"Undefined symbols for architecture" when building Universal Binaries

The build I'm doing works fine when specifying either i386 or x86_64 or ppc *by itself*, however whenever I try to combine the archs to make a UB, I get problems building libraries. I'm using an existing makefile system as this needs to be portable across many platforms. Any ideas?
Here's the output (trying i386 & x86_64):
gcc -I/Users/Documents/AccurevWorkspace/RDMe-AurigaDevmacosx/include -D_REENTRANT -DOSX_X86 -DNO_TERMCAP -DNOPOSIXMUTEXES -arch i386 -arch x86_64 -isysroot /Developer/SDKs/MacOSX10.6.sdk -mmacosx-version-min=10.5 -DNO_ENCRYPTION -DTASK_DEFN -DNO_ENCRYPTION -c sddlp_util.c -o osx/static/sddlp_util.o
ar ru osx/librdmeddl9_static.a osx/static/ddlp.o osx/static/ddlalign.o osx/static/ddllex.o osx/static/ddlp_util.o osx/static/ddltable.o osx/static/ddlxref.o osx/static/writejni.o osx/static/sddlp.o osx/static/sddlp_util.o
ar: creating archive osx/librdmeddl9_static.a
cp -f /Users/Documents/AccurevWorkspace/RDMe-AurigaDev_macosx/source/tools/ddl/osx/librdmeddl9static.a /Users/Documents/AccurevWorkspace/RDMe-AurigaDevmacosx/lib/osx
gcc -c -I/Users/Documents/AccurevWorkspace/RDMe-AurigaDevmacosx/include -D_REENTRANT -DOSX_X86 -DNO_TERMCAP -DNOPOSIXMUTEXES -arch i386 -arch x86_64 -isysroot /Developer/SDKs/MacOSX10.6.sdk -mmacosx-version-min=10.5 -DNO_ENCRYPTION -DTASK_DEFN -DNO_ENCRYPTION ddlp_main.c -o osx/static/ddlp_main.o
gcc -arch i386 -arch x86_64 -isysroot /Developer/SDKs/MacOSX10.6.sdk -mmacosx-version-min=10.5 -o osx/ddlp_static osx/static/ddlp_main.o -L/Users/Documents/AccurevWorkspace/RDMe-AurigaDevmacosx/lib/osx -lrdmeddl9_static -L/Users/Documents/AccurevWorkspace/RDMe-AurigaDevmacosx/lib/osx -lrdmebase9_static -L/Users/Documents/AccurevWorkspace/RDMe-AurigaDevmacosx/lib/osx -lrdmepsp9_static
ld: warning: in /Users/Documents/AccurevWorkspace/RDMe-AurigaDev_macosx/lib/osx/librdmeddl9static.a, file is not of required architecture
ld: warning: in /Users/Documents/AccurevWorkspace/RDMe-AurigaDev_macosx/lib/osx/librdmebase9static.a, file is not of required architecture
ld: warning: in /Users/Documents/AccurevWorkspace/RDMe-AurigaDev_macosx/lib/osx/librdmepsp9static.a, file is not of required architecture
Undefined symbols for architecture i386:
"pspinit", referenced from:
_main in ddlp_main.o
"pspterm", referenced from:
_main in ddlp_main.o
"ddlpmain", referenced from:
_main in ddlp_main.o
ld: symbol(s) not found for architecture i386
collect2: ld returned 1 exit status
ld: warning: in /Users/Documents/AccurevWorkspace/RDMe-AurigaDev_macosx/lib/osx/librdmeddl9static.a, file is not of required architecture
ld: warning: in /Users/Documents/AccurevWorkspace/RDMe-AurigaDev_macosx/lib/osx/librdmebase9static.a, file is not of required architecture
ld: warning: in /Users/Documents/AccurevWorkspace/RDMe-AurigaDev_macosx/lib/osx/librdmepsp9static.a, file is not of required architecture
Undefined symbols for architecture x86_64:
"pspinit", referenced from:
_main in ddlp_main.o
"pspterm", referenced from:
_main in ddlp_main.o
"ddlpmain", referenced from:
_main in ddlp_main.o
ld: symbol(s) not found for architecture x86_64
collect2: ld returned 1 exit status
lipo: can't open input file: /var/folders/0H/0H34PYrnF7SXdZBPnDciuU+jA/-Tmp-//cciWTBHk.out (No such file or directory)
make: * [osx/ddlp_static] Error 1

