Run a program using cblas

I need to start a program with using cblas.h library. I download cblas.tgz and decompile it, I Run the command:

ln -s Makefile.LINUX Makefile.in

and try to run my program.

But I have this error.

I run my program used gcc main.c -cblas or gcc main.c, but the error is same.

I need to add a parameters in gcc compile?