[PATCH] D125263: [CMake][MSVC] Use `/permissive-` as MSVC equivalent to `-pedantic`

[مهدي شينون (Mehdi Chinoune) via Phabricator via llvm-commits]

MehdiChinoune created this revision.
MehdiChinoune added a reviewer: LLVM.
MehdiChinoune added a project: LLVM.
Herald added a subscriber: mgorny.
Herald added a project: All.
MehdiChinoune requested review of this revision.
Herald added a subscriber: llvm-commits.

see: https://docs.microsoft.com/en-us/cpp/build/reference/permissive-standards-conformance


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D125263

Files:
  llvm/cmake/modules/HandleLLVMOptions.cmake


Index: llvm/cmake/modules/HandleLLVMOptions.cmake
===================================================================
--- llvm/cmake/modules/HandleLLVMOptions.cmake
+++ llvm/cmake/modules/HandleLLVMOptions.cmake
@@ -681,7 +681,7 @@
     string(REGEX REPLACE " /W[0-4]" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
 
     if (LLVM_ENABLE_PEDANTIC)
-      # No MSVC equivalent available
+      append("/permissive-" CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
     endif (LLVM_ENABLE_PEDANTIC)
   endif (LLVM_ENABLE_WARNINGS)
 


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