Hi, coming back from my trip, I can now go to Gale's suggestions:

Nestor, could you check the versions of as (the assembler), ld (the linker), and Xcode and report back?

The coomand lines for as and ld version checking are:

as -v

Apple Computer, Inc. version cctools-622.3.obj~2, GNU assembler version 1.38

(You'll need a control c to get back to the command line)

ld -v

Apple Computer, Inc. version cctools-622.3.obj~2

For Xcode, from the Xcode menu select About Xcode and you'll get a info window with line like:

Xcode

Version: 2.4

Component versions

Xcode IDE: 759.0 Xcode Core: 757.0 ToolSupport: 733.0

If you could fill in the question mark information, that might help figure out a things.

Hope it helps, and thanks for the concern.

Nestor