I am trying to install C library GR [Link] on Ubuntu 18.04, after following the instructions to install, there is no error while installing but when using it gives the error :
foo.c:2:10: fatal error: gr.h: No such file or directory #include ^~~~~~ compilation terminated.
This is while compiling the example given on their installation page.
Is the installation faulty? Can anyone help me regarding this?
Thank You in advance.