OK, solved the problem. AR requires the -s flag when building UBs:
If you are building for multiple arches then you should pass ar the -s
flag (as Rainer said) to ar to ensure that the table of contents is
created. As you can see from the ar sources it calls ranlib -q normally,
and ranlib -f if it saw the -s flag. Ranlib -q will "Do nothing if a
universal file would be created." whereas ranlib -f will create the fat
archive.
http://www.nabble.com/Why-ar-doesn't-call-ranlib-on-Mac--td22319721.html

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Sep 9 09:33:26 jump-test krtld: [ID 826211 kern.notice] 'usb_register_event_cbs'
Sep 9 09:33:26 jump-test krtld: [ID 819705 kern.notice] /kernel/drv/sparcv9/usbser_edge: undefined symbol
Sep 9 09:33:26 jump-test krtld: [ID 826211 kern.notice] 'usb_free_intr_req'
Sep 9 09:33:26 jump-test krtld: [ID 819705 kern.notice] /kernel/drv/sparcv9/usbser_edge: undefined symbol
Sep 9 09:33:26 jump-test krtld: [ID 826211 kern.notice] 'usb_free_log_hdl'
Sep 9 09:33:27 jump-test krtld: [ID 819705 kern.notice] /kernel/drv/sparcv9/usbser_edge: undefined symbol
Sep 9 09:33:27 jump-test krtld: [ID 826211 kern.notice] 'usb_pipe_stop_intr_polling'
Sep 9 09:33:27 jump-test krtld: [ID 819705 kern.notice] /kernel/drv/sparcv9/usbser_edge: undefined symbol
Sep 9 09:33:27 jump-test krtld: [ID 826211 kern.notice] 'usbser_attach'
Sep 9 09:33:27 jump-test krtld: [ID 819705 kern.notice] /kernel/drv/sparcv9/usbser_edge: undefined symbol
Sep 9 09:33:27 jump-test krtld: [ID 826211 kern.notice] 'usbser_detach'
Sep 9 09:33:27 jump-test krtld: [ID 819705 kern.notice] /kernel/drv/sparcv9/usbser_edge: undefined symbol
Sep 9 09:33:27 jump-test krtld: [ID 826211 kern.notice] 'usb_get_dev_data'
Sep 9 09:33:27 jump-test krtld: [ID 819705 kern.notice] /kernel/drv/sparcv9/usbser_edge: undefined symbol
Sep 9 09:33:27 jump-test krtld: [ID 826211 kern.notice] 'usb_pipe_open'
Sep 9 09:33:27 jump-test krtld: [ID 819705 kern.notice] /kernel/drv/sparcv9/usbser_edge: undefined symbol
Sep 9 09:33:27 jump-test krtld: [ID 826211 kern.notice] 'usb_alloc_log_hdl'
Sep 9 09:33:27 jump-test krtld: [ID 819705 kern.notice] /kernel/drv/sparcv9/usbser_edge: undefined symbol
Sep 9 09:33:27 jump-test krtld: [ID 826211 kern.notice] 'usbser_rsrv'
Sep 9 09:33:27 jump-test krtld: [ID 819705 kern.notice] /kernel/drv/sparcv9/usbser_edge: undefined symbol
Sep 9 09:33:27 jump-test krtld: [ID 826211 kern.notice] 'usbser_wsrv'
Sep 9 09:33:27 jump-test krtld: [ID 819705 kern.notice] /kernel/drv/sparcv9/usbser_edge: undefined symbol
Sep 9 09:33:27 jump-test krtld: [ID 826211 kern.notice] 'usbser_wput'
Sep 9 09:33:27 jump-test krtld: [ID 819705 kern.notice] /kernel/drv/sparcv9/usbser_edge: undefined symbol
Sep 9 09:33:27 jump-test krtld: [ID 826211 kern.notice] 'usbser_open'
Sep 9 09:33:27 jump-test krtld: [ID 819705 kern.notice] /kernel/drv/sparcv9/usbser_edge: undefined symbol
