From 619546beaa829d012b30cfb83dadd166f05a4cfa Mon Sep 17 00:00:00 2001
From: Jean-Christophe Fillion-Robin <jchris.fillionr@kitware.com>
Date: Fri, 15 Dec 2023 02:40:13 -0500
Subject: [PATCH] ENH: Add "Autoscoper-CUDA" external project and build it if
 CUDA Toolkit is found

If SlicerAutoscoperM_CUDA_PATH env. variable is set, it is used to set the
CUDA_PATH env. variable itself used by "find_package(CUDA)" to initialize
the variable CUDA_TOOLKIT_ROOT_DIR passed to the "Autoscoper-CUDA" project.

List of Autoscoper changes:

$ git shortlog d476e2cbb..644473784 --no-merges
Jean-Christophe Fillion-Robin (2):
      COMP: Update cutil headers to fix build against SDK without cufft library
      COMP: Ensure Autoscoper inner-build is built with expected CUDA toolkit
---
 SuperBuild.cmake                          | 13 +++++++++++++
 SuperBuild/External_Autoscoper-CUDA.cmake |  3 +++
 SuperBuild/External_Autoscoper.cmake      |  2 +-
 3 files changed, 17 insertions(+), 1 deletion(-)
 create mode 100644 SuperBuild/External_Autoscoper-CUDA.cmake

diff --git a/SuperBuild.cmake b/SuperBuild.cmake
index aae55fc..17fbb45 100644
--- a/SuperBuild.cmake
+++ b/SuperBuild.cmake
@@ -21,6 +21,19 @@ set(${proj}_DEPENDS
   Autoscoper-OpenCL
   )
 
+if(DEFINED ENV{SlicerAutoscoperM_CUDA_PATH})
+  set(ENV{CUDA_PATH} $ENV{SlicerAutoscoperM_CUDA_PATH})
+endif()
+
+find_package(CUDA)
+if(CUDA_FOUND)
+  # Variable expected by find_package(CUDA) also used in Autoscoper
+  mark_as_superbuild(VARS CUDA_TOOLKIT_ROOT_DIR PROJECTS Autoscoper-CUDA)
+  list(APPEND ${proj}_DEPENDS
+    Autoscoper-CUDA
+    )
+endif()
+
 ExternalProject_Include_Dependencies(${proj}
   PROJECT_VAR proj
   SUPERBUILD_VAR ${EXTENSION_NAME}_SUPERBUILD
diff --git a/SuperBuild/External_Autoscoper-CUDA.cmake b/SuperBuild/External_Autoscoper-CUDA.cmake
new file mode 100644
index 0000000..3055c2a
--- /dev/null
+++ b/SuperBuild/External_Autoscoper-CUDA.cmake
@@ -0,0 +1,3 @@
+set(proj Autoscoper-CUDA)
+set(${proj}_RENDERING_BACKEND CUDA)
+include(${CMAKE_CURRENT_LIST_DIR}/External_Autoscoper.cmake)
diff --git a/SuperBuild/External_Autoscoper.cmake b/SuperBuild/External_Autoscoper.cmake
index 16e1b71..b96cd69 100644
--- a/SuperBuild/External_Autoscoper.cmake
+++ b/SuperBuild/External_Autoscoper.cmake
@@ -35,7 +35,7 @@ if(NOT DEFINED ${proj}_DIR AND NOT ${SUPERBUILD_TOPLEVEL_PROJECT}_USE_SYSTEM_${p
 
   ExternalProject_SetIfNotDefined(
     Slicer_${proj}_GIT_TAG
-    "d476e2cbb4fc72a4dea5f4d467676bf9b978d8ce"
+    "644473784dd0018f5bf8518c5e5322092e4da07d"
     QUIET
   )