(CCode) Make fails to build program (test.out)

[lmawarid]

When I tried make, I got the following errors:

The first two warnings are fixed if I change the compiler flag from -std=c99 to -std=gnu99. However, I'm at a loss as to why it won't find the library, even when I've included it in an appropriate directory.

Make test works properly.

EDIT: If it helps, I'm compiling with Cygwin gcc on Windows 10.

[bmaclach]

I suspect that this has to do with the compiler used to install the CVODE libraries. I believe that the compiler used to install the libraries must be the same compiler called by the makefile (Cygwin gcc in your case).