also link to CUDA::cufft_static in case of BUILD_SHARED_LIBS=OFF

Author: gregorburger

modules/cudaarithm/CMakeLists.txt

@@ -9,6 +9,9 @@ ocv_warnings_disable(CMAKE_CXX_FLAGS /wd4127 /wd4324 /wd4512 -Wundef -Wmissing-d
 set(extra_dependencies "")
 set(optional_dependencies "")
 if(ENABLE_CUDA_FIRST_CLASS_LANGUAGE)
+  if(UNIX AND NOT BUILD_SHARED_LIBS AND CUDA_VERSION_STRING VERSION_GREATER_EQUAL 9.2 AND CMAKE_VERSION VERSION_GREATER_EQUAL 3.23)
+    set(CUDA_FFT_LIB_EXT "_static_nocallback")
+  endif()
   list(APPEND extra_dependencies CUDA::cudart_static CUDA::nppial${CUDA_LIB_EXT} CUDA::nppc${CUDA_LIB_EXT} CUDA::nppitc${CUDA_LIB_EXT} CUDA::nppig${CUDA_LIB_EXT} CUDA::nppist${CUDA_LIB_EXT} CUDA::nppidei${CUDA_LIB_EXT})
   if(HAVE_CUBLAS)
     list(APPEND optional_dependencies CUDA::cublas${CUDA_LIB_EXT})
@@ -18,7 +21,8 @@ if(ENABLE_CUDA_FIRST_CLASS_LANGUAGE)
   endif()
   if(HAVE_CUFFT)
     # static version requires seperable compilation which is incompatible with opencv's current library structure
-    list(APPEND optional_dependencies CUDA::cufft)
+    # the cufft_static_nocallback variant does not requires seperable compilation. callbacks are currently not used.
+    list(APPEND optional_dependencies CUDA::cufft${CUDA_FFT_LIB_EXT})
   endif()
 else()
   if(HAVE_CUBLAS)