Allow user supplied CUDA_NVCC_FLAGS

Respect enviromental CUDA_NVCC_FLAGS.

Signed-off-by: Justin Lecher <[email protected]>

Author: jlec

src/cpp/CMakeLists.txt

@@ -15,7 +15,7 @@ endif()
 set_property(TARGET flann_cpp_s PROPERTY COMPILE_DEFINITIONS FLANN_STATIC FLANN_USE_CUDA)
 
 if (BUILD_CUDA_LIB)
-    SET(CUDA_NVCC_FLAGS -DFLANN_USE_CUDA)
+    SET(CUDA_NVCC_FLAGS "${CUDA_NVCC_FLAGS};-DFLANN_USE_CUDA")
     if(CMAKE_COMPILER_IS_GNUCC)
 		set(CUDA_NVCC_FLAGS "${CUDA_NVCC_FLAGS};-Xcompiler;-fPIC;-arch=sm_13" )
         if (NVCC_COMPILER_BINDIR)