'clUnloadCompiler': was declared deprecated when trying to compile OpenCL

Question

I am trying to compile this. I am using the AMD SDK. I am using the header files that come with the aforementioned SDK and they are located in:

C:\Program Files (x86)\AMD APP\include\CL

The tutorial states:

Header files Just like any other external API used in C++, you must include a header file when using the OpenCL™ API. Usually, this is in the directory CL within the primary include directory. For the C++ bindings we have (replace the straight C API with cl.h):

I found that last bit a little confusing. I am using both .h and .hpp

#include <CL/cl.h> when this is used it will compile the checkErr function
#include <CL/cl.hpp> when this is used it gives me access to the cl namespace

When I try to compile this code it fails with:

'clUnloadCompiler': was declared deprecated

enter image description here

ADDITIONAL DETAILS (after removing #include <CL/c.h>)

It now gives the following list of errors: enter image description here

error C4996: Error  2   error LNK2019: unresolved external symbol _clReleaseCommandQueue@4 referenced in function "public: static int __cdecl cl::detail::ReferenceHandler<struct _cl_command_queue *>::release(struct _cl_command_queue *)" (?release@?$ReferenceHandler@PAU_cl_command_queue@@@detail@cl@@SAHPAU_cl_command_queue@@@Z)    


error LNK2019: unresolved external symbol _clReleaseContext@4 referenced in function "public: static int __cdecl cl::detail::ReferenceHandler<struct _cl_context *>::release(struct _cl_context *)" (?release@?$ReferenceHandler@PAU_cl_context@@@detail@cl@@SAHPAU_cl_context@@@Z)

In properties for my project I have:

added C:\Program Files (x86)\AMD APP\include\ as an additional include directory
added C:\Program Files (x86)\AMD APP\lib\x86_64 as an additional library directory
added OpenCL.lib as an additional dependency

The errors I listed happen regardless of whether or not I take the last two steps. That is, the last two do not seem to be helping or harming anything

For a C++ application, you should only need cl.hpp. Have you tried removing #include <CL/cl.h>? — Markku K.
Hi, okay I just removed it and I understand that it was messing up because I was including c and c++ headers. but now it is giving new errors. I explain the new errors in the question. — user1873073
First, try "rebuild" instead of just "build". Is there more than one OpenCL.lib available? You might try the other one. If that doesn't work, make sure the command that Visual Studio is issuing includes "OpenCL.lib" in it somewhere. — Markku K.
Yes, it worked! I switched the include library to x86 and did a rebuild. Thanks for your help! — user1873073

Markku K. Markku K. · Accepted Answer · 2013-05-30T19:48:49

Summary of answers I provided in comments:

For a C++ application, you only need to #include <CL/cl.hpp>
Make sure you are linking with the correct OpenCL.lib (32-bit vs. 64-bit).

'clUnloadCompiler': was declared deprecated when trying to compile OpenCL

2 Answers