configure: do not attempt to link when checking for compiler
configure: do not attempt to link when checking for compiler

Just produce object file otherwise configure will fail to detect
compiler for systems with RTOS since it will attempt to link _exit()
that is not implemented there.

Signed-off-by: Cyril Hrubis <b1e90efd3b808b8e0bcf2a9a55fd8b9a779bfd81@ucw.cz>

gfxprim/gfxprim,gfxprim/gfxprim,gfxprim/gfxprim,gfxprim/gfxprim,gfxprim/gfxprim