deprecated. Use the CMAKE_BUILD_TYPE-specific
-variables (LLVM_USE_CRT_DEBUG, etc) instead.")
-  endif()
-
-  make_crt_regex(MSVC_CRT_REGEX ${MSVC_CRT})
-
-  foreach(build_type ${CMAKE_CONFIGURATION_TYPES} ${CMAKE_BUILD_TYPE})
-    string(TOUPPER "${build_type}" build)
-    if (NOT LLVM_USE_CRT_${build})
-      get_current_crt(LLVM_USE_CRT_${build}
-        MSVC_CRT_REGEX
-        CMAKE_CXX_FLAGS_${build})
-      set(LLVM_USE_CRT_${build}
-        "${LLVM_USE_CRT_${build}}"
-        CACHE STRING "Specify VC++ CRT to use for ${build_type} configurations."
-        FORCE)
-      set_property(CACHE LLVM_USE_CRT_${build}
-        PROPERTY STRINGS ;${${MSVC_CRT}})
-    endif(NOT LLVM_USE_CRT_${build})
-  endforeach(build_type)
-
-  foreach(build_type ${CMAKE_CONFIGURATION_TYPES} ${CMAKE_BUILD_TYPE})
-    string(TOUPPER "${build_type}" build)
-    if ("${LLVM_USE_CRT_${build}}" STREQUAL "")
-      set(flag_string " ")
-    else()
-      set(flag_string " /${LLVM_USE_CRT_${build}} ")
-      list(FIND ${MSVC_CRT} ${LLVM_USE_CRT_${build}} idx)
-      if (idx LESS 0)
-        message(FATAL_ERROR
-          "Invalid value for LLVM_USE_CRT_${build}: ${LLVM_USE_CRT_${build}}. Valid options are one of: ${${MSVC_CRT}}")
-      endif (idx LESS 0)
-      message(STATUS "Using ${build_type} VC++ CRT: ${LLVM_USE_CRT_${build}}")
-    endif()
-    foreach(lang C CXX)
-      set_flag_in_var(CMAKE_${lang}_FLAGS_${build} MSVC_CRT_REGEX flag_string)
-    endforeach(lang)
-  endforeach(build_type)
-endmacro(choose_msvc_crt MSVC_CRT)
-
-
-# List of valid CRTs for MSVC
-set(MSVC_CRT
-  MD
-  MDd
-  MT
-  MTd)
-
-choose_msvc_crt(MSVC_CRT)
-