From 72d27964b92ddb4d8ee85e32a27d0e56d642ec1c Mon Sep 17 00:00:00 2001
From: Isuru Fernando <isuruf@gmail.com>
Date: Mon, 30 Oct 2017 19:51:23 -0500
Subject: Flang: Identify as simulating MSVC on Windows

In `CMakeFortranCompilerId.F.in`, take the `_MSC_VER` out of the
Intel-specific block so it will trigger for other compilers like Flang.
In `Compiler/Clang.cmake`, switch off Fortran too.
---
 Modules/CMakeFortranCompilerId.F.in | 41 ++++++++++++++++++-------------------
 Modules/Compiler/Clang.cmake        |  3 ++-
 2 files changed, 22 insertions(+), 22 deletions(-)

diff --git a/Modules/CMakeFortranCompilerId.F.in b/Modules/CMakeFortranCompilerId.F.in
index 49789f1..da3d953 100644
--- a/Modules/CMakeFortranCompilerId.F.in
+++ b/Modules/CMakeFortranCompilerId.F.in
@@ -2,6 +2,26 @@
 #if 0
 ! Identify the compiler
 #endif
+#if defined(_MSC_VER)
+       PRINT *, 'INFO:simulate[MSVC]'
+# if _MSC_VER >= 1900
+       PRINT *, 'INFO:simulate_version[019.00]'
+# elif _MSC_VER >= 1800
+       PRINT *, 'INFO:simulate_version[018.00]'
+# elif _MSC_VER >= 1700
+       PRINT *, 'INFO:simulate_version[017.00]'
+# elif _MSC_VER >= 1600
+       PRINT *, 'INFO:simulate_version[016.00]'
+# elif _MSC_VER >= 1500
+       PRINT *, 'INFO:simulate_version[015.00]'
+# elif _MSC_VER >= 1400
+       PRINT *, 'INFO:simulate_version[014.00]'
+# elif _MSC_VER >= 1310
+       PRINT *, 'INFO:simulate_version[013.01]'
+# else
+       PRINT *, 'INFO:simulate_version[013.00]'
+# endif
+#endif
 #if defined(__INTEL_COMPILER) || defined(__ICC)
         PRINT *, 'INFO:compiler[Intel]'
 # define COMPILER_VERSION_MAJOR DEC(__INTEL_COMPILER/100)
@@ -14,27 +34,6 @@
 # if defined(__INTEL_COMPILER_BUILD_DATE)
 #  define COMPILER_VERSION_TWEAK DEC(__INTEL_COMPILER_BUILD_DATE)
 # endif
-
-# if defined(_MSC_VER)
-        PRINT *, 'INFO:simulate[MSVC]'
-#  if _MSC_VER >= 1900
-        PRINT *, 'INFO:simulate_version[019.00]'
-#  elif _MSC_VER >= 1800
-        PRINT *, 'INFO:simulate_version[018.00]'
-#  elif _MSC_VER >= 1700
-        PRINT *, 'INFO:simulate_version[017.00]'
-#  elif _MSC_VER >= 1600
-        PRINT *, 'INFO:simulate_version[016.00]'
-#  elif _MSC_VER >= 1500
-        PRINT *, 'INFO:simulate_version[015.00]'
-#  elif _MSC_VER >= 1400
-        PRINT *, 'INFO:simulate_version[014.00]'
-#  elif _MSC_VER >= 1310
-        PRINT *, 'INFO:simulate_version[013.01]'
-#  else
-        PRINT *, 'INFO:simulate_version[013.00]'
-#  endif
-# endif
 #elif defined(__SUNPRO_F95)
         PRINT *, 'INFO:compiler[SunPro]'
 # define COMPILER_VERSION_MAJOR HEX(__SUNPRO_F95>>8)
diff --git a/Modules/Compiler/Clang.cmake b/Modules/Compiler/Clang.cmake
index 9f5e921..7ce1adb 100644
--- a/Modules/Compiler/Clang.cmake
+++ b/Modules/Compiler/Clang.cmake
@@ -11,7 +11,8 @@ set(__COMPILER_CLANG 1)
 include(Compiler/CMakeCommonCompilerMacros)
 
 if("x${CMAKE_C_SIMULATE_ID}" STREQUAL "xMSVC"
-    OR "x${CMAKE_CXX_SIMULATE_ID}" STREQUAL "xMSVC")
+    OR "x${CMAKE_CXX_SIMULATE_ID}" STREQUAL "xMSVC"
+    OR "x${CMAKE_Fortran_SIMULATE_ID}" STREQUAL "xMSVC")
   macro(__compiler_clang lang)
   endmacro()
 else()
-- 
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