OpenVino Inference Engine C API not found

I installed the OpenVino on my Ubuntu 20.04 using the apt command.

sudo apt install intel-openvino-dev-ubuntu20-2021.3.394

I am trying to compile this simple program using gcc 1.c -linference_engine_c_api.

#include <stdio.h>
#include <c_api/ie_c_api.h>

int main() {
    printf("C API Successfully Loaded!");
}

But the compilation fails with the following error:

1.c:2:10: fatal error: c_api/ie_c_api.h: No such file or directory
    2 | #include <c_api/ie_c_api.h>
      |          ^~~~~~~~~~~~~~~~~~
compilation terminated.

How do I solve this?

Solution

You cannot directly call gcc for the 1.c file. You need to create a script to compile necessary dependencies (like CMake).

For example, in \opt\intel\openvino_2021.3.394\deployment_tools\inference_engine\samples\c there is build_sample.h script. This script is used to perform all compilation and it uses CMake. Same goes for gcc, to run the inference lib you need to compile the script first before calling ie_c_api.h. 1.c file cannot be run directly when gcc compiler does not support the operation.

Please go to Integrate the Inference Engine with Your Application - OpenVINO™ Toolkit (openvinotoolkit.org) for reference.