[Kok-Yong Tan <ktan@xxxxxxxxxxxxxxxxxxx>]

On Nov 23, 2007, at 18:08, Stephen Fisher wrote:
> > There are no warnings or errors whatsoever during the builds of
> > Wireshark or Macports but when I try to fire up Wireshark from a  
> > xterm
> > window under /Utilities/X11, I get a bus error.
>
> That's odd.  Can you try building from our source code to see if the
> same problem happens?  You can download the source code from the
> www.wireshark.org web site.  Sometimes port systems apply patches that
> *might* be causing the problem, though it is unlikely.  The main
> advantage to building from source is that you can run out of the build
> directory with debugging symbols - do you know how to use gdb to  
> obtain
> a backtrace when that error occurs?

I'm currently in the middle of a "sudo port -Rv install wireshark"  
after doing a "sudo port clean wireshark".  I'll try downloading the  
source and then building directly after my build using MacPorts.   
However, I haven't used gdb in over fifteen years (used to be a  
developer, got sent to the abyss of systems administration and  
haven't clawed my way back out yet) so I'd appreciate a refresher on  
getting the backtrace via gdb.  Thanks in advance.

Got a couple of lines of output from the MacPorts build which look  
suspicious, though (do they help pinpoint the possible problem with  
MacPort patches?):

> gcc -DHAVE_CONFIG_H -I. -I. -I. -I/opt/local/include -I/opt/local/ 
> include -I/opt/local/include -no-cpp-precomp "-D_U_=__attribute__ 
> ((unused))" -O2 -Wall -W -Wdeclaration-after-statement -Wendif- 
> labels -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wwrite- 
> strings -Wshorten-64-to-32 -Wstrict-prototypes -Wmissing- 
> declarations -Wno-pointer-sign -Wcast-align -I/opt/local/include/ 
> glib-2.0 -I/opt/local/lib/glib-2.0/include -I/opt/local/include -I/ 
> opt/local/include -I/opt/local/include -MT ascend-scanner.lo -MD - 
> MP -MF .deps/ascend-scanner.Tpo -c ascend-scanner.c  -fno-common - 
> DPIC -o .libs/ascend-scanner.o
> ascend-scanner.c:2423: warning: no previous declaration for  
> 'ascendget_lineno'
> ascend-scanner.c:2432: warning: no previous declaration for  
> 'ascendget_in'
> ascend-scanner.c:2440: warning: no previous declaration for  
> 'ascendget_out'
> ascend-scanner.c:2448: warning: no previous declaration for  
> 'ascendget_leng'
> ascend-scanner.c:2457: warning: no previous declaration for  
> 'ascendget_text'
> ascend-scanner.c:2466: warning: no previous declaration for  
> 'ascendset_lineno'
> ascend-scanner.c:2478: warning: no previous declaration for  
> 'ascendset_in'
> ascend-scanner.c:2483: warning: no previous declaration for  
> 'ascendset_out'
> ascend-scanner.c:2488: warning: no previous declaration for  
> 'ascendget_debug'
> ascend-scanner.c:2493: warning: no previous declaration for  
> 'ascendset_debug'
> ascend-scanner.c:2527: warning: no previous declaration for  
> 'ascendlex_destroy'
> if /bin/sh ./libtool --tag=CC --mode=compile gcc -DHAVE_CONFIG_H - 
> I. -I. -I.   -I/opt/local/include -I/opt/local/include -I/opt/local/ 
> include  -no-cpp-precomp -D_U_="__attribute__((unused))" -O2 -Wall - 
> W -Wdeclaration-after-statement -Wendif-labels -Wpointer-arith - 
> Wbad-function-cast -Wcast-qual -Wwrite-strings -Wshorten-64-to-32 - 
> Wstrict-prototypes -Wmissing-declarations -Wno-pointer-sign -Wcast- 
> align -I/opt/local/include/glib-2.0 -I/opt/local/lib/glib-2.0/ 
> include -I/opt/local/include   -I/opt/local/include -I/opt/local/ 
> include -MT k12text.lo -MD -MP -MF ".deps/k12text.Tpo" -c -o  
> k12text.lo k12text.c; \
> then mv -f ".deps/k12text.Tpo" ".deps/k12text.Plo"; else rm -f  
> ".deps/k12text.Tpo"; exit 1; fi
>  gcc -DHAVE_CONFIG_H -I. -I. -I. -I/opt/local/include -I/opt/local/ 
> include -I/opt/local/include -no-cpp-precomp "-D_U_=__attribute__ 
> ((unused))" -O2 -Wall -W -Wdeclaration-after-statement -Wendif- 
> labels -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wwrite- 
> strings -Wshorten-64-to-32 -Wstrict-prototypes -Wmissing- 
> declarations -Wno-pointer-sign -Wcast-align -I/opt/local/include/ 
> glib-2.0 -I/opt/local/lib/glib-2.0/include -I/opt/local/include -I/ 
> opt/local/include -I/opt/local/include -MT k12text.lo -MD -MP - 
> MF .deps/k12text.Tpo -c k12text.c  -fno-common -DPIC -o .libs/ 
> k12text.o
> k12text.c:2063: warning: no previous declaration for  
> 'K12Text_get_lineno'
> k12text.c:2072: warning: no previous declaration for 'K12Text_get_in'
> k12text.c:2080: warning: no previous declaration for 'K12Text_get_out'
> k12text.c:2088: warning: no previous declaration for  
> 'K12Text_get_leng'
> k12text.c:2097: warning: no previous declaration for  
> 'K12Text_get_text'
> k12text.c:2106: warning: no previous declaration for  
> 'K12Text_set_lineno'
> k12text.c:2118: warning: no previous declaration for 'K12Text_set_in'
> k12text.c:2123: warning: no previous declaration for 'K12Text_set_out'
> k12text.c:2128: warning: no previous declaration for  
> 'K12Text_get_debug'
> k12text.c:2133: warning: no previous declaration for  
> 'K12Text_set_debug'
> k12text.c:2167: warning: no previous declaration for  
> 'K12Text_lex_destroy'
> /bin/sh ./libtool --tag=CC --mode=link gcc  -no-cpp-precomp - 
> D_U_="__attribute__((unused))" -O2 -Wall -W -Wdeclaration-after- 
> statement -Wendif-labels -Wpointer-arith -Wbad-function-cast -Wcast- 
> qual -Wwrite-strings -Wshorten-64-to-32 -Wstrict-prototypes - 
> Wmissing-declarations -Wno-pointer-sign -Wcast-align -I/opt/local/ 
> include/glib-2.0 -I/opt/local/lib/glib-2.0/include -I/opt/local/ 
> include   -I/opt/local/include -I/opt/local/include  -Wl,- 
> search_paths_first -L/opt/local/lib -Wl,-search_paths_first -o  
> libwiretap_generated.la   ascend-grammar.lo ascend-scanner.lo  
> k12text.lo  -L/opt/local/lib -lz  -L/opt/local/lib -lgmodule-2.0 - 
> lglib-2.0 -lintl -liconv
> ar cru .libs/libwiretap_generated.a .libs/ascend-grammar.o .libs/ 
> ascend-scanner.o .libs/k12text.o
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