Re: Link problems with Xdmx, may be Darwin-only(?)

On Wed, 11 Apr 2007, SciFi wrote:

> 5.  Link problems with Xdmx, may be Darwin-only(?)

> Build Log snip:

>>>>>
> [...]  -Wall -UNEED_SCREEN_REGIONS     -L../../exports/lib    	hw/dmx/dix/main.o hw/dmx/miinitext.o                      GL/mesa/main/dispatch.o   	hw/dmx/dix/libdix.a hw/dmx/os/libos.a hw/dmx/libdmxlib.a hw/dmx/config/libdmxconfig.a 		     hw/dmx/glxProxy/libglxProxy.a 		     miext/shadow/libshadow.a fb/libfb.a mi/libmi.a hw/dmx/Xext/libext.a record/librecord.a XTrap/libxtrap.a xkb/libxkb.a Xi/libxinput.a lbx/liblbx.a 		     ../../lib/lbxutil/liblbxutil.a  render/librender.a hw/dmx/input/libdmxinput.a -L/usr/X11R6/lib     	-L../../exports/lib  -lXfont -L/usr/local/lib -lfreetype ../../lib/font/stubs/libfntstubs.a -L../../exports/lib   -lXi -lXmu -lXt -lSM -lICE -lXext -lX11 		     -lXrender -lXext -lX11 -lz    		     -lXdmcp
> /usr/bin/ld: Undefined symbols:
> _DarwinGlxExtensionInit
> _DarwinGlxWrapInitVisuals
> __glapi_Dispatch
> [...]
> <<<<

> To recreate:

> Enable the Xdmx options in your [build/]config/cf/host.def file,
> e.g.
> #define XdmxServer		YES

You also have XFree86Devel set to YES.

> Build with latest XCode (Apple-provided gcc, ld, etc.).

> Possibly related env-vars:
> export MACOSX_DEPLOYMENT_TARGET="10.4"
> export SDKROOT="/Developer/SDKs/MacOSX10.4u.sdk"
> export SDK="${SDKROOT}"
> ...and maybe others...

> $ gcc --version
> powerpc-apple-darwin8-gcc-4.0.1 (GCC) 4.0.1 (Apple Computer, Inc. build 5367)
> [...]

> $ uname -a
> Darwin <hostname> 8.9.0 Darwin Kernel Version 8.9.0: Thu Feb 22 20:54:07 PST 2007; root:xnu-792.17.14~1/RELEASE_PPC Power Macintosh powerpc PowerMac7,3 Darwin

> (OSX 10.4.9 running on a Dual G5 2.7GHz with 3.5GB of matched-pair
> SDRAM and more...)

> Discussion:

> Some libs aren't being included at all during the link phase for
> Xdmx.

> I _think_ this is how it might be fixed:

>>>>> -cut->>>>
> --- xc/programs/Xserver/Imakefile_orig	2007-04-10 20:58:18 -0500
> +++ xc/programs/Xserver/Imakefile	2007-04-11 01:57:39 -0500
> @@ -1454,7 +1454,7 @@
> 	$(XDMXDIRS), \
> 	$(XDMXOBJS) $(XDMXDEFFILE), \
> 	$(XDMXLIBS), \
> -	$(XDMXSYSLIBS))
> +	$(XDMXSYSLIBS) $(IOKITLIB) GL/mesa/GLcore/libGLcore.a -Wl,-m)
> #endif /* XdmxServer */
>
>
> <<<<-cut-<<<<

No.  Xdmx has its own GLX implementation.

The patch below should fix this:

*** cvs/xc/programs/Xserver/Imakefile	Mon Apr  9 09:19:10 2007
--- devel/xc/programs/Xserver/Imakefile	Sat Apr 14 23:00:06 2007
*************** XCOMM
*** 1427,1436 ****
   		     $(DMXEXTDIRS) $(SHADOWDIR) $(DEPDIRS)
   #if BuildGlxInDmx
          GLXPROXYLIB = $(XDMXDDXDIR)/glxProxy/LibraryTargetName(glxProxy)
-         XDMXGLOBJS = $(GLOBJS)
   #endif
!           XDMXOBJS = $(XDMXDDXDIR)/dix/main.o $(XDMXDDXDIR)/miinitext.o \
!                      $(XDMXGLOBJS)
            XDMXINPUT = $(XDMXDDXDIR)/input/LibraryTargetName(dmxinput)
           XDMXCONFIG = $(XDMXDDXDIR)/config/LibraryTargetName(dmxconfig)
                 XDMX = $(XDMXDDXDIR)/LibraryTargetName(dmxlib) $(XDMXCONFIG) \
--- 1427,1434 ----
   		     $(DMXEXTDIRS) $(SHADOWDIR) $(DEPDIRS)
   #if BuildGlxInDmx
          GLXPROXYLIB = $(XDMXDDXDIR)/glxProxy/LibraryTargetName(glxProxy)
   #endif
!           XDMXOBJS = $(XDMXDDXDIR)/dix/main.o $(XDMXDDXDIR)/miinitext.o
            XDMXINPUT = $(XDMXDDXDIR)/input/LibraryTargetName(dmxinput)
           XDMXCONFIG = $(XDMXDDXDIR)/config/LibraryTargetName(dmxconfig)
                 XDMX = $(XDMXDDXDIR)/LibraryTargetName(dmxlib) $(XDMXCONFIG) \
*** cvs/xc/programs/Xserver/hw/dmx/glxProxy/glxext.c	Fri Jan 19 08:37:02 2007
--- devel/xc/programs/Xserver/hw/dmx/glxProxy/glxext.c	Sat Apr 14 22:48:48 2007
*************** void __glXNoSuchRenderOpcode(GLbyte *pc)
*** 518,520 ****
--- 518,534 ----
       return;
   }

+ #ifdef __DARWIN__
+ void
+ DarwinGlxExtensionInit(INITARGS)
+ {
+     GlxExtensionInit();
+ }
+
+ void
+ DarwinGlxWrapInitVisuals(
+     void *procPtr)
+ {
+     GlxWrapInitVisuals(procPtr);
+ }
+ #endif

Marc.

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