Hello,
I first noticed with problem trying to compile GNUstep.
Let's name an Objective-C program main.m :
> gcc main.m -lobjc ...works fine.
If we name the very same program main.c :
> gcc -x objective-c main.c -lobjc
...gives :
/usr/local/lib/gcc/powerpc-unknown-linux-gnu/4.0.0/../../../../powerpc-unknown-linux-gnu/bin/ld: a.out: hidden symbol `_Unwind_GetIP' in /usr/local/lib/gcc/powerpc-unknown-linux-gnu/4.0.0/libgcc_eh.a(unwind-dw2.o) is referenced by DSO
collect2: ld returned 1 exit status
Then if I take the same main.m and process it in 2 steps :
> gcc -c main.m ...works fine
> gcc main.o -lobjc ...gives the same error message
Af far as I can tell, those problems did not show up with gcc-3.4.x . If you have any idea about the problem and/or the solution...
NB: gcc is 4.0.0 20050213
computer is an Apple powerpc running Linux 2.4.16NB2: the computer on which I ran the tests is not the same as this one I use to write this e-mail, so I typed the error message with my little fingers, which means there can/will be copying errors.
NB3: I have a very small example program if you ask for it, and please ask for any piece of information that you think would be useful.
Goodbye,
Stéphane Goujet.