I'm new to D, and I'd like to do some SDL programming on Tiger. I downloaded the SDL module from http://www.algonet.se/~afb/d/ and tried to build the example testbitmap.d, but I unfortunately get an error that I have no idea how to get around.

Typing "make testbitmap" gives this:
gdc -O -frelease -c testbitmap.d
gdc -O -frelease -c picture.d
gdc -O -frelease -c sdl/active.d
gdc -O -frelease -c sdl/cdrom.d
gdc -O -frelease -c sdl/error.d
gdc -O -frelease -c sdl/joystick.d
gdc -O -frelease -c sdl/main.d
gdc -O -frelease -c sdl/quit.d
gdc -O -frelease -c sdl/syswm.d
gdc -O -frelease -c sdl/audio.d
gdc -O -frelease -c sdl/events.d
gdc -O -frelease -c sdl/keyboard.d
gdc -O -frelease -c sdl/mouse.d
gdc -O -frelease -c sdl/rwops.d
gdc -O -frelease -c sdl/thread.d
gdc -O -frelease -c sdl/version.d
gdc -O -frelease -c sdl/byteorder.d
gdc -O -frelease -c sdl/endian.d
gdc -O -frelease -c sdl/getenv.d
gdc -O -frelease -c sdl/keysym.d
gdc -O -frelease -c sdl/mutex.d
gdc -O -frelease -c sdl/sdl.d
gdc -O -frelease -c sdl/timer.d
gdc -O -frelease -c sdl/video.d
ar cr libSDL_d.a active.o cdrom.o error.o joystick.o main.o quit.o
syswm.o audio.o events.o keyboard.o mouse.o rwops.o thread.o version.o
byteorder.o endian.o getenv.o keysym.o mutex.o sdl.o timer.o video.o
ranlib: file: libSDL_d.a(error.o) has no symbols
ranlib: file: libSDL_d.a(getenv.o) has no symbols
ranlib libSDL_d.a
ranlib: file: libSDL_d.a(error.o) has no symbols
ranlib: file: libSDL_d.a(getenv.o) has no symbols
ar cr sdl/libSDLmain_d.a sdl/SDLMain.o
ranlib sdl/libSDLmain_d.a
gdc -o testbitmap testbitmap.o picture.o libSDL_d.a sdl/libSDLmain_d.a
-L. -Wl,-framework,SDL -Wl,-framework,Cocoa -lSDL_d -Lsdl -lSDLmain_d
/usr/bin/ld: libSDL_d.a(mutex.o) has external relocation entries in
non-writable section (__TEXT,__text) for symbols:
_SDL_mutexV
_SDL_mutexP
collect2: ld returned 1 exit status
make: *** [testbitmap] Error 1



Any help would be much appreciated.

Ryan Burton wrote:

> I'm new to D, and I'd like to do some SDL programming on Tiger. I downloaded the SDL module from http://www.algonet.se/~afb/d/ and tried to build the example testbitmap.d, but I unfortunately get an error that I have no idea how to get around.
[...]
> /usr/bin/ld: libSDL_d.a(mutex.o) has external relocation entries in non-writable section (__TEXT,__text) for symbols:
> _SDL_mutexV
> _SDL_mutexP
> collect2: ld returned 1 exit status
> make: *** [testbitmap] Error 1

Looks good, so must be something new in the Tiger linker I guess ?

If you're bored, you can use the GCC-3.3 based version meanwhile...
(at least I hope that you can, as it seemed to work OK for Panther)

--anders

In article <duufn7$2pei$1@digitaldaemon.com>,
 Anders F Björklund <afb@algonet.se> wrote:

> Ryan Burton wrote:
> 
> > I'm new to D, and I'd like to do some SDL programming on Tiger. I downloaded the SDL module from http://www.algonet.se/~afb/d/ and tried to build the example testbitmap.d, but I unfortunately get an error that I have no idea how to get around.
> [...]
> > /usr/bin/ld: libSDL_d.a(mutex.o) has external relocation entries in
> > non-writable section (__TEXT,__text) for symbols:
> > _SDL_mutexV
> > _SDL_mutexP
> > collect2: ld returned 1 exit status
> > make: *** [testbitmap] Error 1
> 
> Looks good, so must be something new in the Tiger linker I guess ?
> 
> If you're bored, you can use the GCC-3.3 based version meanwhile... (at least I hope that you can, as it seemed to work OK for Panther)
> 
> --anders


Hmmm... I just tried the Panther GDC binaries and got the same error. I suppose I'll be building on Windows for now.

