GPLed macros etc

I know that the GPL is "sticky" for statically linked modules.

So it is considered not to apply to proB4%grams that are just run on the Linux
kernel and use the dynamic libraries.

Moreover there is a "lesser GPL" that allows for non open source Kernel
modules.

But when compiling any C source code I need to use macros in .H files and
the linker includes some code from static libraries that come with the OS.

What license is defined for these file ?

-Michael