pkg/34099: programs using xorg-libs crash with signal 10 on amd64

[eye.of.the.8eholder%gmail.com@localhost]

>Number:         34099
>Category:       pkg
>Synopsis:       programs using xorg-libs crash with signal 10 on amd64
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Jul 27 15:30:00 +0000 2006
>Originator:     Khelban Blackstaff
>Release:        3.99.22
>Organization:
>Environment:
NetBSD hostname 3.99.22 NetBSD 3.99.22 (mykern) #0: Sun Jul 16
19:56:46 EEST 2006  
root@hostname:/usr/obj/usr/src/sys/arch/amd64/compile/mykern 
amd64
>Description:
Hello.

I have an Intel P4 processor and use the amd64 NetBSD port.
I compiled xorg-libs which compiled fine. But, every
program using libX11.so or any other lib crashes with
signal 10.

I have tried the following command "gdb command -c command.core"
The output of the gdb is the following:

This GDB was configured as "x86_64--netbsd"...(no debugging symbols
found)... Core was generated by `xclock'.
Program terminated with signal 10, Bus error.
Reading symbols from /usr/pkg/lib/libfontconfig.so.1...
(no debugging symbols found)...done.
Loaded symbols for /usr/pkg/lib/libfontconfig.so.1
........ 
more libraries loading
........
Loaded symbols for /usr/libexec/ld.elf_so
#0  0x00007f7ffc028e98 in XFindOnExtensionList ()
   from /usr/pkg/xorg/lib/libX11.so.6
(gdb) quit

I use the latest pkgsrc cvs as of now (time of writing this).


>How-To-Repeat:
Compile xorg-libs on the amd64 port and then use any program that
is linked with some lib (e.g xterm)



>Fix:
Mihai CHELARU <mihai.chelaru%girsa.ro@localhost> 

pointed me to use "-fno-strict-aliasing" and recompile the
xorg-libs package which worked fine. Now all packages work
ok and don't crash

P.S
the xorg-libs package didn't honour CFLAGS,CXXFLAGS from
my mk.conf so i put the option in DefaultCCOptions in
NetBSD.cf