Thanks
-Ryan

Ryan Burton wrote:

>>Looks good, so must be something new in the Tiger linker I guess ?
>>
>>If you're bored, you can use the GCC-3.3 based version meanwhile...
>>(at least I hope that you can, as it seemed to work OK for Panther)
> 
> Hmmm... I just tried the Panther GDC binaries and got the same error. I suppose I'll be building on Windows for now.

Thanks for testing, but it was an error in my SDL wrapper (sorry) :-(

The order of the declarations need to be swapped around, and it works:
diff -u -r1.2 mutex.d
--- sdl/mutex.d 23 Oct 2004 08:16:37 -0000      1.2
+++ sdl/mutex.d 12 Mar 2006 08:06:58 -0000
@@ -48,12 +48,12 @@
 SDL_mutex * SDL_CreateMutex();

 /* Lock the mutex  (Returns 0, or -1 on error) */
-int SDL_LockMutex(SDL_mutex *m) { return SDL_mutexP(m); }
 int SDL_mutexP(SDL_mutex *mutex);
+int SDL_LockMutex(SDL_mutex *m) { return SDL_mutexP(m); }

 /* Unlock the mutex  (Returns 0, or -1 on error) */
-int SDL_UnlockMutex(SDL_mutex* m) { return SDL_mutexV(m); }
 int SDL_mutexV(SDL_mutex *mutex);
+int SDL_UnlockMutex(SDL_mutex* m) { return SDL_mutexV(m); }

 /* Destroy a mutex */
 void SDL_DestroyMutex(SDL_mutex *mutex);


> ld: libSDL_d.a(mutex.o) has external relocation entries in non-writable section (__TEXT,__text) for symbols:
> _SDL_mutexV
> _SDL_mutexP

Fixed in CVS, got "your error" before - and after this change it works.

Thanks!
--anders

Great! Works nicely now. Thanks!

-Ryan

In article <dv0krd$2s9c$1@digitaldaemon.com>,
 Anders F Björklund <afb@algonet.se> wrote:

> Ryan Burton wrote:
> 
> >>Looks good, so must be something new in the Tiger linker I guess ?
> >>
> >>If you're bored, you can use the GCC-3.3 based version meanwhile... (at least I hope that you can, as it seemed to work OK for Panther)
> > 
> > Hmmm... I just tried the Panther GDC binaries and got the same error. I suppose I'll be building on Windows for now.
> 
> Thanks for testing, but it was an error in my SDL wrapper (sorry) :-(
> 
> The order of the declarations need to be swapped around, and it works: diff -u -r1.2 mutex.d
> --- sdl/mutex.d 23 Oct 2004 08:16:37 -0000      1.2
> +++ sdl/mutex.d 12 Mar 2006 08:06:58 -0000
> @@ -48,12 +48,12 @@
>   SDL_mutex * SDL_CreateMutex();
> 
>   /* Lock the mutex  (Returns 0, or -1 on error) */
> -int SDL_LockMutex(SDL_mutex *m) { return SDL_mutexP(m); }
>   int SDL_mutexP(SDL_mutex *mutex);
> +int SDL_LockMutex(SDL_mutex *m) { return SDL_mutexP(m); }
> 
>   /* Unlock the mutex  (Returns 0, or -1 on error) */
> -int SDL_UnlockMutex(SDL_mutex* m) { return SDL_mutexV(m); }
>   int SDL_mutexV(SDL_mutex *mutex);
> +int SDL_UnlockMutex(SDL_mutex* m) { return SDL_mutexV(m); }
> 
>   /* Destroy a mutex */
>   void SDL_DestroyMutex(SDL_mutex *mutex);
> 
> 
> > ld: libSDL_d.a(mutex.o) has external relocation entries in non-writable
> > section (__TEXT,__text) for symbols:
> > _SDL_mutexV
> > _SDL_mutexP
> 
> Fixed in CVS, got "your error" before - and after this change it works.
> 
> Thanks!
> --anders