Merge topic 'cuda_clang_limitations' into release-3.18
bdb105ee94 Help: Mention CUDA Clang limitations in 3.18 release notes
fec7dd33d3 CUDA: Add issue number to Clang separable compilation error
14163d7d6b CUDA: Throw error for Clang on Windows
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !4903
diff --git a/Help/release/3.18.rst b/Help/release/3.18.rst
index db5f62a..072f9aa 100644
--- a/Help/release/3.18.rst
+++ b/Help/release/3.18.rst
@@ -13,7 +13,8 @@
Languages
---------
-* The ``CUDA`` language can now be compiled using Clang.
+* The ``CUDA`` language can now be compiled using Clang on non-Windows
+ platforms. Separable compilation is not yet supported on any platform.
Command-Line
------------
diff --git a/Modules/CMakeDetermineCUDACompiler.cmake b/Modules/CMakeDetermineCUDACompiler.cmake
index a0f7202..e12da45 100644
--- a/Modules/CMakeDetermineCUDACompiler.cmake
+++ b/Modules/CMakeDetermineCUDACompiler.cmake
@@ -198,6 +198,10 @@
string(APPEND nvcc_test_flags " -ccbin=${CMAKE_CUDA_HOST_COMPILER}")
endif()
elseif(CMAKE_CUDA_COMPILER_ID STREQUAL "Clang")
+ if(WIN32)
+ message(FATAL_ERROR "Clang with CUDA is not yet supported on Windows. See CMake issue #20776.")
+ endif()
+
set(clang_test_flags "--cuda-path=\"${CMAKE_CUDA_COMPILER_LIBRARY_ROOT}\"")
if(CMAKE_CROSSCOMPILING)
# Need to pass the host target and include directories if we're crosscompiling.
diff --git a/Source/cmLocalGenerator.cxx b/Source/cmLocalGenerator.cxx
index f748822..3b3f110 100644
--- a/Source/cmLocalGenerator.cxx
+++ b/Source/cmLocalGenerator.cxx
@@ -1997,7 +1997,8 @@
if (separable) {
this->Makefile->IssueMessage(
MessageType::FATAL_ERROR,
- "CUDA_SEPARABLE_COMPILATION isn't supported on Clang.");
+ "CUDA_SEPARABLE_COMPILATION isn't supported on Clang. "
+ "See CMake issue #20726.");
}
}
}
