From 241f30fd53c9da05efbd4b320a3adaa44533e443 Mon Sep 17 00:00:00 2001
From: Christoph Junghans <junghans@lanl.gov>
Date: Sun, 15 Mar 2020 13:34:38 -0600
Subject: [PATCH] added missing CheckIfNinjaSupportsFortran.cmake

---
 .../Modules/CheckIfNinjaSupportsFortran.cmake | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 cmake/Modules/CheckIfNinjaSupportsFortran.cmake

diff --git a/cmake/Modules/CheckIfNinjaSupportsFortran.cmake b/cmake/Modules/CheckIfNinjaSupportsFortran.cmake
new file mode 100644
index 0000000000..62d33036a5
--- /dev/null
+++ b/cmake/Modules/CheckIfNinjaSupportsFortran.cmake
@@ -0,0 +1,21 @@
+# ninja-build<1.10 does not support fortran.
+if(CMAKE_GENERATOR STREQUAL "Ninja")
+  set(CMAKE_GENERATOR_SUPPORT_FORTRAN FALSE)
+  execute_process(COMMAND "${CMAKE_MAKE_PROGRAM}" --version
+    OUTPUT_VARIABLE NINJA_VERSION
+    OUTPUT_STRIP_TRAILING_WHITESPACE
+    RESULT_VARIABLE _Ninja_version_result
+  )
+  if(_Ninja_version_result)
+    message(WARNING "Unable to determine ninja version: ${_Ninja_version_result}, assuming fortran isn't supported")
+  elseif(NINJA_VERSION VERSION_LESS "1.10")
+    message(WARNING "Ninja build tool too old, to compile Fortran code, please install ninja-1.10 or newer")
+  else()
+    set(CMAKE_GENERATOR_SUPPORT_FORTRAN TRUE)
+  endif()
+else()
+  set(CMAKE_GENERATOR_SUPPORT_FORTRAN TRUE)
+  if(NOT CMAKE_GENERATOR STREQUAL "Unix Makefiles")
+    message(WARNING "Assuming fortran is supported for ${CMAKE_GENERATOR}")
+  endif()
+endif()