[Ecls-list] passing compiler and linker options through'compile-file'

[marc daya]

> Use the existing variables c::*cc-flags* and c::*ld-flags* to
> achieve the same result.

Thanks, Michael ... It does indeed.

I remember trying something similar and running into problems because
*cc-flags* and friends are not exported, but as I'm now unable to
reproduce that particular error message I'll put it down to (too much
| too little) coffee.
I had the feeling there was a better way; thanks for passing on a
little enlightenment.

.marc