I don't recognize any of the error messages. It's possible you have set some other gcc related environment variable that is messing up the compilation. Perhaps you could run
./InstallGNUstep --verbose
to get all the compilation information. Note also that GNUstep does not work on Leopard due to the change in how the X11 display is handled.
On Tue Apr 15 0:56 , "Jordi Villà i Freixa" sent:
Could you please indicate me how to fix the above reported bug?