Hi,
(This is part of a collection of patches and workarounds I have
for consideration for problems in the build process in current
cvs. I'll just briefly describe each patch(-set) below, and if
needed will put them into bugzilla separately with more details.)
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
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-<<<<
I'm guessing at the above patch, still need to make distclean to
try it out again.
As a quick local fix, I actually hand-edited the related Makefile
in this manner:
>>>>-cut->>>>
--- build/programs/Xserver/Makefile_orig 2007-04-11 00:03:37 -0500
+++ build/programs/Xserver/Makefile 2007-04-11 01:53:54 -0500
@@ -1252,12 +1252,12 @@
Xdmx: $(XDMXDIRS)
-@if [ -f $@ ]; then set -x; \
$(MV) $@ $@.bak; else exit 0; fi
- $(CCLINK) -o $@ $(LDOPTIONS) $(XDMXOBJS) $(XDMXDEFFILE) $(XDMXLIBS) $(LDLIBS) $(XDMXSYSLIBS) $(EXTRA_LOAD_FLAGS)
+ $(CCLINK) -o $@ $(LDOPTIONS) $(XDMXOBJS) $(XDMXDEFFILE) $(XDMXLIBS) $(LDLIBS) $(XDMXSYSLIBS) $(EXTRA_LOAD_FLAGS) $(IOKITLIB) GL/mesa/GLcore/libGLcore.a -Wl,-m
loadXdmx:
-@if [ -f Xdmx ]; then set -x; \
$(MV) Xdmx Xdmx.bak; else exit 0; fi
- $(CCLINK) -o Xdmx $(LDOPTIONS) $(XDMXOBJS) $(XDMXDEFFILE) $(XDMXLIBS) $(LDLIBS) $(XDMXSYSLIBS) $(EXTRA_LOAD_FLAGS)
+ $(CCLINK) -o Xdmx $(LDOPTIONS) $(XDMXOBJS) $(XDMXDEFFILE) $(XDMXLIBS) $(LDLIBS) $(XDMXSYSLIBS) $(EXTRA_LOAD_FLAGS) $(IOKITLIB) GL/mesa/GLcore/libGLcore.a -Wl,-m
loadX:: loadXdmx
<<<<-cut-<<<<
Maybe someone could verify that these are indeed related and the
change to Imakefile will indeed create the two changes in the
Makefile. Shouldn't we add $(IOKITLIB) and libGLcore as
dependencies somehow, tho? (and of course IOKITLIB only if we
are building for Darwin)
I don't know if Xdmx will work on Darwin anyway, wouldn't Apple's
drivers use the native OSX support for multiple monitors even for
X11 apps? (using quartz-wm of course)
Thanks for any help. :)
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