GCC update for testing

Hi;

I took a bunch of patches that were merged into the GCC 4.1 branch
(under GPLv2) and prepared a patch for merging them into our base
gcc. These are supposed to be bug fixes only.

You can get the patch here:
http://people.freebsd.org/~pfg/patches/patch-contrib-gcc
And, for those really interested, the log is here:
http://people.freebsd.org/~pfg/patches/gcc41-pr-log

It may be my imagination but the patch seems to be causing more
warnings than usual and it breaks the kernel here:

____
$ make
cc -c -O2 -Os -pipe -fno-strict-aliasing -march=athlon64 -std=c99 -g 
-Wall -Wredundant-decls -Wnested-externs -Wstrict-prototypes  
-Wmissing-prototypes -Wpointer-arith -Winline -Wcast-qual  -Wundef 
-Wno-pointer-sign -fformat-extensions  -Wmissing-include-dirs 
-fdiagnostics-show-option   -nostdinc  -I. -I../../.. 
-I../../../contrib/altq -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS -include 
opt_global.h -fno-common -finline-limit=8000 --param 
inline-unit-growth=100 --param large-function-growth=1000  
-fno-omit-frame-pointer -mcmodel=kernel -mno-red-zone -mno-mmx -mno-sse 
-msoft-float  -fno-asynchronous-unwind-tables -ffreestanding 
-fstack-protector -Werror  ../../../cam/scsi/scsi_sa.c
cc1: warnings being treated as errors
.../../../cam/scsi/scsi_sa.c: In function 'samount':
.../../../cam/scsi/scsi_sa.c:1887: warning: 'comp_supported' may be used 
uninitialized in this function
.../../../cam/scsi/scsi_sa.c:1888: warning: 'write_protect' may be used 
uninitialized in this function
.../../../cam/scsi/scsi_sa.c:1887: warning: 'comp_enabled' may be used 
uninitialized in this function
.../../../cam/scsi/scsi_sa.c:2728: warning: 'current_speed' may be used 
uninitialized in this function
.../../../cam/scsi/scsi_sa.c:2728: note: 'current_speed' was declared here
.../../../cam/scsi/scsi_sa.c:2727: warning: 'current_density' may be used 
uninitialized in this function
.../../../cam/scsi/scsi_sa.c:2727: note: 'current_density' was declared here
.../../../cam/scsi/scsi_sa.c:2725: warning: 'current_blocksize' may be 
used uninitialized in this function
.../../../cam/scsi/scsi_sa.c:2725: note: 'current_blocksize' was declared 
here
.../../../cam/scsi/scsi_sa.c:2728: warning: 'current_speed' may be used 
uninitialized in this function
.../../../cam/scsi/scsi_sa.c:2728: note: 'current_speed' was declared here
.../../../cam/scsi/scsi_sa.c:2725: warning: 'current_blocksize' may be 
used uninitialized in this function
.../../../cam/scsi/scsi_sa.c:2725: note: 'current_blocksize' was declared 
here
.../../../cam/scsi/scsi_sa.c:2728: warning: 'current_speed' may be used 
uninitialized in this function
.../../../cam/scsi/scsi_sa.c:2728: note: 'current_speed' was declared here
.../../../cam/scsi/scsi_sa.c:2725: warning: 'current_blocksize' may be 
used uninitialized in this function
.../../../cam/scsi/scsi_sa.c:2725: note: 'current_blocksize' was declared 
here
.../../../cam/scsi/scsi_sa.c:2728: warning: 'current_speed' may be used 
uninitialized in this function
.../../../cam/scsi/scsi_sa.c:2728: note: 'current_speed' was declared here
.../../../cam/scsi/scsi_sa.c:2725: warning: 'current_blocksize' may be 
used uninitialized in this function
.../../../cam/scsi/scsi_sa.c:2725: note: 'current_blocksize' was declared 
here
*** Error code 1
....
____

Other stuff I tested (Apache OpenOffice) builds fine.

cheers,

Pedro.
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