[PATCH 3/3] configure: Explicitly specify -fms-compatibility-version on Clang MSVC targets.

[Jacek Caban]

From: Jacek Caban

The exact version doesn't really matter, but we need to make sure that _MSC_VER is defined at all. Clang not always adds default version, so make sure it's specified.
---
 configure.ac | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index 7313fde9a4e..eba345d2c38 100644
--- a/configure.ac
+++ b/configure.ac
@@ -941,12 +941,13 @@ do
             esac
         fi
         case $llvm_target in
-          *windows) llvm_cflags="$llvm_cflags -Wl,-subsystem:console" ;;
+          *windows) llvm_cflags="$llvm_cflags -Wl,-subsystem:console"
+                    llvm_extra_cflags=" -fms-compatibility-version=19" ;;
         esac
         WINE_TRY_PE_CFLAGS([-target $llvm_target $llvm_cflags],
                            [target=$llvm_target
                             AS_VAR_SET([${wine_arch}_DELAYLOADFLAG],["-Wl,-delayload,"])
-                            AS_VAR_APPEND([${wine_arch}_EXTRACFLAGS],[" -target $target"])
+                            AS_VAR_APPEND([${wine_arch}_EXTRACFLAGS],[" -target $target$llvm_extra_cflags"])
                             CFLAGS="$CFLAGS -target $target $llvm_cflags"])
         AS_VAR_SET([${wine_arch}_TARGET],[$target])])
     AS_VAR_POPDEF([wine_cv_crosscc])