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FindCUDA: Fix missing librt on Linux when using static cuda runtime. 

Commit 7229ae72 (FindCUDA: Refactor Android(Tegra) support, 2016-04-19)
changed the logic to only add librt to the link line for CUDA versions
6.5 and older.  However, newer versions of CUDA still require librt.
This commit is contained in:
Stephen Sorley 2016-08-11 15:54:28 -04:00 committed by Brad King
parent aab1f6e984
commit 1aa5c1bec8
1 changed files with 7 additions and 6 deletions
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13
Modules/FindCUDA.cmake
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@ -818,12 +818,13 @@ if(CUDA_USE_STATIC_CUDA_RUNTIME)
else()
unset(CMAKE_THREAD_PREFER_PTHREAD)
endif()
endif()
if (UNIX AND NOT APPLE AND CUDA_VERSION VERSION_LESS "7.0")
# Before CUDA 7.0, there was librt that has things such as, clock_gettime, shm_open, and shm_unlink.
find_library(CUDA_rt_LIBRARY rt)
if (NOT CUDA_rt_LIBRARY)
message(WARNING "Expecting to find librt for libcudart_static, but didn't find it.")
if(NOT APPLE)
#On Linux, you must link against librt when using the static cuda runtime.
find_library(CUDA_rt_LIBRARY rt)
if (NOT CUDA_rt_LIBRARY)
message(WARNING "Expecting to find librt for libcudart_static, but didn't find it.")
endif()
endif()
endif()
endif()