minor (unset NPP library variables if not found)

diff --git a/modules/gpu/FindNPP.cmake b/modules/gpu/FindNPP.cmake
index e1e6461..9cdf31f 100644 (file)
--- a/modules/gpu/FindNPP.cmake
+++ b/modules/gpu/FindNPP.cmake
@@ -77,16 +77,16 @@ find_library(CUDA_NPP_LIBRARIES
 find_library(CUDA_NPP_LIBRARIES NAMES npp${NPP_SUFFIX} libnpp${NPP_SUFFIX} DOC "NPP library")\r
 mark_as_advanced(CUDA_NPP_LIBRARIES)
 
-if(NOT EXISTS ${CUDA_NPP_LIBRARIES} OR NOT EXISTS ${CUDA_NPP_INCLUDES}/npp.h)
+if(NOT EXISTS ${CUDA_NPP_LIBRARIES} OR NOT EXISTS ${CUDA_NPP_INCLUDES}/npp.h)\r
+       set(CUDA_FOUND FALSE)\r
+       unset(CUDA_NPP_INCLUDES CACHE)\r
+       unset(CUDA_NPP_LIBRARIES CACHE)\r
+       
        if(NPP_FIND_REQUIRED)\r
                message(FATAL_ERROR "NPP headers/libraries are not found. Specify CUDA_NPP_LIBRARY_ROOT_DIR.")\r
        elseif(NOT CUDA_FIND_QUIETLY)\r
                message("NPP headers/libraries are not found or CUDA_NPP_LIBRARY_ROOT_DIR not specified.")\r
        endif() \r
-       \r
-       set(CUDA_FOUND FALSE)\r
-       unset(CUDA_NPP_INCLUDES CACHE)\r
-       unset(CUDA_NPP_LIBRARIES CACHE)\r
 else()\r
        \r
        if(APPLE)\r