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| author | Bill Hoffman <bill.hoffman@kitware.com> | 2015-06-12 14:16:09 -0400 |
|---|---|---|
| committer | Brad King <brad.king@kitware.com> | 2015-06-15 09:41:10 -0400 |
| commit | b405f01daaeaeda98d448e2f0d71ea685757a5bd (patch) | |
| tree | 16806c1c0df46633e4296e4d73beec9731df355a /Modules/FindCUDA.cmake | |
| parent | 03e22481886c6ea97440f54ef84df84969e5969f (diff) | |
| download | cmake-b405f01daaeaeda98d448e2f0d71ea685757a5bd.tar.gz | |
FindCUDA: Resolve a host compiler symlink only if it is Apple cc -> clang
Otherwise using a "cc -> ccache" or similar symlink as the compiler
causes FindCUDA to select ccache as the host compiler. Update the logic
added by commit v3.1.0-rc1~354^2 (FindCUDA: Fix OSX Clang & no C
language enabled, 2014-06-12) to apply only in the specific case it is
needed.
Diffstat (limited to 'Modules/FindCUDA.cmake')
| -rw-r--r-- | Modules/FindCUDA.cmake | 32 |
1 files changed, 23 insertions, 9 deletions
diff --git a/Modules/FindCUDA.cmake b/Modules/FindCUDA.cmake index e8e1fb13d2..f4b0783107 100644 --- a/Modules/FindCUDA.cmake +++ b/Modules/FindCUDA.cmake @@ -468,17 +468,31 @@ set(CUDA_NVCC_FLAGS "" CACHE STRING "Semi-colon delimit multiple arguments.") if(CMAKE_GENERATOR MATCHES "Visual Studio") set(CUDA_HOST_COMPILER "$(VCInstallDir)bin" CACHE FILEPATH "Host side compiler used by NVCC") else() - # Using cc which is symlink to clang may let NVCC think it is GCC and issue - # unhandled -dumpspecs option to clang. Also in case neither - # CMAKE_C_COMPILER is defined (project does not use C language) nor - # CUDA_HOST_COMPILER is specified manually we should skip -ccbin and let - # nvcc use its own default C compiler. - if(DEFINED CMAKE_C_COMPILER AND NOT DEFINED CUDA_HOST_COMPILER) - get_filename_component(c_compiler_realpath "${CMAKE_C_COMPILER}" REALPATH) + if(APPLE + AND "${CMAKE_C_COMPILER_ID}" MATCHES "Clang" + AND "${CMAKE_C_COMPILER}" MATCHES "/cc$") + # Using cc which is symlink to clang may let NVCC think it is GCC and issue + # unhandled -dumpspecs option to clang. Also in case neither + # CMAKE_C_COMPILER is defined (project does not use C language) nor + # CUDA_HOST_COMPILER is specified manually we should skip -ccbin and let + # nvcc use its own default C compiler. + # Only care about this on APPLE with clang to avoid + # following symlinks to things like ccache + if(DEFINED CMAKE_C_COMPILER AND NOT DEFINED CUDA_HOST_COMPILER) + get_filename_component(c_compiler_realpath "${CMAKE_C_COMPILER}" REALPATH) + # if the real path does not end up being clang then + # go back to using CMAKE_C_COMPILER + if(NOT "${c_compiler_realpath}" MATCHES "/clang$") + set(c_compiler_realpath "${CMAKE_C_COMPILER}") + endif() + else() + set(c_compiler_realpath "") + endif() + set(CUDA_HOST_COMPILER "${c_compiler_realpath}" CACHE FILEPATH "Host side compiler used by NVCC") else() - set(c_compiler_realpath "") + set(CUDA_HOST_COMPILER "${CMAKE_C_COMPILER}" + CACHE FILEPATH "Host side compiler used by NVCC") endif() - set(CUDA_HOST_COMPILER "${c_compiler_realpath}" CACHE FILEPATH "Host side compiler used by NVCC") endif() # Propagate the host flags to the host compiler via -Xcompiler |