Makefile: build of c++ file on linux, unable to locate cuda libraries in opencv 2.4.6 - linux

Question

Hopefully someone can help with this.
After rebuilding OpenCV 2.4.6 with Cuda Toolkit 5.5 on linux, an attempt was made to build a single c++ file that references OpenCV and CUDA using via make and a CLI g++ command. The input and output from each approach are shown below.
The Makefile attempts to reference the *.a files from OpenCV, but is not successful. The CLI g++ command attempts to reference *.so files, which it seems to do, however, some methods appear to be undefined.
Is it necessary for the Makefile to access only the OpenCV *.a files?
Makefile:
CFLAGS = -g Wall
LIBPATH = /data/content/cuda/opencv-2.4.6/lib
LIBS = -lopencv_calib3d_pch_dephelp -lopencv_contrib_pch_dephelp -lopencv_core_pch_dephelp -lopencv_features2d_pch_dephelp -lopencv_flann_pch_dephelp -lopencv_gpu_pch_dephelp -lopencv_haartraining_engine -lopencv_highgui_pch_dephelp -lopencv_imgproc_pch_dephelp -lopencv_legacy_pch_dephelp -lopencv_ml_pch_dephelp -lopencv_nonfree_pch_dephelp -lopencv_objdetect_pch_dephelp -lopencv_perf_calib3d_pch_dephelp -lopencv_perf_core_pch_dephelp -lopencv_perf_features2d_pch_dephelp -lopencv_perf_gpu_pch_dephelp -lopencv_perf_highgui_pch_dephelp -lopencv_perf_imgproc_pch_dephelp -lopencv_perf_nonfree_pch_dephelp -lopencv_perf_objdetect_pch_dephelp -lopencv_perf_photo_pch_dephelp -lopencv_perf_stitching_pch_dephelp -lopencv_perf_superres_pch_dephelp -lopencv_perf_video_pch_dephelp -lopencv_photo_pch_dephelp -lopencv_stitching_pch_dephelp -lopencv_superres_pch_dephelp -lopencv_test_calib3d_pch_dephelp -lopencv_test_contrib_pch_dephelp -lopencv_test_core_pch_dephelp -lopencv_test_features2d_pch_dephelp -lopencv_test_flann_pch_dephelp -lopencv_test_gpu_pch_dephelp -lopencv_test_highgui_pch_dephelp -lopencv_test_imgproc_pch_dephelp -lopencv_test_legacy_pch_dephelp -lopencv_test_ml_pch_dephelp -lopencv_test_nonfree_pch_dephelp -lopencv_test_objdetect_pch_dephelp -lopencv_test_photo_pch_dephelp -lopencv_test_stitching_pch_dephelp -lopencv_test_superres_pch_dephelp -lopencv_test_video_pch_dephelp -lopencv_ts_pch_dephelp -lopencv_video_pch_dephelp -lopencv_videostab_pch_dephelp -lopencv_gpu -lopencv_highgui
INCLUDEPATH1 = /usr/include/opencv2/core
INCLUDEPATH2 = /usr/include/opencv2/highgui
INCLUDEPATH3 = /usr/include/opencv2/gpu
all: tiff2png1.so
tiff2png1.so: main.o
g++ -o tiff2png1.so main.o **-L $(LIBPATH) $(LIB)**
main.o: main.cpp
g++ -c main.cpp -g -Wall -I $(INCLUDEPATH1) -I $(INCLUDEPATH2) -I $(INCLUDEPATH3) $(LIBPATH)
.PHONY: clean
clean:
rm -vf tiff2png1.so *.o
Makefile Output:
g++ -o tiff2png1.so main.o -L /data/content/cuda/opencv-2.4.6/lib
main.o: In function main':
/home/.../main.cpp:13: undefined reference tocv::gpu::getCudaEnabledDeviceCount()'
/home/.../main.cpp:15: undefined reference to cv::gpu::getDevice()'
/home/.../main.cpp:21: undefined reference tocv::imread(std::basic_string, std::allocator > const&, int)'
/home/.../main.cpp:27: undefined reference to cv::gpu::GpuMat::GpuMat(cv::Mat const&)'
/home/.../main.cpp:29: undefined reference tocv::gpu::Stream::Null()'
/home/.../main.cpp:29: undefined reference to cv::gpu::resize(cv::gpu::GpuMat const&, cv::gpu::GpuMat&, cv::Size_<int>, double, double, int, cv::gpu::Stream&)'
/home/.../main.cpp:42: undefined reference tocv::Mat::Mat(cv::gpu::GpuMat const&)'
/home/.../main.cpp:49: undefined reference to cv::_InputArray::_InputArray(cv::Mat const&)'
...
main.o: In function~GpuMat': /usr/include/opencv2/core/gpumat.hpp:374: undefined reference to `cv::gpu::GpuMat::release()'
collect2: ld returned 1 exit status
make: * [tiff2png1.so] Error 1
Command Line Build
$ g++ -o tx.exe main.o -L/data/content/cuda/opencv-2.4.6/lib -lopencv_gpu
Command Line Build Output
/data/content/cuda/opencv-2.4.6/lib/libopencv_gpu.so: undefined reference to `cv::gpu::convertTo(cv::gpu::GpuMat const&, cv::gpu::GpuMat&, double, double, CUstream_st*)'
/data/content/cuda/opencv-2.4.6/lib/libopencv_gpu.so: undefined reference to `cv::gpu::setTo(cv::gpu::GpuMat&, cv::Scalar_, cv::gpu::GpuMat const&, CUstream_st*)'
/data/content/cuda/opencv-2.4.6/lib/libopencv_gpu.so: undefined reference to `cv::gpu::setTo(cv::gpu::GpuMat&, cv::Scalar_, CUstream_st*)'
collect2: ld returned 1 exit status

Answer 1

It looks like you may have omitted an 'S' at the end of your variable in the linker target
**LIBS** = -lopencv_calib3d_pch_dephelp ...
tiff2png1.so: main.o
g++ -o tiff2png1.so main.o -L $(LIBPATH) $(**LIB**)
and so the -l options aren't being passed to the linker
g++ -o tiff2png1.so main.o -L /data/content/cuda/opencv-2.4.6/lib **should be here** main.o