From ef513fe3d1d864d865d7143699834228988a7cd7 Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Fri, 5 Mar 2021 08:08:16 -0500
Subject: [PATCH] Cray: Enable explicit Fortran preprocessing for Ninja
 generator

Cray 11.0 adds support for preprocessing with output written to a
specified file (instead of always next to the source).  Use it to
enable Cray Fortran with the Ninja generator.

Patch-by: James Elliott
Fixes: #20731
---
 Modules/Compiler/Cray-Fortran.cmake | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Modules/Compiler/Cray-Fortran.cmake b/Modules/Compiler/Cray-Fortran.cmake
index 696ae76074..0d5e1c7679 100644
--- a/Modules/Compiler/Cray-Fortran.cmake
+++ b/Modules/Compiler/Cray-Fortran.cmake
@@ -19,3 +19,7 @@ else()
   set(CMAKE_Fortran_COMPILE_OPTIONS_PREPROCESS_ON "-eZ")
   set(CMAKE_Fortran_COMPILE_OPTIONS_PREPROCESS_OFF "-dZ")
 endif()
+
+if (NOT CMAKE_Fortran_COMPILER_VERSION VERSION_LESS 11.0)
+  set(CMAKE_Fortran_PREPROCESS_SOURCE "<CMAKE_Fortran_COMPILER> -o <PREPROCESSED_SOURCE> <DEFINES> <INCLUDES> <FLAGS> -eP <SOURCE>")
+endif()
-- 
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