Sep 9 09:33:27 jump-test krtld: [ID 826211 kern.notice] 'usb_check_same_device'
Sep 9 09:33:27 jump-test krtld: [ID 819705 kern.notice] /kernel/drv/sparcv9/usbser_edge: undefined symbol
Sep 9 09:33:27 jump-test krtld: [ID 826211 kern.notice] 'usb_pipe_intr_xfer'
Sep 9 09:33:27 jump-test krtld: [ID 819705 kern.notice] /kernel/drv/sparcv9/usbser_edge: undefined symbol
Sep 9 09:33:27 jump-test krtld: [ID 826211 kern.notice] 'usb_create_pm_components'
Sep 9 09:33:27 jump-test krtld: [ID 819705 kern.notice] /kernel/drv/sparcv9/usbser_edge: undefined symbol
Sep 9 09:33:27 jump-test krtld: [ID 826211 kern.notice] 'usb_free_descr_tree'
Sep 9 09:33:28 jump-test krtld: [ID 819705 kern.notice] /kernel/drv/sparcv9/usbser_edge: undefined symbol
Sep 9 09:33:28 jump-test krtld: [ID 826211 kern.notice] 'usb_set_device_pwrlvl0'
Sep 9 09:33:28 jump-test krtld: [ID 819705 kern.notice] /kernel/drv/sparcv9/usbser_edge: undefined symbol
Sep 9 09:33:28 jump-test krtld: [ID 826211 kern.notice] 'usb_set_device_pwrlvl1'
Sep 9 09:33:28 jump-test krtld: [ID 819705 kern.notice] /kernel/drv/sparcv9/usbser_edge: undefined symbol
Sep 9 09:33:28 jump-test krtld: [ID 826211 kern.notice] 'usb_set_device_pwrlvl2'
Sep 9 09:33:28 jump-test krtld: [ID 819705 kern.notice] /kernel/drv/sparcv9/usbser_edge: undefined symbol
Sep 9 09:33:28 jump-test krtld: [ID 826211 kern.notice] 'usb_set_device_pwrlvl3'
Sep 9 09:33:28 jump-test krtld: [ID 819705 kern.notice] /kernel/drv/sparcv9/usbser_edge: undefined symbol
Sep 9 09:33:28 jump-test krtld: [ID 826211 kern.notice] 'usb_pipe_get_max_bulk_transfer_size'
Sep 9 09:33:28 jump-test krtld: [ID 819705 kern.notice] /kernel/drv/sparcv9/usbser_edge: undefined symbol
Sep 9 09:33:28 jump-test krtld: [ID 826211 kern.notice] 'usbser_soft_state_size'
Sep 9 09:33:28 jump-test krtld: [ID 819705 kern.notice] /kernel/drv/sparcv9/usbser_edge: undefined symbol
Sep 9 09:33:28 jump-test krtld: [ID 826211 kern.notice] 'usb_alloc_bulk_req'
Sep 9 09:33:28 jump-test krtld: [ID 819705 kern.notice] /kernel/drv/sparcv9/usbser_edge: undefined symbol
Sep 9 09:33:28 jump-test krtld: [ID 826211 kern.notice] 'usb_handle_remote_wakeup'
Sep 9 09:33:28 jump-test krtld: [ID 819705 kern.notice] /kernel/drv/sparcv9/usbser_edge: undefined symbol
Sep 9 09:33:28 jump-test krtld: [ID 826211 kern.notice] 'usb_client_attach'
Sep 9 09:33:28 jump-test krtld: [ID 819705 kern.notice] /kernel/drv/sparcv9/usbser_edge: undefined symbol
Sep 9 09:33:28 jump-test krtld: [ID 826211 kern.notice] 'usb_client_detach'
Sep 9 09:33:28 jump-test krtld: [ID 472681 kern.notice] WARNING: mod_load: cannot load module 'usbser_edge'
Sep 9 09:33:28 jump-test krtld: [ID 749970 kern.notice] WARNING: usbser_edge:
Sep 9 09:33:28 jump-test krtld: [ID 225575 kern.notice] unable to resolve dependency, module 'misc/usba' not found
Thanks in advance for any advice anyone can provide.
pb

