Different behavior on diff. CPU (Carbon Emacs)

[Denis Bueno]

Whenever I M-x compile a project on my G4 Powerbook[1], I get the 
correct behavior: the *compilation* buffer is syntax-highlighted & if 
there's an error, C-x ` will open up the buffer of the offending file, & 
jump to the place in the file that the compiler process claims is 
causing the error.

On my G5 PowerMac[2], however, *compilation* is not highlighted at all, 
and C-x ` doesn't work. I'm compiling with Makefiles, and this occurs 
when compiling C code or OCaml code.

This happens with CVS Emacs from a couple of days ago. Same .emacs in 
both. Same Makefile .I don't customise 
compilation-error-regexp-alist[-alist].

I'm not sure how even to start debugging this. I'm hoping for some 
pointers so that I can provide you with useful info.

Thanks.

-Denis

[1] Darwin taggart.local 8.6.0 Darwin Kernel Version 8.6.0: Tue Mar  7 
16:58:48 PST 2006; root:xnu-792.6.70.obj~1/RELEASE_PPC Power Macintosh 
powerpc

[2] Darwin ford.local 8.6.0 Darwin Kernel Version 8.6.0: Tue Mar  7 
16:58:48 PST 2006; root:xnu-792.6.70.obj~1/RELEASE_PPC Power Macintosh 
powerpc