From 293ef7623424299c2282b310fba9706c81b43d1c Mon Sep 17 00:00:00 2001
From: Axel Naumann <Axel.Naumann@cern.ch>
Date: Wed, 10 Jul 2019 09:05:15 +0200
Subject: [PATCH] [cmake] Handle missing CUDA gracefully
---
cmake/modules/SearchInstalledSoftware.cmake | 13 +++++++++----
1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/cmake/modules/SearchInstalledSoftware.cmake b/cmake/modules/SearchInstalledSoftware.cmake
index 8d5b82976d4..a62bee8a658 100644
--- a/cmake/modules/SearchInstalledSoftware.cmake
+++ b/cmake/modules/SearchInstalledSoftware.cmake
@@ -1371,13 +1371,18 @@ endif()
#---Check for CUDA-----------------------------------------------------------------------
if(cuda OR tmva-gpu)
- find_package(CUDA REQUIRED)
+ find_package(CUDA)
- if(NOT DEFINED CMAKE_CUDA_STANDARD)
- set(CMAKE_CUDA_STANDARD ${CMAKE_CXX_STANDARD})
+ if(CUDA_FOUND)
+ if(NOT DEFINED CMAKE_CUDA_STANDARD)
+ set(CMAKE_CUDA_STANDARD ${CMAKE_CXX_STANDARD})
+ endif()
+
+ enable_language(CUDA)
+ elseif(fail-on-missing)
+ message(FATAL_ERROR "CUDA not found. Ensure that the installation of CUDA is in the CMAKE_PREFIX_PATH")
endif()
- enable_language(CUDA)
endif()
#---TMVA and its dependencies------------------------------------------------------------
--
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