diff options
| -rw-r--r-- | Help/envvar/CUDAARCHS.rst | 3 | ||||
| -rw-r--r-- | Help/envvar/CUDAHOSTCXX.rst | 5 | ||||
| -rw-r--r-- | Modules/CMakeDetermineCUDACompiler.cmake | 18 |
3 files changed, 12 insertions, 14 deletions
diff --git a/Help/envvar/CUDAARCHS.rst b/Help/envvar/CUDAARCHS.rst index 82369cd3b9..e9e6a420ca 100644 --- a/Help/envvar/CUDAARCHS.rst +++ b/Help/envvar/CUDAARCHS.rst @@ -6,8 +6,7 @@ CUDAARCHS .. include:: ENV_VAR.txt Value used to initialize :variable:`CMAKE_CUDA_ARCHITECTURES` on the first -configuration if it's not already defined. Subsequent runs will use the value -stored in the cache. +configuration. Subsequent runs will use the value stored in the cache. This is a semicolon-separated list of architectures as described in :prop_tgt:`CUDA_ARCHITECTURES`. diff --git a/Help/envvar/CUDAHOSTCXX.rst b/Help/envvar/CUDAHOSTCXX.rst index cf65927a51..74f5d48756 100644 --- a/Help/envvar/CUDAHOSTCXX.rst +++ b/Help/envvar/CUDAHOSTCXX.rst @@ -8,9 +8,8 @@ CUDAHOSTCXX Preferred executable for compiling host code when compiling ``CUDA`` language files. Will only be used by CMake on the first configuration to determine ``CUDA`` host compiler, after which the value for ``CUDAHOSTCXX`` is -stored in the cache as :variable:`CMAKE_CUDA_HOST_COMPILER`. For any -configuration run (including the first), the environment variable will be -ignored if the :variable:`CMAKE_CUDA_HOST_COMPILER` variable is defined. +stored in the cache as :variable:`CMAKE_CUDA_HOST_COMPILER`. This environment +variable is preferred over :variable:`CMAKE_CUDA_HOST_COMPILER`. This environment variable is primarily meant for use with projects that enable ``CUDA`` as a first-class language. diff --git a/Modules/CMakeDetermineCUDACompiler.cmake b/Modules/CMakeDetermineCUDACompiler.cmake index 8479831b0b..df7179979d 100644 --- a/Modules/CMakeDetermineCUDACompiler.cmake +++ b/Modules/CMakeDetermineCUDACompiler.cmake @@ -18,16 +18,16 @@ else() if(NOT CMAKE_CUDA_COMPILER) set(CMAKE_CUDA_COMPILER_INIT NOTFOUND) - # prefer the environment variable CUDACXX - if(NOT $ENV{CUDACXX} STREQUAL "") - get_filename_component(CMAKE_CUDA_COMPILER_INIT $ENV{CUDACXX} PROGRAM PROGRAM_ARGS CMAKE_CUDA_FLAGS_ENV_INIT) - if(CMAKE_CUDA_FLAGS_ENV_INIT) - set(CMAKE_CUDA_COMPILER_ARG1 "${CMAKE_CUDA_FLAGS_ENV_INIT}" CACHE STRING "Arguments to CXX compiler") - endif() - if(NOT EXISTS ${CMAKE_CUDA_COMPILER_INIT}) - message(FATAL_ERROR "Could not find compiler set in environment variable CUDACXX:\n$ENV{CUDACXX}.\n${CMAKE_CUDA_COMPILER_INIT}") - endif() + # prefer the environment variable CUDACXX + if(NOT $ENV{CUDACXX} STREQUAL "") + get_filename_component(CMAKE_CUDA_COMPILER_INIT $ENV{CUDACXX} PROGRAM PROGRAM_ARGS CMAKE_CUDA_FLAGS_ENV_INIT) + if(CMAKE_CUDA_FLAGS_ENV_INIT) + set(CMAKE_CUDA_COMPILER_ARG1 "${CMAKE_CUDA_FLAGS_ENV_INIT}" CACHE STRING "Arguments to CUDA compiler") endif() + if(NOT EXISTS ${CMAKE_CUDA_COMPILER_INIT}) + message(FATAL_ERROR "Could not find compiler set in environment variable CUDACXX:\n$ENV{CUDACXX}.\n${CMAKE_CUDA_COMPILER_INIT}") + endif() + endif() # finally list compilers to try if(NOT CMAKE_CUDA_COMPILER_INIT) |