From c3635e502c9804fc0ab781b9f20e07449d4e6c23 Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Mon, 27 Aug 2018 10:14:26 -0400
Subject: Tests: Add RunCMake "prep" step

Give tests a chance to write content to the build tree before CMake
runs on it.
---
 Tests/RunCMake/RunCMake.cmake | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Tests/RunCMake/RunCMake.cmake b/Tests/RunCMake/RunCMake.cmake
index c076ad9..4bacd96 100644
--- a/Tests/RunCMake/RunCMake.cmake
+++ b/Tests/RunCMake/RunCMake.cmake
@@ -45,6 +45,11 @@ function(run_cmake test)
     file(REMOVE_RECURSE "${RunCMake_TEST_BINARY_DIR}")
   endif()
   file(MAKE_DIRECTORY "${RunCMake_TEST_BINARY_DIR}")
+  if(RunCMake-prep-file AND EXISTS ${top_src}/${RunCMake-prep-file})
+    include(${top_src}/${RunCMake-prep-file})
+  else()
+    include(${top_src}/${test}-prep.cmake OPTIONAL)
+  endif()
   if(NOT DEFINED RunCMake_TEST_OPTIONS)
     set(RunCMake_TEST_OPTIONS "")
   endif()
-- 
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