fix CI

- add nvrtc to windows libraries
- add path to cuda.so for linux

.appveyor.yml

@@ -12,7 +12,7 @@ install:
   - curl -sL https://github.com/fireice-uk/xmr-stak-dep/releases/download/v1/xmr-stak-dep.zip -o xmr-stak-dep.zip
   - 7z x xmr-stak-dep.zip -o"c:\xmr-stak-dep" -y > nul
   - appveyor DownloadFile  https://developer.nvidia.com/compute/cuda/8.0/prod/local_installers/cuda_8.0.44_windows-exe -FileName cuda_8.0.44_windows.exe
-  - cuda_8.0.44_windows.exe -s compiler_8.0 cudart_8.0
+  - cuda_8.0.44_windows.exe -s compiler_8.0 cudart_8.0 nvrtc_8.0 nvrtc_dev_8.0
   - set PATH=%ProgramFiles%\NVIDIA GPU Computing Toolkit\CUDA\v8.0\bin;%ProgramFiles%\NVIDIA GPU Computing Toolkit\CUDA\v8.0\libnvvp;%PATH%
   - nvcc -V
 

CMakeLists.txt

@@ -86,22 +86,8 @@ if(CUDA_ENABLE)
         PATH_SUFFIXES
             lib64	
             lib/x64
-            /lib/Win32)
-        find_path(nvvvvv
-        NAMES
-            libnvrtc 
-            nvrtc 
-            nvrtc.lib
-        HINTS 
-            ${CUDA_TOOLKIT_ROOT_DIR} 
-            ${LIBNVRTC_LIBRARY_DIR}
-            ${CUDA_TOOLKIT_ROOT_DIR}
-            /usr 
-            /usr/local/cuda
-        PATH_SUFFIXES
-            lib64
-            lib/x64
-            /lib/Win32)
+            lib/Win32
+            lib64/stubs)
 
         #nvrtc
         find_library(CUDA_NVRTC_LIB 
@@ -118,7 +104,7 @@ if(CUDA_ENABLE)
         PATH_SUFFIXES
             lib64
             lib/x64
-            /lib/Win32)
+            lib/Win32)
 
         list(APPEND BACKEND_TYPES "nvidia")
         option(XMR-STAK_LARGEGRID "Support large CUDA block count > 128" ON)