commit e009e28d9cd774f5e436a8a63fef6a03e4f9904f
author swift-ci <swift-ci@users.noreply.github.com> Thu Mar 16 09:40:47 2017 -0700
committer GitHub <noreply@github.com> Thu Mar 16 09:40:47 2017 -0700
tree cba40372a6844cde6b40c7f4319c1ab9d1c3d741
parent 6ff948f6515319fc91817f77e2e009e6f70bc227
parent 9907502edee96661afcf73277297546cc32224b6

Merge pull request #8151 from hughbe/permissive-msvc

cmake/modules/SwiftSharedCMakeConfig.cmake

diff --git a/cmake/modules/SwiftSharedCMakeConfig.cmake b/cmake/modules/SwiftSharedCMakeConfig.cmake
index b8adb2b..1c38d21 100644
--- a/cmake/modules/SwiftSharedCMakeConfig.cmake
+++ b/cmake/modules/SwiftSharedCMakeConfig.cmake
@@ -279,6 +279,8 @@
   # the repository for IDE features such as #pragma mark "Title".
   if("${CMAKE_C_COMPILER_ID}" STREQUAL "MSVC")
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /wd4068")
+    check_cxx_compiler_flag("/permissive-" CXX_SUPPORTS_PERMISSIVE_FLAG)
+    append_if(CXX_SUPPORTS_PERMISSIVE_FLAG "/permissive-" CMAKE_CXX_FLAGS)
   endif()
 
   # Disallow calls to objc_msgSend() with no function pointer cast.