Merge topic 'cuda_11' into release-3.19
046e454fdd CUDA: Error if can't determine toolkit library root
440dc98b07 CUDA: Clang CUDA 11.1 support
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !5525
diff --git a/Help/release/3.19.rst b/Help/release/3.19.rst
index 961d6c0..a29dc07 100644
--- a/Help/release/3.19.rst
+++ b/Help/release/3.19.rst
@@ -346,3 +346,5 @@
it can break projects that were using the property only to
cause the specified language's compiler to be used. This has
been reverted to restore behavior from CMake 3.18 and below.
+
+* CUDA 11.1 support for Clang.
diff --git a/Modules/CMakeDetermineCUDACompiler.cmake b/Modules/CMakeDetermineCUDACompiler.cmake
index 9220551..972adef 100644
--- a/Modules/CMakeDetermineCUDACompiler.cmake
+++ b/Modules/CMakeDetermineCUDACompiler.cmake
@@ -176,13 +176,15 @@
# In a non-scattered installation the following are equivalent to CMAKE_CUDA_COMPILER_TOOLKIT_ROOT.
# We first check for a non-scattered installation to prefer it over a scattered installation.
- # CMAKE_CUDA_COMPILER_LIBRARY_ROOT contains the device library and version file.
- if(EXISTS "${CMAKE_CUDA_COMPILER_TOOLKIT_ROOT}/version.txt")
+ # CMAKE_CUDA_COMPILER_LIBRARY_ROOT contains the device library.
+ if(EXISTS "${CMAKE_CUDA_COMPILER_TOOLKIT_ROOT}/nvvm/libdevice")
set(CMAKE_CUDA_COMPILER_LIBRARY_ROOT "${CMAKE_CUDA_COMPILER_TOOLKIT_ROOT}")
- elseif(CMAKE_SYSROOT_LINK AND EXISTS "${CMAKE_SYSROOT_LINK}/usr/lib/cuda/version.txt")
+ elseif(CMAKE_SYSROOT_LINK AND EXISTS "${CMAKE_SYSROOT_LINK}/usr/lib/cuda/nvvm/libdevice")
set(CMAKE_CUDA_COMPILER_LIBRARY_ROOT "${CMAKE_SYSROOT_LINK}/usr/lib/cuda")
- elseif(EXISTS "${CMAKE_SYSROOT}/usr/lib/cuda/version.txt")
+ elseif(EXISTS "${CMAKE_SYSROOT}/usr/lib/cuda/nvvm/libdevice")
set(CMAKE_CUDA_COMPILER_LIBRARY_ROOT "${CMAKE_SYSROOT}/usr/lib/cuda")
+ else()
+ message(FATAL_ERROR "Couldn't find CUDA library root.")
endif()
# CMAKE_CUDA_COMPILER_TOOLKIT_LIBRARY_ROOT contains the linking stubs necessary for device linking and other low-level library files.
