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NEW: Parameters for making siftgpu library can be changed in makefile. 
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	Look at the top part of makefile for details. 
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1. DEPENDING LIBRARIES
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The list of required libraries for Linux is 
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libGLEW.a	libglut.so 	libIL.so -> libIL.so.1 		libIL.so.1	
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optional libaries: 
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	libCudart.so 
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Those libraris may also be dependent on other libraries, and you may need to download them yourself. 
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You also need to handle the compatibility of those libraies yourself. 
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Get those libraries either in the system default path or ./bin here before compiling. 
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2. MAC OS
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For Mac User, the libraries are 
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GLUT.framework		OpenGL.framework	
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libGLEW		libIL 	libCudart (optional)
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3. SSE SETTING
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Please change the compiler options according to your CPU to enable SSE if the default setting doesn't work.
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siftgpu_sse_options = -march=(cpu_type) -mfpmath=sse
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SSE is only used in OpenGL-based imiplementations to speed up the descriptor normalization,
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you can delete them from CFLAGS if you are using only CUDA.
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4. OUTPUT
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The list of output binaries is
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./bin/libsiftgpu.a	./bin/libsiftgpu.so
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./bin/TestWinGlut	./bin/SimpleSIFT 	./bin/speed 	./bin/server_siftgpu
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If you want to run the stuff with any .so files in ./bin, don't forget to add . to LD_LIBRARY_PATH/
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DYDL_LIBRARY_PATH. For example:  export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:.
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