I just attempted a generic search at Sunsolve, for "usbser_edge".
It produced references to a lot of documents available after contract login to the site.
If you have a Spectrum login account, get to BugID 4703982.
It's from 2003 or so...
but it discusses the SUNWuedg package being incorrectly installed,
on beta versions of Sol-10, to an E250 and to a SB1000.
Other search result references to various BugID's also happened to discuss
removing references to the driver in the /etc/name_to_major file
as well as in the /etc/driver_aliases file.
See BugID 4790469 or BugID 5045102
I don't trust my skill level with mucking around with such files, however.
If you have contract coverage for the OS or for that system, open a support case.
If not, then see if the SUNWuedg package is installed and remove it.
Then a reconfiguration reboot may be in order.
What the heck, try a reconfiguration reboot just for grins and giggles.
... just my two cents, at least.

Xcode building to both architectures when I only want one?

I have a fairly simple (one source file) command line application in C which was written for Linux but ought to run in OSX as long as I can provide its dependencies (some GNU libraries). I compiled/installed the GNU libraries it needed using Fink. Fink only builds Intel binaries, since I am using an Intel Mac. Because of this, I need Xcode to only try to compile my little application as an Intel (i386) binary, and not try to make a PPC binary or a Universal binary.
I opened "Project" -> "Edit Project Settings..." -> clicked on the "Build" tab and went to the "Architectures" setting. I made sure it said only "i386" and did a Clean and then another Build. However I can clearly see in the build log that Xcode is invoking the compiler and linker twice each -- once for each CPU architecture. After compiling the PPC version of my code it will fail to link, because there are no PPC versions of its dependencies (the GNU libraries).
Why is Xcode doing this, and is there a second setting that I haven't found, to make it ONLY build an Intel binary?

I tried your experiment and saw a similar problem... I'm on a PPC Mac though. Initially the standard tool was building a Universal Binary even though the Project Info -> Build -> Architectures was just set to "ppc".
So first I tried going to the "General" pane of the Project Info window and switching the pop-up at "Cross-Develop Using Target SDK:" from "Mac OS X 10.4 (Universal)" to "Current Mac OS"... That still tried to build a universal binary only this time I got several errors on the Intel link phase because the "Current OS" SDK contained no Intel libraries.
However there appears to be a different Architectures setting on a per Target basis.
In your "Groups & Files" pane expand the "Targets" group and select your target. Then click the "Info" button in the toolbar (or select "File -> Get Info") to get to the Target Info window. Select the "Build" pane... On my machine the "Architectures" setting here was set to both "ppc" and "i386". Turning off the "i386" here fixed my problem and allowed it to build only for ppc.
I'm not sure how these Target settings roll up into what you see in the Project settings. But it does seem kind of odd.
Steve

Universal Binaries for FCE HD?

will FCE HD be phased out? Or will apple introduce universal binaries for FCE HD? Or has it already been ported?
If anyone knows for sure, please post revelant URLs (rather than opinions)
thanks

Well I finally had a real project to work on and rendering is awfully hindered in Rosetta, which I should have expected.
I have several sequences about 5 min in length with several transitions like cross fade and fade to black. I also applied a color correction filter. Rendering takes about 10-15 minutes which, if I remember my G5's performance correctly, is way slow.
Also of note, there are dropped frames during playback when it reaches cuts with transitions and filters applied and is unrendered (real time playback).
Other than that, I was able to finish the project like I normally would have, it just took longer.
PowerMac G5 Dual 1.8, MacBook Pro 2.16 Mac OS X (10.4.6)

Undefined symbol error when importing PyQt5.Core

If I try to import (in python) PyQt5.QtCore, issues arise:
ImportError Traceback (most recent call last)
<ipython-input-1-2bb10a0eb39a> in <module>()
----> 1 import PyQt5.QtCore
ImportError: /usr/lib/python3.4/site-packages/PyQt5/QtCore.so: undefined symbol: _ZTI13QFileSelector
Unwrapping that symbol with c++filt, I get:
typeinfo for QFileSelector
This issue pops up when compiling sonic-pi-git. It also prevents the launch of applications like leo that import PyQt5.Core.
This is only an issue on one of my systems, a laptop with an Intel i7 (Haswell) processor. My AMD-based desktop does not have this issue.
I think it's probably a poorly installed library, but which one it is and how I fix it is a mystery to me. Any thoughts are appreciated, more info can be provided on request. Thank you for your time.

Well I've got good news and bad news it seems.
Bad: installing the latest development snapshot of PyQt5 (PyQt-gpl-5.5-snapshot-f6bfd44ba749) from their website did not solve the problem. The same error occurs on trying to import PyQt5.QtCore. This issue is still non-existant on my Antergos VM with the official packages, which have the same version numbers as those in the Arch repos.
Good: removing the python2-pyqt5 package solves my issue with launching the program Leo, so it seems the library import and Leo issues might be unrelated. Still need this package as a dependency for other programs though...
I'm kind of stumped. Is the next best step just removing packages until I've found the one that's breaking this part of the library, or seeking some help upstream? And is anyone else running into this issue as well, or is it really just me?

Undefined Symbols when using Workshop 6 update 1

When trying to build my executable , I get undefined symbols
START and END in crti.o
The error message is
Undefined Symbol "_START_"
First reference is from /opt/SUNWspro/WS6U1/lib/crti.o
I am working on WS 6U1 on solaris 5.8
I have all standard & WS Libraries in LD_LIBRARY_PATH
Any ideas greatly appreciated as I need to get this resolved quickly ..

Your program is not correctly linked with a runtime.
How did you compile it? Is this a first trial with
a newly installed compiler? Had you compiled other
programs correctly?

"Undefined symbols for architecture" when building Universal Binaries

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