>Number:         33640
>Category:       port-alpha
>Synopsis:       sbin/disklabel fails to build on alpha w/gcc 4
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    port-alpha-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Jun 03 05:45:00 +0000 2006
>Originator:     Dave Huang
>Release:        NetBSD 3.99.20
>Organization:
Name: Dave Huang         |  Mammal, mammal / their names are called /
INet: khym@azeotrope.org |  they raise a paw / the bat, the cat /
FurryMUCK: Dahan         |  dolphin and dog / koala bear and hog -- TMBG
Dahan: Hani G Y+C 30 Y++ L+++ W- C++ T++ A+ E+ S++ V++ F- Q+++ P+ B+ PA+ PL++
>Environment:
	
	
System: NetBSD yerfable.azeotrope.org 3.99.20 NetBSD 3.99.20 (YERFABLE) #219: Fri Jun 2 12:56:04 CDT 2006 khym@yerfable.azeotrope.org:/usr2/obj.alpha/sys/arch/alpha/compile/YERFABLE alpha
Architecture: alpha
Machine: alpha
>Description:
	sbin/disklabel fails to build on NetBSD/alpha with gcc 4:

/usr/tools/bin/alpha--netbsd-gcc -O2  -Wall -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -Wno-sign-compare -Wno-traditional -Wreturn-type -Wswitch -Wshadow -Wcast-qual -Wwrite-strings  -Werror -mieee    -nostdinc -isystem /usr/src.local/obj.alpha/destdir.alpha/usr/include  -c    /usr/src.local/sbin/disklabel/main.c
cc1: warnings being treated as errors
/usr/src.local/sbin/disklabel/main.c: In function 'write_bootarea':
/usr/src.local/sbin/disklabel/main.c:924: warning: dereferencing type-punned pointer will break strict-aliasing rules

*** Failed target:  main.o
*** Failed command: /usr/tools/bin/alpha--netbsd-gcc -O2 -Wall -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -Wno-sign-compare -Wno-traditional -Wreturn-type -Wswitch -Wshadow -Wcast-qual -Wwrite-strings -Werror -mieee -nostdinc -isystem /usr/src.local/obj.alpha/destdir.alpha/usr/include -c /usr/src.local/sbin/disklabel/main.c
*** Error code 1

Stop.
nbmake: stopped in /usr/src.local/sbin/disklabel

The line in question is:
		bb = (struct alpha_boot_block *)bootarea;

and bootarea is an int[].

>How-To-Repeat:
	Add HAVE_GCC=4 to /etc/mk.conf, then try to build disklabel
for NetBSD/alpha.

>Fix:
	

>Unformatted: